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51 Cards in this Set

  • Front
  • Back
epinephrine
iv/io dosage when used for cardiac arrest
1 mg (10 ml of 1:10,000 soln) q 3-5 mins during resusc
each dose is followed by 20 mL flush, then raise arm 10-20 seconds after dose
vasopressin
iv dosage when used for cardiac arrest
40 U, can replace first or second dose of epi
amiodarone
iv/io dosage when used in vf/vt/cardiac arrest unresponsive to cpr
300 mg iv/io once, then one 150 mg iv push in 3-5 mins
lidocaine
iv/io dosage when used in vf/vt/cardiac arrest unresponsive to cpr
1-1.5 mg/kg (1st dose), then .5-.75 mg/kg at 5-10 min intervals
indication for mgso4
cardiac arreest only if torsades de pointes or suspected hypomagnesemia is present
digitalis toxicity
mgso4
iv/io dosage in cardiac arrest
1-2 g diluted in 10 mL of D5W, given over 5-20 mins
when should an anti-arrhythmic be used during acls
when vf/pulseless vt persists after 2-3 shocks, separated by cycles of cpr and administration of vasopressor, use anti-arrhythmic
anti-arrhythmics used in persistent vt/vf
amiodarone
lidocaine
mgso4
indications for atropine
first drug given for sx sinus brady
av block or ventricular asystole (bt not mobitz ii)
second drug (p epi/vasopressin) for asystole or bradycardic pea
organophosphate poisoning
atropine
iv/io dose when given for asystole or pea
1 mg, then repeat q 3-5 mins for max of 3 doses
mnemonic for causes of PEA
Hs (6) and Ts (5)
hypovolemia
hypoxia
h+ excess (acidosis)
hyper/hypokalemi a
hypoglycemia
hypothermia

toxins
tamponade
tension ptx
thrombosis (coronary or pulm)
trauma
ekg findings of hyperkalemia
tall, peaked t waves
wide qrs
sine-wave pea
ekg findings of hypokalemia
flattened t waves
prominent u waves
wide qrs
qt prolongation
wide complex tachy
tx of hyperkalemia
sodium bicarb
glucose + insulin
CaCl3
kayexelate/sorbitol
dialysis
albuterol (possibly)
tx of hypokalemia
K infusion
add Mg if cardiac arrest
ekg findings of hypothermia
j or osborne waves
in general how long can you give a pt o2 during acs
6 hrs
what dosage of asa should be given in a pt with acs
160 or 325mg
dosing of nitroglycerin tabs
up to 3 tablets sublingual, q 3-5 mins
contraindications for nitro
bp <90/30
bradycardia (<50 bpm)
tachycardia
recent pde-5 inhibitor use (viagra) --> refractory hypotension
inferior mi or rv infarction (venodilation will --> decreased rv pressure, and these pts esp need increased rv filling pressures to maintain co and bp)
what is the time frame of reperfrusion in a pt with a stemi
fibrinolytics within 30 mins of arrival
or pci within 90 mins of arrival
what meds are generally given if cardiac ischemia is suspected
MOAN
morphine (if pain not relieved by nitro)
o2
asa
nitro
morphine
iv dosage in stemi
2-4 mg
additional doses of 2-8 mg at 5-15 min intervals
major contraindications to asa
true asa allergy
active or recent gi bleed
indication for administration of fibrinolytics
>1 mm ST elevation in 2 contiguous ekg leads
can be given if sx occurred within 12 hrs of admin
which is superior: fibrinolytics or pci
pci if done at a skilled pci facility
most commonly used fibrinolytics
tpa
reteplase
tenecteplase
what is the sequence of treating poor perfusion 2ndary to bradycardia
prepare for transcutaneous pacing
give atropine while awaiting pacer
if atropine is not effective, give epi or da until pacer arrives
epi
dose for bradycardia
2-10 mcg/min
dopamine
dose for bradycardia
2-10 mg/kg/min
indications for starting transcutaneous pacing
bradycardia pts with sx who are unstable, esp if with type 2 2nd degree heart block or 3rd deg AV block
start immediately if no response to atropine, atropine will likely not work, or if pt is severely sx
what to do if transcutaneous pacing is ineffective
start transvenous pacing
contraindications for tcp
severe hypothermia
not rec for asystole
recommended uses for tcp
sx bradyarrhythmias
brady w escape rhythms
standby pacing
rhythms for unstable tachy
afib
a-flutter
svt
monomorphic and polymorphic vt
wide-complex tachy of uncertain type
pathophysiology of unstable tachy
heart is beating so fast that co is reduced --> pulm edema, coronary ischemia, and reduced blood flow to vital organs
heart is beating ineffectively so taht coordination between atrium and ventricles or b/l ventricles is ineffective
tx of unstable tachy
immediate cardioversion
sx and si of unstable tachy
altered ms, cp, sob, presyncope/syncope
hypotension
shock
rate usually >150
if a pt has unstable tachy with ekg showing monomorphic vt, how to manage pt
synchronized cardioversion, initial shock of 100J
if no response, then increase dose in stepwise fashion
if a pt has unstable tachy with ekg showing polymorphic vt, tx?
high energy unsynchronized shocks (defib doses)
synchronized vs unsynchronized shock
unsync: shock is delivered as soon as shock button is pushed, and can fall anywhere during cardiac cycle. must use HIGHER energy thank synch shock

sync: uses a sensor to deliver the shock so that it fires at peak of qrs complex; avoids shocking during t waves (that --> vf); lower energy required
when is sync shock used
sx stable pt w tachy
when is unsync shock used
pulseless tachy
pre cardiac arrest (severe shock or polymorphic vt)
when you are unsure which to use
rhythms for stable tachy
sinus tachy
a-fib
a-flutter
av block
vt
if pt has stable tachy with narrow qrs and reg rhythm, next step?
vagal maneuvers
give adenosine, if no conversion give again at increased dose x2
dose for adenosine for cardioversion
rapid iv push of 6 mg initially, then 12 mg through rapid iv push
if pt has stable tachy with narrow qrs and irreg rhythm next step?
control rate (likely afib or aflutter), use diltiazem or BB
if pt has wide qrs and regular rhythm, next step?
if vt or uncertain rhythm, amiodarone
synchronized cardioversion

if svt with aberrancy, give adenosine
dose of amiodarone when given fro vtach
150 mg iv over 10 mins, repeat as needed uuntil 2.2g/24 reached
if pt has pre-excited a-fib, next step
AVOID AV blocking agents
give anti-arrhythmic, suhc as amiodarone 150 mg
how does adenosine work
increases avv block and terminates 90% of all re-entrant rhythms