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249 Cards in this Set
- Front
- Back
Digoxin is a ______ agent which acts to decrease ___________ and increase __________
|
AV nodal blocking agent;
AV nodal conduction velocity; AV nodal refractory period |
|
Adenosine functions by ______________. It also interrupts the....
|
slowing the conduction through the AV node;
reentry pathways |
|
Quinidine works by converting __-->___ and ___ (or non sustained__) -->___
|
AF; NSR
PVC (VT); NSR |
|
Quinidine is indicated for the conversion (to NSR) or prophylaxis of ____ as well as the conversion of ____ to NSR.
Also indicated for use in life-threatening _____________ |
AFib;
PVC's; ventricular arrhythmias |
|
Major contraindications for Quinidine are (2):
Quinidine prolongs the _____ interval which can lead to some incidences of _____ and _______ |
if the pt has a history of long QT syndrome or drug induced torsades;
QT interval; tosades; quinidine syncope (dizziness, fainting) |
|
Quinidine is a _______ drug in class ____.
|
antiarrhythmic;
class IA |
|
How does quinidine prolong the QT interval?
This leaves the myocardium (and pt) vulnerable to... |
delays repolarization;
vulnerable to VT or VF (Torsades des pointes, TdP) and sudden death |
|
When treating AFib or Aflutter, want to pretreat with ____ _before treating with Quinidine (to control the ventricular rate as reversion to NSR occurs).
This is because of the vagolytic effects of quinidine which enhances _______ and may result in a very high _________ if used in the presence of atrial tachycardia |
Digoxin;
AV conduction; ventricular rate |
|
Procainamide use is the most frequent cause of ________
|
drug-induced lupus
|
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The principle metabolite of procainamide is ________ and is formed by ________ in the liver.
This active metabolite contributes to the overall ______ activity by exerting class ___ effects. |
N-acteylprocainamide (NAPA);
acetylation (conjugation); anti arrhythmic activity; III |
|
Lidocaine is ineffective against ___ and ___
Is indicated for the use in: |
AF ad Aflutter;
acute management of ventricular arrhythmias occurring during cardiac manipulation or in relation to an acute MI; conversion of non-sustained VT to NSR |
|
Boxed warning for Flecainide acetate: can have.....
Due to this, F.A. is unacceptable for use in its whose arrhythmias are ____________. |
pro arrhythmic effects in its with a fib and aflutter;
non-lifethreatening |
|
Propafenone indications:
|
documented life-threatening ventricular arrhythmias
|
|
Beta blockers (as antiarrhythmics) mechanism of action is that they slow the ventricular rate response in AF by slowing ________. Two ways they do this:
|
AV conduction;
increases refractory period of the AV node, decreases conduction velocity through the AV node. |
|
Beta blockers have the best potential to control ventricular rate in its whose AF is caused by enhanced..........
|
sympathetic activity (e.g. thyrotoxicosis)
|
|
Esmolol is a beta blocker used as an anti arrhythmic and is ______ acting.
is used for............. |
ultra;
rapid control of ventricular rate in AF or Aflutter in circumstances where short-term ventricular rate control is needed. |
|
Amiodarone is a non competitive antagonist at peripheral ____ and ___ receptors;
Decreases ___, ___ and ____ (_____ inotrope) |
alpha and beta;
HR, TPR, and FOC (Negative inotrope) |
|
Amiodarone prolongs the
________ (((through the blockade of ___ channels (Class III effects)))) and the ______ of all excitable tissue |
action potential duration; K+;
effective refractory period |
|
Amiodarone is a very strong inhibitor of both:
|
normal and abnormal automaticity
|
|
Amiodarone decreases ______ in all cardiac tissues and increases _______.
|
conduction velocity; AV nodal conduction time
|
|
ADR of amiodarone
Lungs: Liver: Thyroid: Eye: CV: Skin: |
pulm fibrosis (d/c amiodarone);
Asx elevation of hepatic enzymes; hypothyroidism; corneal microdeposits; Sx bradycardia and heart block, worsening CHF, hypotension; photodermatitis |
|
Amidarone has serious drug interactions with ___ (increases.....) and ____ (has an increase ______ effect due to decreased clearance)
|
Digoxin (digoxin plasma levels); warfarin (anticoagulant effect)
|
|
Sotalol is a nonselective _____ that prolongs the _____ which may lead to _____
|
beta blocker; QT interval; torsades
|
|
Ibutilide fumarate is administered via ______ for ____conversion of AF or aflutter of recent onset to NSR
|
IV infusion;
rapid |
|
Dofetilide is used for ___ conversion of AF or Aflutter to NSR and for ______ of NSR after conversion
|
acute;
maintenance |
|
What are the "Class III Antiarrhythmic affects"?
|
blockade of the K+ channel to prolong the AP duration
|
|
Verapamil markedly slows _______ by increasing effective refractory period of the AV node. Also prolongs ______ with no effects on ____ or _____
|
AV conduction; AV nodal conduction time;
P waves, QRS duration |
|
Verapimil is indicated for temporary control of rapid ventricular rate in ___ or ___ EXCEPT when these arrhythmias are associated with _______________ (WPW syndrome). In this case it is contraindicated!!!
|
AF or Aflutter;
accessory bypass tracts |
|
Diltiazem has actions similar to _______
|
verapamil
|
|
Adenosine slows AV ______ and increases AV ________.
Also interrupts the........ |
nodal conduction; nodal effective refractory period;
reentry pathways through the node |
|
Prolongation of AV nodal conduction time often occurs with transient .........
|
1st, 2nd, or 3rd degree AV blocks
|
|
Adenosine is the drug of choice for prompt conversion .......(such as ____ or ____) to NSR
|
paroxysmal supra ventricular tachycardia (AV reentry or AV nodal reentry)
|
|
Adenosine is generally preferable to verapamil due to....
|
its very short term duration of activity
|
|
Wolff-Parkinson-White (WPW) syndrome is a congenital pre-excitation syndrome in which.....
This allows.... |
an accessory bypass tract constitutes a secondary conduction pathway between the atria and ventricles;
the atria impulse to bypass the AV node and activate the ventricles prematurely |
|
What are the EKG findings in WPW syndrome?
|
Short PR interval, abnormally wide QRS complex with initial slurring (delta waves), and paroxysmal tachycardia (most often either AV reentrant or AFib)
|
|
For WPW with AFib, Which agents are absolutely contraindicated and give examples specified in notes.
This is because..... |
AV nodal blocking agents (CCBs such as verapamil and diltiazem, digoxin and adenosine);
blockage of AV conduction allows atrial impulses to be conducted down the bypass tract (since fast-response fibers using fast sodium channels are not inhibited) |
|
What are 4 complications of AFib?
|
increased risk of cerebral thromboembolism (stroke), increased mortality, decreased diastolic filling time, irregular and rapid ventricular rate
|
|
What are the most common signs and symptoms of Afib?
|
palpitations, chest pain, dyspnea, fatigue, lightheadedness, syncope.
However, some pts may be asx |
|
What are some hemodynamic complications of AFib?
|
irregular ventricular response, rapid heart rate, impaired coronary perfusion, decreased CO
|
|
Treatment for AFib includes:
|
pharmacologic treatment and electrical treatment
|
|
Pharmacological cardioversion is usually done as a ___-patient treatment.
Drugs of choice include ______ and _____ antiarrhythmics Amiodarone can be used for output conversion due to its....Unless a _____ dose is required, then must be inpatient. |
in;
Class III agents and Class IC agents; relatively low pro-arrhthmic effects.; loading |
|
Electrical cardioversion of Afib requires an electrical shock that is.....
Inpt pretreatment with meds may.... |
synchronized with the R wave to avoid stimulation during repolarization phase;
enhance success for cardioversion |
|
What are the most commonly used drugs for rate control in Afib?
|
nondihydropyridine CCB's (verapamil, diltiazem), BBs (metoprolol), digoxin in HF its in combination with above two when they are inadequate when used alone
|
|
Medications used for rate control can be used for both acute/new onset and for chronic AFib. For acute AFib, they control the ______ and relieves ______. In chronic Afib, _____ are controlled and __________ is prevented.
|
rapid ventricular rate; symptoms
Symptoms; tarchycardia-induced cardiomyopathy |
|
What are the most commonly used agents for rhythm control in a pt with AFib?
|
Class III Drugs (amiodarone, dronedarone, stall and dofetilide) and class IC drugs (flecainide, propafenone)
|
|
Amiodarone is the most commonly used agent for rhythm control in Afib. It is highly efficient at preventing ________, has low ________ potential but has numerous and serious __________.
|
recurrence;
proarrhthmic; extracardiac effects |
|
Dronedarone is contraindicate for use in _________ or ______.
|
Class IV HF, Sx HF with recent decompensation
|
|
Anticoagulation is used for _________ and ________
|
post-cardioversion prophylaxis and long-term prophylaxis
|
|
For AF>48 hours, anticoagulation is required to prevent ___________ and _______ and to allow existing clots to..........
Anticoagulate with ______ (target INR of ______) for more than or equal to ______ prior cardioversion and once NSR is obtained, should be continued for another ________. |
prevent formation of new clots; prevent extension of already existing clots;
adhere to the arterial wall to facilitate fibrinolysis; Warfarin; 2.0-2.0; 3 weeks; 4 weeks |
|
Post-cardioversion prophylaxis with anticoagulants needs to be done because the risk of developing clots is the same regardless of the type of _________.
For long-term prophylaxis, the risk may differ and needs to be evaluated to determine the risk of _____ based on ____ Score |
cardioversion;
stroke; CHADS2 |
|
CHADS2 score determines risk of ____ and the need for long-term prophylaxis.
Score of 0 is treated with _____. Score of 1 indicates ________. Treat with ____ or _____. Score > or = 2 indicates ______. ACCP guidelines recommend ________ as tx with a target INR of _______. |
Stroke;
aspirin; immediate risk for stroke; warfarin or aspirin; high risk of stroke. warfarin; 2.0-3.0 (2.5 target) |
|
Unfractionated heparin is ____ acting and only used __________.
|
rapid; parenterally
|
|
Heparin prevents ________ and ________.
It binds to circulating antigoaculant factor ________ (making the complex 100-1000x more potent then the factor alone). This complex them binds to and irreversibly inactivates which clotting factors? (4) |
extension of already formed clots and prevents new clot formation;
anti-thrombinIII (AT-III); IIa, IXa, Xa, XIIa (2,9,10,12a's) |
|
Thrombosis (clot formation) is inhibited by heparin because heparin inactivates _______ which is required for the conversion of ___ to____.
|
factor Xa;
prothrombin to thrombin |
|
Heparin inhibits clot extension because it inactivates _______ which is required for the conversion of _____ to _____
|
factor IIa (thrombin);
fibrinogen to fibrin |
|
Pharmacokinetics of heparin: Has extensive binding to ____, _____ and ____ which limits its bioavailability.
Low bioavailability results in high ______ and inability to....... Heparin is administered via.... |
plasma proteins, endothelial cells, and macrophages;
variability; predict dose-response relationships; IV infusion of SC bolus |
|
Heparin is monitored using the __________. This reflects alterations in the ____ pathway.
Heparinization to prolong thisto ___-___x normal has been considered adequate to prevent clot extension or formation |
Activated partial thromboplastin time (APTT);
Intrisnic; 1.5-2.5x |
|
Heparin has been indicated for the prophylaxis and tx of ____ and _____.
Requires a ____ dose (administered via a ___ bolus) as well as a _________. |
deep vein thrombosis; pulmonary embolism;
loading; IV; maintenance infusion |
|
Dosing adjustments of heparin are made on the basis of the _____. Duration is ______ (to be followed by long-term ____ therapy). Preferred to be given via continuous _____ over ____ doses because of a lower incidence of.....
|
APTT;
5-10 days; warfarin; IV infusion; spaced interval bolus; Major hemorrhage |
|
Prophylaxis use of heparin is administered via ____.
Used to prevent postop ____ in its who underwent major abdominal/thoracic surgical procedures or in its who are at risk of developing _______ disease. |
subcue injections;
DVT; thromboembolic |
|
What are three ADRs of heparin use?
|
Serious hemorrhage from overdose, thrombocytopenia, and osteoporosis
|
|
Serious hemorrhage from overdose of heparin is treated with
|
protamine sulfate
|
|
Heparin induced thrombocytopenia (HIT) can cause serious _______.
Resulting platelet aggregation can actually cause paradoxical _________. ______ may be the initial presentation of HIT which may occur up to several weeks after d/c of heparin therapy. |
bleeding;
thromboembolism; thrombotic events |
|
Components of management of HIT include ____ heparin and remove all sources of ______.
Give ___________ therapy for short term anticoagulation. Initiate long-term anticoagulant _____. |
D/C; heparin exposure;
specific direct thrombin inhibitor (DTI); warfarin |
|
Lepirudin is indicated for tx of ________ to provide ____ and prevent _____ complications.
Is a highly specific, irreversible direct inhibitor of _____. Is a recombinant form of ______ which is a naturally occurring peptide anticoagulant found in.... |
HIT;
anticoagulation; thromboembolic; thrombin; Hirudin; saliva of leeches |
|
Argatroban is a synthetic direct _____ inhibitor derived from the AA _______. Has _____ binding.
Prevents and treats thrombosis in _________. Given as an anticoagulant in its with or at high risk for ____ who are undergoing PTCA |
thrombin;
argenine; reversible; HIT; HIT |
|
Low molecular weight heparin can inactivate factor _____ since only the AT-III component of the heparin AT-III complex binds to the factor.
Both the heparin and ATIII components of the complex are required for the inactivation of factor ____ (_____). So much less inactivation of this factor occurs with ____ compared to _____. So, LMWH inactivate factor ___ about 4x as effectively as factor ___ |
Xa;
IIa (thrombin); LMWH; UFH; Xa; IIa |
|
Advantage of low molecular weight heparin:
|
APTT will not be prolonged as the LMWH concentration changes and does not need to be monitored
|
|
LMWH has greater ________ with reduced patient intersubject and intrasubject variability
UFH is more susceptible to intracellular ______ in macros and endothelial cells. LMWH have much lower binding to surface receptors on macros and endothelial cells and have improved and more predictable ____ following ____ injection. |
bioavailability;
degradation; bioavailability; SC injection |
|
LMWH has a longer ____ and ________.
Elimination is through a ________ route, while UFH is bound to _____ and ___ resulting in a dose-dependent clearance that may ____ with increasing doses. |
half-life and duration of action;
non-saturable renal; albumin; endothelial; saturate |
|
Limitations of LMWH include...
So its with a history of ____ should not receive LMWH's |
cross-immunoreactivity with UFH has been shown.
HIT |
|
LMWHs are now considered first line therapy for _____ and _____ of _______ as well as ______
|
prevention; treatment of venous thromboembolism (VTE);
acute coronary syndromes |
|
Prototype of LMWH is ________
Indications include for the prophylaxis of ____ which may lead to PE in its who are: (4) |
enoxaparin sodium;
DVT; undergoing abdominal surgery and are at risk of thromboembolic complications; undergoing hip replacement surgery (during and following hospitalization), undergoing knee replacement surgery, and who are at risk of thromboembolic implications due to severely restricted mobility during acute illness |
|
ADR of Enoxaparin Sodium (LMWH): Incidence of serious hemorrhage is ____ compared to heparin.
_____ is recommended as the antidote for any LMWH-induced bleeding. Dosing of Enoxaparin sodium= |
less;
Protamine; administer only by SC injection |
|
Warfarin is a _____ anticoagulant
|
coumarin
|
|
Warfarin MOA:
By doing this, the _____ accumulates in the blood and _______ the synthesis of coagulation factors. In the blood, the concentrations of the clotting factors are ____ in accordance with their ____. |
inhibits vitamin K epoxide reductase which is responsible for reducing Vit K epoxide back to Vit K;
vit K epoxide; reduces; reduced; half-lives |
|
Vitamin K is required to convert precursors of factors ___, ___, ___, and ___ into their respective inactive factors in the liver.
During the reaction, Vitamin K is oxidized to _______. Vit K epoxide redcutase is responsible for.... |
II, VII, IX, X;
Vitamin K epoxide; reducing Vit K Epoxide back into Vit K |
|
Which enantiomer is the 4-5x more potent one of warfarin?
|
S
|
|
Warfarin is monitored by ______. The _____ was developed as a way to measure this internationally.
A measurement of ___-___ indicates moderate intensity use of warfarin and is used in most settings to prevent or tx _____. A ratio of __-___ indicates high intensity and is used during/for _________ and __________ |
prothrombin time (PT);
INR (international normalized ratio); 2.0-3.0; thromboembolism; 2.5-3.5; mechanical valve replacement; recurrent thromboembolism |
|
Warfarin has no effect on....... but prevents.......
|
formed thrombi;
extension and formation of new clots |
|
Warfarin is indicated for use in the prophylaxis and treatment of ___ and ____. Also used for _____________
|
DVT; PE;
AF with embolization |
|
Warfarin dosing: Initiate therapy with a ___-___mg dose once per day.
May be started on the same day as heparin but need to over lap warfarin with heparin for at least ___-___ days before D/C heparin because....... |
5-10;
4-6; Onset of warfarin action is delayed about 4 days since there is already some amount of circulating factor II (half=life of 60 hr) which can become activated. |
|
A pt on warfarin therapy should have an INR of ___-___ for at least 24 hours before D/C heparin. Full anticoagulant effect requires about ___-___ days of therapy.
|
2-3;
7-10 days |
|
Monitoring of Warfarin is done based on ______.
|
PT time
|
|
ADR of warfarin: (2)
|
minor bleeding, hemorrhage from overdose
|
|
What do you use to treat hemorrhage from an overdose of warfarin?
|
phytonadione (vitamin K1)
|
|
Some drugs may _____ warfarin action and result in excessive ____, increased ____, _____ and ______.
|
enhance;
PT; INR; bleeding and hemorrhage |
|
If a drug enhances the action of warfarin, it may require decreasing the warfarin dosage. This can be caused by the inhibition of the _____ system (____ and ____ drugs do this) or due to additive/synergistic effects caused by ____ and ____.
|
P450;
cimetidine; amiodarone; aspirin; other NSAIDS |
|
Target INR ranges for warfarin use are:
2.5-3.5 for _______ or _______ 2-3 for....... |
mechanical prosthetic valves or prevention of recurrent MI;
all other conditions: MI, A fib, Tx of PE, valvular heart disease, tissue heart valves, prevention and tx of DVT |
|
Low risk category includes the presence of AF with no additional risk factors. Treat with:
|
ASA 81-325 mg/day
|
|
Moderate risk category includes AF plus __ additional stroke risk factor. Tx with ____ or ____ but use ____ if well tolerated and no additional bleeding risks
|
1; ASA; Warfarin;
Warfarin |
|
High risk category includes AF plus ______ stroke risk factors or a ______. Tx with ___ plus ____ as an alternative to warfarin; however, this combination is associated with _______.
|
2 or more risk factors for a stroke; previous stroke.
ASA; clopidogrel; more bleeding |
|
Pharmacological actions of hirudin include:
|
bind directly to thrombin (at the substrate recognition site for fibrinogen) and blocks the active enzymatic site through which thrombin exerts its action
|
|
Hirudins are very potent and specific thrombin inhibitors due to their ____, _____ binding. Are associated with ______ and not approved for use in the US
|
bivalent, irreverisble;
bleeding problems |
|
Bivalirudin is an ____ anticoagulant used only with concurrent ____ in pts with ____ undergoing PTCA
|
IV; ASA; UA (unstable angina)
|
|
MOA of Bivalirudin is as a _________. It binds reversibly to both circulating and clot-bound _____. Binding occurs at the ________ site but only transiently at the ______ site.
Has a ___ affinity allowing for ____ binding. This confers a _____ risk of serious bleeding and fewer ____ complications. The anticoagulant effect is ____. |
direct thrombin inhibitor.
thrombin; substrate recognition; active enzymatic; Lower; reversible. lower; ischemic; immediate |
|
Dabigatran etexilate is for first _____ active DTI (direct thrombin inhibitor)
Indications include to reduce the risk of ___ and ___ in pts with nonvalvular AF Dose ____ with or without food. No special monitoring required. Side effect includes _____ which may be taken with ___ or an ___ or ____ |
orally;
stroke; systemic embolism; BID; Dyspepsia; Food; H2RA; PPI |
|
Dabigatran etexilate is eliminated ____ and is not affected by, nor has any effects on the ____ system.
|
renally; P450
|
|
WArfarin causes more ______ bleeding where as Dabigatran etexilate causes more _____ bleeding. But the overall risk is ____.
|
intracranial; GI; similar
|
|
Fondaparinus sodium indirectly inhibits factor ____.
Is a synthetic ______ which contains the site on ____ where binding occurs to ATIII, causing an irreversible conformational change in the ATIII and the conferring specific ______ is increased several thousand-fold compared to ATIII alone. Indicated for prophylaxis of ____ that may lead to ___ in its undergoing: (3) |
Xa.
pentasaccharide; heparin; anti-Xa property; DVT; PE; hip fracture surgery (including extended prophylaxis), hip or knee replacement surgery; abdominal surgery in pts who are at risk of TE complications |
|
Rivaroxaban is an ____ Xa inhibitor.
Indicated for prophylaxis of ____ that may lead to ___ in pts undergoing hip or knee surgery. Reduces risk of ___ and ____ in pts with nonvalvular AF. No need for coagulation monitoring. |
oral;
DVT; PE; stroke; systemic embolism |
|
Dabigatran is slightly better than _____;
Rivaroxaban is _____ compared to warfarin. |
warfarin;
similar |
|
Warfarin is the ____ expensive.
|
least
|
|
Aminocaproic acid inhibits _____ via inhibition of _______ and ________.
Indicated for the tx of excessive _____ resulting from excessive systemic ____. |
fibrinolysis; plasminogen activator substances; antiplasmin activity;
bleeding; fibrinolysis |
|
Tranexamic Acid competitively inhibits ______ activation and noncompetitively inhibits ____ (at a ____ dose); Is about ___x more potent than aminocaproic acid.
Indicated for short term use in ____ its to reduce or prevent ____ and to reduce the need for ______ therapy during and following tooth extraction. |
plasminogen; plasmin; higher; 10;
hemophilia pts (2-8 days); hemorrhage; replacement |
|
Thrombolytic agents are _____ activators that act either directly or indirectly to convert _____ to ______ which then functions to.......
|
plasminogen;
plasminogen to plasmin; degrade clots |
|
As clots are lysed, increased local concentrations of _____ may occur, causing enhanced platelet aggregation and thrombosis. adjunctive, prophylactic administration of ____ or _____ is used to prevent rethrombosis.
|
thrombin;
aspirin (antiplatelet) or heparin (anticoagulant) |
|
Lysis of the fibrin clot produces ________. Fibrinogen is depleted and factors ___, ___, ___ and ___ are degraded.
The _____ state inhibits further clotting but also impairs ______ |
fibrin degradation factors; I, II, V, and VIII;
"Lytic"; hemostasis |
|
Principle ADR of thrombolytics is _______.
Plasmin cannot distinguish between a _____ and a ____ that prevents bleeding from a vascular injury. |
hemorrhaging;
pathologic thrombus; hemostatic plug |
|
Plasminogen activators not only act upon fibrin-bound plasminogen but also on circulating ______, producing a plasmin-generated ____________
|
plasminogen;
systemic fibrinolysis ('lytic state') |
|
Thrombolytic drugs cause ______ of clots and decrease mortality as well as improve____ after an acute MI if administered soon enough.
|
dissolution;
LV function |
|
Candidates for thrombolytic therapy after an MI if: (4)
|
within first 12 hours of onset of chest pain; from 12-24 hr after onset and symptoms ongoing of ischemia (persistent ST set elevation, chest pain); ST set elevation in two or more adjacent leads or a new LBBB; no contraindications to thrombolytic tx
|
|
After ____ hours, pt is not eligible for thrombolytic therapy
|
24
|
|
Absolute contraindications for thrombolytic treatment (4):
|
Hx of hemorrhagic stroke at any time; acute pericarditis; active internal bleeding; known intracranial neoplasm
|
|
Advanced age is not considered a _______ but may be a high risk factor for thrombolytic therapy.
|
contraindication
|
|
Benefits of thrombolytic therapy are seen when given........
They include: (3) |
as soon as possible after symptom onset;
early coronary artery patency; improved LB function (increased EF, decreased infarct size); reduction of mortality |
|
Risks of thrombolytic therapy include (1):
|
hemorrhage (no significant difference among thrombolytic agents)
|
|
Alteplase is a ___________ that has greater ____ specificity than SK (streptokinase) without having the ____ effect.
Is a recombinant DNA product identical to endogenous _____ |
direct plasminogen activator;
fibrin; antigenic effect tPA (tissue plasminogen activator) |
|
Alteplase is a ___________ that has greater ____ specificity than SK (streptokinase) without having the ____ effect.
Is a recombinant DNA product identical to endogenous _____ |
direct plasminogen activator;
fibrin; antigenic effect tPA (tissue plasminogen activator) |
|
Alteplase induces some systemic _____ but a far lesser degree is induced by alteplase than by streptokinase.
|
fibrinolysis
|
|
Alteplase is administrated via ____ only.
Indicated during a ______ for the lysis of ______ occluding coronary arteries, to improve_____, and to reduce incidence of ____ and ______. |
IV;
STEMI; thrombi; ventricular function; CHF and Mortality |
|
What dose of alteplase has been associated with an increase in intracranial bleeding?
|
150 mg
|
|
Reteplase has a longer half-life than _____.
Used for management of _____, for improved ________ following an acute MI and for the reduction of incidence of ___ and _____. Has a slightly lower ____ for bound fibrin and a slightly greater tendency to ______ compared to alteplase since the fibrin-binding domain is not present in the smaller MW reteplase. |
alteplase;
STEMI; ventricular function; CHF and mortality; affinity systemic fibrinolysis |
|
Reteplase is dosed ____ only as a double ________.
___U over 2 min then ___U over 2 min started 30 min after first dose. |
IV; bolus injection;
10; 10 |
|
Major advantage for reteplase is.....
|
the speed at which thrombolysis can be achieved (total dose given over 30 min; alteplase takes 90 min)
|
|
Tenecteplase has a prolonged _____ which allows a single, ____ dose over ____s.
Has the highest specificity for ______ and the lowest ____ potential |
half-life; IV; 5 sec;
pathologic fibrin clots; antigenic |
|
Aspirin irreversibly acetylates (forms covalent bond) the platelet enzyme ______ blocking the formation of ____.
|
COX-1;
TXA2 |
|
ADP-receptor (P2Y12) antagonists include ___ and ____
|
ticlopidine, clopidogrel
|
|
Drugs that are GPIIb/IIIa receptor antagonists are ____ and _____.
Drug that is an Ab to the GPIIb/IIIa receptor complex is _____ |
eptifibatide and tirofiban;
abciximab |
|
Aspirin is a clinically effective anti-______ drug. What is the dose that is considered an anti-____ dose?
|
platelet;
80-325 mg/day; antiplatelet |
|
By binding to COX-1, ASA prevents the formation of platelet aggregating agent ______ and suppresses platelet function for _____ (__ days)
|
thromboxane (TXA2); its lifetime; 10
|
|
What are the 4 indications for aspirin?
|
primary and secondary prevention of MI, secondary prevention of stroke; acute coronary syndromes
|
|
ASA use reduces the risk ______ events in adults without a hx of CV disease (_____ prevention).
For men, the benefit is to ___________ and for women, the benefit is to _________ |
CV disease events; primary;
prevent a first heart attack, prevent a first stroke |
|
Dipyridamole inhibits platelet _______; increases platelet ______; and inhibits platelet ______ and ______.
The PO dosage form is used as an adjunct to ______ anticoagulants in the prevention of _______ complications of cardiac valve replacement. |
phosphodiesterase (PDE); cAMP; platelet adhesion and aggregation;
coumarin; postop thromboembolic complications |
|
Triclopidine is an __________.
Is an irreversibly platelet ____ inhibitor: inhibits primary and secondary phases of platelet _____ induced by ___ and ___. Has no cross-reactivity with ____ and is equally as effective but much more expensive; |
adenosine diphosphate receptor antagonist;
aggregation; aggregation; ADP; fibrinogen; Aspirin |
|
Triclopidine should be reserved for pts who are intolerant or allergic to ____ or who have failed ____ therapy due to the possibility of life-threatening ______.
|
ASA; ASA;
blood dyscrasias (constituents in the blood are abnormal in number) |
|
Black boxed warning for Triclopidine includes warnings for ____ and ______.
|
Neutropenia and thrombotic thrombocytopenia purpura
|
|
Clopidogrel bisulfate is a _____.
Is a _____ selective platelet ____ inhibitor with 3x the potency of ticlopidine. Is a prodrug that requires...... The active metabolite irreversibly inhibits __________ by inhibiting the binding of ____ to its _____ receptor. It prevents subsequent ___-mediated activation of the glycoprotein IIb/IIIa complex. Platelets blocked by this are inactivated for.... |
ADP receptor antagonist;
ADP; aggregation; in vivo conversion to the active metabolite; ADP-induced platelet aggregation; ADP; P2Y12; ADP the remainder of their lifespan. |
|
Clopidogrel bisulfate is only marginally more effective than _____ but is safer than _____ with no cross reactivity to ASA
|
ASA; ticlopidine
|
|
Clopidogrel has a much lower incidence of _____ compared to ticlopidine and a lower incidence of _____.
Only had a small number of cases of ________ reported as well. |
bleeding disorders; neutropenia.
thrombotic thrombocytopenia purpura |
|
For acute coronary syndromes, combination of ___ and ____ is beneficial and reduces the risk of ___ and ___.
|
ASA; antiplatelets;
MI; Death |
|
For bare metal stents, should treat with ____ plus ___, ___ or ___ for at least _____.
|
ASA; clopidogrel, prasugrel, ticagrelor; 1 month
|
|
For drug-eluting stents, should treat with ____ plus ___, ____ or ____ for at least _____.
|
ASA; clopidogrel, prasugrel, ticagrelor; 1 year
|
|
After placing stents; _____ should be continued indefinitely.
|
ASA (81 mg/day)
|
|
Prasugrel is indicated to reduce the rate of _____ events including _____, in its with ACS who are managed with PCI.
|
CV events; stent thrombosis
|
|
Prasugrel is ______ that undergoes rapid conversion by hepatic _____________.
Inhibitors of 2C19 should not exert any effects and genetic variations in 2C19 should not cause......... |
prodrug; P450 CYP3A4;
suboptimal response to the drug |
|
Prasugrel is contraindicated with active ____ (___ or ____) and with a hx of prior ___ or ___.
Is not recommended for people over 75 because of an increased risk of.... |
bleeding (PUD, Intracranial hemorrhage); TIA or stroke;
fatal and intracranial bleeding |
|
Triclopidine Inhibits ADP-induced ______-_____ binding and ___-____ interactions
|
platelet-fibrinogen; platelet-platelet
|
|
Ticagrelor has a _____ onset and binds to platelets ______ so the effects are _____-lasting.
May cause ____ which is considered a self-limited effect and usually goes away with..... Indicated to reduce the rate of _______ in its with ACS MOA is as an _____ inhibitor. |
faster; reversibly; shorter;
dyspnea; continued treatment; thrombotic CV events; P2Y(12) inhibitor |
|
Platelet GIIb/IIIa receptor antagonists are administered ____ and inhibit platelet aggregate by reversibly inhibiting the binding of _____ to the GPIIb/IIIa complex.
Two drugs include ______ and ______ |
Intravenously; fibrinogen;
eptifibatide; tirofiban |
|
Eptifibatide is indicated for the tx of its with _____ and its undergoing ______.
|
ACS; PCI
|
|
Tirofiban is indicated for use with ____ for tx of ____ including medically managed its and those undergoing ____ or _____.
|
heparin; ACS; PTCA; atherectomy;
|
|
Eptifibatide and Tirofiban reduce the risk of ___, ____ , ____ or _____
|
new MI, death, refractory ischemia, repeat cardiac procedure
|
|
Abciximab is an _____ to the GPIIb/IIIa receptor. It inhibits platelet aggregate by binding to the GPIIIb/IIIa platelet _______ involved in binding of fibrinogen, vWF and other adhesive factors.
Indicated as an adjunct to _______ for prevention of acute cardiac ischemic complications in its at high risk for _____. Intended for use with ___ and ____ |
antibody;
receptor sites; PTCA (percutaneous transluminal coronary angioplasty); abrupt closure of the treated coronary vessel; heparin and aspirin |
|
Cholestyramine is an __________ that is used for isolated increases in ___.
Is an add on therapy for an additional lowering of _____ when combined with another drug of a different class. MOA: _______ which releases ______ in exchange for anions of ____ in the SI. Resulting complex is insoluble and not _____. |
anion-exchange resin; LDL;
LDL; Anion-exhcange resin; chloride anion; bile acids; absorbed. |
|
Cholestyramine interrupts the enterohepatic ______ and increases fecal elimination of _____.
Causes lowered intracellular _____, up regulation of cell surface _________, increased intracellular ____ uptake and lowered plasma ____ and ____. |
recirculation; bile acids;
cholesterol; LDL receptors; LDL; LDL and total cholesterol |
|
Cholestyramine may increase absorption other _____ and _______. Take other drugs ____ hours before or ____ hours afar.
|
drugs; fat-soluble vitamins.
1-2; 4-6 |
|
What are the two bile acid sequestrant drugs?
|
cholestyramine and colesevelam
|
|
Cholesevelam is a _____ polymer.
|
nonabsorbed
|
|
Niacin strongly inhibits ____ in adipose tissue (decreases ____ release, decreases hepatic synthesis of ____ and _____).
LDL is a ____ degradation production so a decreased product by the liver causes a decrease ____. |
lipolysis; fatty acid; TG and VLDL;
VLDL; LDL |
|
Nicotinic acid (niacin) results in a decreased level of ____ and ___.
|
LDL and TG
|
|
Niacin increases activity of _____ resulting in an increased clearance of ____ lowering __ levels.
|
lipoprotein lipase; VLDL; TG
|
|
Niacin inhibits hepatic uptake of ____ but does not prevent ___ removal from HDL. It also increases the amount of circulating ______ which is responsible for removing cholesterol from.....
|
HDL-C; choelsterol; HDL; peripheral tissues
|
|
Pharmacologic effects of niacin include:
|
decreased LDL, TGs and increased HDL
|
|
Nicotinic acid (niacin) is the most effective antihyperlipidemic because of its ability to....
|
increase HDL
|
|
Niacin is indicated as an adjunct to diet, alone or in combination with a ____ for reduction of elevated ___ and ___ levels in its with heterozygous ____________ (types ___ and ___) when the response to diet an other non pharmacological measures is inadequate.
|
bile acid sequestrate;
TG and LDL; primary hypercholesterolemia (types IIa and IIIb); |
|
Niacin can be used as an adjunct therapy for the treatment of very high serum ____ (Types ___ and ___) who are at risk for _____. (>___mg/dL)
|
TG's (IV and V); pancreatitis;
2000 |
|
Niacin warnings and precautions: Can cause mild to severe _____, sensation of ____, _____, _____ and ____ about 1-2 hours post dose.
These are a ______-mediated effect and prophylactic ____ may be beneficial before each dose (325 mg 30 min prior) |
cutaneous flushing, sensation of warmth, redness, itching, and burning;
prostaglandin D2; aspirin |
|
Fibric acid (Fibrates) stimulate _____ activity resulting in a decreased ______ which decreases serum ____.
|
lipoprotein lipase; VLDL; TG
|
|
Fibric acids activate the _________-receptor (PPAR-alpha). Stimulation of this reduces expression of genes that code for _____, which normally inhibits lipoprotein lipase.
Removal of this inhibition stimulates the ______ and allows for the enhanced clearance. It also up regulates the ____ genes which may be responsible for raising ___ levels. |
peroxisome proliferator-activated receptor;
apoC-III; lipoprotein lipase; apoA1; HDL |
|
Fibric acid drugs work by lowering ____, raising _____, and lowering ____ in isolated hypercholesterolemia.
|
TGs
HDL LDL |
|
Fibric acids are the dOC for the reduction of ___ levels in hypertriglyceridemia with normal ____ levels as well as in familial ________.
May be useful in combined _______ and ______. In these conditions there is a lipid triad with elevated ____, ____ and lowered ____ (termed _________ with a high CHD risk). |
TG; cholesterol;
dysbetalipoproteinemia; hypercholesterolemia and hypertriglyceridemia; LDL, TG, HDL; atherogenic dyslipidemia |
|
ADR of fibrin acids include.......
|
Dyspepsia, gallstones, and incidence of myopathy when combined with a statin (rhabdomyolysis)
|
|
Fibric acids can increase the anticoagulant effect of ______.
Gemfibrozil inhibits the metabolism of ____ (except _____) and has an increased risk of ________. |
warfarin;
statins; fluvastatin; rhabdomyolysis; |
|
Fibric acids are contraindicated in ____, _____, and ____ diseases.
|
hepatic, gall bladder, and renal
|
|
What are two common fibrin acid drugs?
|
gemfibrozil and fenofibrate
|
|
Gemfibrozil is indicated as an adjunctive therapy to _____ for hypertriglyceridemia (types ___ and ____) in its at risk for ______ where diet alone has not been sufficient.
Contraindications: ____ or _______ and _______. Warnings: ______ has occurred with combined gemfibrozil-_______ therapy and concurrent use with _______ is not recommended. |
diet; IV and V; pancreatitis;
hepatic or severe renal dysfunction, gall bladder disease; Rhabdomyolysis; lovastatin; HMG-CoA antagonists (statins) |
|
Fenofibrate is used as an adjunct to diet in pts with very high ____ levels (type ___ and ___ hyperlipidemias) who are not appropriately controlled by diet alone and are at risk for ______.
Is a prodrug which is completely hydrolyzed in the _____. Active metabolite is ______. Contraindicated in ____ and ____ disease. |
TG; IV and V; pancreatitis;
duodenum; fenofibric acid; hepatic and gall bladder |
|
HMG-CoA reductase inhibitors are commonly known as _____ and include....(5 drugs)....
|
statins;
lovastatin, simvastatin, pravastatin, atorvastatin, rosuvastatin |
|
Statins MOA is by competitive inhibition of the enzyme _________ which catalyzes the early rate-limiting step in ______ biosynthesis (conversion of ____ to _____);
They reduce hepatocellular _______, up regulate the ___ receptors and increase ____ clearance. They also induce an increase in high-affinity ____ receptors to increase LDL ____ and reduce ____ levels. Most effective at decreasing the number of.......which are the most atherogenic. |
HMG-CoA reductase; cholesterol; HMG-CoA; mevalonate;
cholesterol; LDL receptors; LDL; LDL; extraction; plasma; small, dense LDL particles; |
|
Statins average effect on the lipid profile includes a decrease in ____ , an increase in ____ (lowers the ____ ratio) and a decrease in ____.
|
LDL; HDL; LDL:HDL ratio; TGs
|
|
Lovastatin is indicated for......
|
primary and secondary prevention of CHD
|
|
Pravastatin is indicated for.....
|
primary and secondary prevention of coronary effects (reduce risk of MI and recurrent MI) and secondary prevention to reduce risk of stroke and TIA
|
|
Simvastatin is indicated for....
|
secondary prevention in pts who already have CHD
|
|
Fluvastatin is indicated for....
|
secondary prevention
|
|
Atorvastatin is indicated for.....
|
primary prevention in pts with type II DM and those without clinically evident CHD but with multiple risk factors to reduce the risk of MI and stroke and also secondary prevention
|
|
Rosuvastatin is indicated for....
|
primary and secondary prevention
|
|
Statins have a risk of _____ and the risk is increased with concurrent use of inhibitors of the ____ system (____ juice) and when using ______ or ____.
|
myopathy;
P450; grapefruit; fibrin acids; niacin |
|
Risk factors for myopathy in pts receiving statin-fibrate combinations include (3):
|
renal dysfunction, age>=80, high doses of statins
|
|
Simvastatin, lovastatin and atorvastatin plasma levels are increased by ____ inhibitors.
|
3A4
|
|
Pravastatin: phase II sulfate conjugation reactions only and have _____ expected with 3A4 inhibitors.
|
no drug interactions
|
|
Which statin is the most potent in lowering LDL?
|
Rosuvastatin
|
|
Ezetimibe is a ___________.
Localizes and acts at the ______ of the SI epithelial cells to block _____ absorption from the gut lumen from both ____ sources and _____ excretion. |
cholesterol absorption inhibitor;
brush-border; cholesterol; dietary; biliary |
|
Acute coronary syndrome is an operational term that refers to any group of symptoms that indicates _________.
|
myocardial ischemia
|
|
Majority of STEMI's are ____ Wave AMIs
|
Q
|
|
ACS in the absence of ST seg elevation indicates _____ or _______.
|
unstable angina; non-ST seg elevation MI
|
|
ER/intial therapy for the treatment of high or intermediate risk unstable angina and NSTEMI's include _____, ______, and ______.
Can use ______ if the NTG falls and this will also cause ____ and modest HR _____. |
supplemental nasal oxygen; aspirin; sl NTG;
Morphine sulfate; venodilation; reduction |
|
Class I recommendations for initial anti-ischemic therapy in the management of unstable angina/NSTEMIs include ____ sl or spray followed by _____ within the first 48 hours; ____ within first 24 hours if no contras; and ____ within the first 24 hours with pulmonary congestion or LVEF <40% in absence of hypotension.
|
NTG; IV;
BB; ACEIs |
|
Class III recommendations: Nitrates should not be administered if......(5 contras)......
What should be discontinued at the time the pt presents? |
SBP <90; severe bradycarida; tachycardia in absence of sx HF; RV infarction; received a PDE inhibitor in last 24-48 hrs;
all NSAIDS except aspirin |
|
Nitrates in the ICU are given via _____ as a ______ infusion; they are titrated up until.....
|
IV; continuous; pain is relieved or until side effects limit further increase
|
|
BBs given in the ICU include ____ and ____.
Given to ____ pts with no contraindications. They decrease the risk of progression to ____ but have not been shown to decrease mortality in ____. |
metoprolol; atenolol;
high risk; AMI; UA |
|
CCBs given in ICU are used for _________.
Avoid use in ______ and ______ and Avoid the use of immediate release _______ especially _____. |
Prinzmentals (vasospastic) angina;
LV dysfunction; pulm edema; dihydropyridine CCBs; nifedipine |
|
In the ICU, anti platelet therapy is beneficial both ____ and ____ in UA.
Use _____ if aspirin intolerant. Should be given ________ after presentation and continued ________. |
acutely; chronically;
clopidogrel; ASAP; indefinitely |
|
In the ICU, ____ heparin is indicated for pts at high or intermediate risk. Given as an ____ followed by a ______ to maintain an APTT at 1.5-2.5x's control.
Anticoagulant therapy should be added to the.... |
UFH;
IV bolus; infusion; antiplatelet therapy (ASA or clopidogrel) |
|
Which LMWH is approved for use in the ICU to treat ACS?
|
enoxaparin
|
|
If a noninvasive strategy has been chosen in the ICU to treat UA/NSTEMI, which drugs have been established to be effective?
If there is an indicated risk of bleeding, which would you use? |
UFH, enoxaparin, fondaparinux;
fondaparinux |
|
If you do not Stent a pt with UA/NSTEMI, what do you treat them with late/at discharge?
|
ASA 75-162 mg/day, SL NTG, clopidogrel 75 mg/day for at least 1 mo up to 1 year
|
|
If pt is treated with a bare metal stent for UA/NSTEMI, what do you treat them with late/at discharge?
|
ASA indefinitely, SL NTG, clopidogrel 75 mg/dal for at least 1 mo and up to 1 year
|
|
BB's are indicated as treatment for UA/NSTEMI (late tx/ at discharge) unless.......
What can be given if BB therapy is unsuccessful or are contraindicated? |
contraindicated;
CCB's |
|
For late tx/at discharge of pts with UA/NSTEMI, Should give ____ to all pts with HF, LV dysfunction, HTN, or diabetes and should be continued ______ unless contraindicated.
Can also use long term ____ for its without significant renal dysfunction or hyperkalemia who are already on ACEIs with LVEF <40% and have sx HF or DM. |
ACEIs;
indefinitely; AAs (aldosterone antagonists) |
|
Prehospital management of a STEMI includes the administration of....
|
162-325 mg of aspirin
|
|
What are the criteria for dx of STEMI with chest pain?
|
ST seg elevation in 2 adjacent leads or new LBBB; New Q waves
|
|
Class I recommendations for thrombolytic therapy in STEMI pts: Pts with ST seg elevation or new LBBB who present within ____ hours of sx onset should receive fibrinolytic therapy in the absence of contraindications.
|
12
|
|
Class III recommendations for thrombolytic therapy in STEMI pts: not advised in pts without ________ (except in ________ with ST depression in V1 and V2) or in asx pts whose initial symptoms began _______.
|
ST Seg elevation; posterior infarction;
More than 24 hours ago |
|
______ treatment is combined with thrombolytic therapy to prevent recurrence of coronary thrombosis.
Class I recommendations: Pts undergoing thrombosis should receive these medications for a min of ____ hours and preferably for the duration of the hospital stay, up to ______. |
Anticoagulant;
48 hours; 8 days; |
|
______ therapy should be added to its with STEMI's regardless of whether they undergo reperfusion with thrombolytics. Tx should include ________ and ________ for at least ____ days.
|
Antiplatelet;
Aspirin 81-162 mg/day; Clopidogrel 75 mg/day; 14 |
|
RAAS inhibitors should be given to a STEMI pt within the first___ hours with AWMI, pulm congestion or LVEF <40% in absence of hypotension or contraindications.
|
24;
|
|
Nitroglycerin Tx in STEMI pts: Give SL NTG ___mg every ____ min x ___ doses.
Follow this with..... Indicated for relief of ongoing _______, control of _____ or management of pulmonary _______. |
0.4; 5; 3;
IV NTG; Ischemic discomfort; hypertension; congestion |
|
Do not give NTG to pts with a SBP<90 because the hypotension can cause...
|
a decrease in coronary perfusion, allowing the infarct size to increase
|
|
Do not give NTG to pts with a HR of <50 or >100 bpm because....
|
hypotension and bradycardia may occur with first dose and reflex tachycardia may then occur.
|
|
Do not use NTG in an ______ infarct or in a ____ infarct due to the high risk of ______.
|
inferior wall; right ventricular;
hypotension |
|
Morphine sulfate is given to STEMI its who are in severe ____.
How does it cause venodilation? Also decreases ____ And _____ which _____ myocardial oxygen demand. Also decreases circulating _______. |
pain;
blocks central sympathetic outflow; TPR; afterload; decreases; catecholamines |
|
ASA results in an overall ___% reduction in death, _____, and _____ in the STEMI setting. The mortality benefit is additive to thrombolytics.
What is the dosage for acute management? |
25; reinfarction; stroke;
162-325 mg/day |
|
PO BBs should be given to STEMI its within the first ____if no contraindications.
IV BBs should not be given to STEMI pts who have any of the following contraindications: |
24;
Signs of HF or low output state, increased risk of cardiogenic shock, 2nd or 3rd degree heart block |
|
_______ (excluding ____) should not be administered during hospitalization for a STEMI
|
NSAIDS; ASA
|
|
CCU drug therapy for Tx of STEMI includes....
Daily _____ IV ______ for 24-48 hours after hospitalization |
ASA continued 81-162 mg/day; NTG
|
|
A Large anterior ___ or ______ seen on an echo indicates a high risk of embolic stroke.
|
MI; LV mural thrombus
|
|
On the cardiac floor, the use of NTG beyond 48 hours is reserved with its with ____, _______ or ______
|
HF, persistent chest pain, HTN
|
|
On the cardiac floor, UFH or LMWH (anticoagulant) should be used for pts at high risk of __________.
|
thromboembolism
|
|
Numerous clinical trials have indicated that early administration of a beta blocker reduce the incense of ____, ______, ________, ________ and _______
|
ventricular arrhythmias, sudden death, recurrent ischemia, reinfarction, and mortality
|
|
If administer BBs after 24 hours postMI, the goal is to prevent ___ and ____.
Pts with ____ may benefit to an even greater extent than other pts. |
reinfarction and death;
CHF |
|
ACEI's can be administered as early as ____ day(s) post-MI for at least ____ weeks to reduce ____, _______, ______ and ____
|
1; 6;
mortality, recurrent MI, incidence of CHF, ventricular remodeling |
|
In a STEMI, which two CCBs are the only ones that can be used? When can they be used?
|
verapamil; diltiazem;
when there is persistent angina or HTN unresponsive to BBs or BBs are contraindicated |
|
Class 1 post discharge anti platelet anticoagulant therapy includes tx with ______ and _______ or _____.
|
aspirin;
clopidogrel, prasugrel |
|
For post-discharge tx with aspirin, all its without a risk of bleeding should be given ____________mg/day and then follow with ______ mg/day indefinitely.
|
162-325; 81-162
|
|
For post-discharge tx with clopidogrel, give ___ mg/day or ________ (___mg/day) for all its who receive a drug-eluting or bare metal stent for _____ months.
For pts who do not receive stent tx, treat with clopidogrel for.... |
75;
Prasugrel (10); 12; 14 days |
|
Give Warfarin for ____ or ____/_____ and post-MI when indicated.
|
paroxysmal or chronic AF or Aflutter
|
|
ACEI tx post-discharge: should be started and continued ___________ for all pts post-STEMI with decreased LVEF and other chronic diseases (DM, HTN, Renal, etc)
|
indefinitely
|
|
Aldosterone blockade in post-MI pts without significant renal dysfunction or hyperkalemia is recommended in pts who are already receiving a ___ and ___, have a LVEF <40% and have either ____ or ____.
|
ACEI, BB;
DM, HF |
|
Alteplase (tPA) is a ____ Form of endogenous tissue plasminogen activator that directly converts _____ to _____.
Requires a bolus plus ____ infusion |
rDNA; plasminogen; plasmin;
90 min |
|
Reteplase (rPA) is a modified portion of____, has a _____ half-life allowing dosing by.....
Has ____ fibrin specificity than tPA. |
tPA; longer; two IV boluses 30 min apart;
Lower |
|
Tenecteplase is a modified _____ tPA, has the _______ half-life allowing a (dosing):
Has the _____ fibrin specificity |
endogenous; longest; single IV bolus over 5 seconds
highest |
|
Greatest benefit of use of thrombolytics post-MI is within ____ hours.
|
6
|
|
BBs are used post-MI to modulate excessively high Post-MI _____ Activity, decrease ______, limit ____ and _____
|
sympathetic; myocardial oxygen consumption; infarct size and myocardial damage
|
|
Long term use of BBs is to reduce ______. should be started ________ and continued.
|
mortality; ASAP; indefnitely
|
|
Vasodilators decrease _____ and ____, reduce ____ and myocardial wall _____ and stops the _____ process which causes LV dilation and progression to HF
|
preload and afterload; stress; remodeling
|
|
Which pts have the greatest benefit for ACEI's?
|
anterior wall MI, sx of HF, tachycardia or hx of previous MI
|
|
Nitrates can be given to reduce coronary _____ and decrease oxygen demand by decreasing _______. Also limits ______ and improves ________.
|
vasospasm; preload; infarct size; LV function
|
|
CCBs cause coronary _________. Improve coronary _______ and decrease oxygen _______.
Avoid which drug? |
vasodilation; perfusion; demand;
nifedipine |