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159 Cards in this Set
- Front
- Back
Normal BP Values
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SBP < 120
-AND- DBP < 80 |
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Prehypertension BP Values
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SBP 120-139
-OR- DBP 80-89 |
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Stage 1 BP Values
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SBP 140-159
-OR- DBP 90-99 |
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Stage 2 BP Values
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SBP (> or =) 160
-OR- DBP (> or =) 100 |
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CO x SVR = ?
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BP
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for Afib and HTN, use what?
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a beta-blocker
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centrally acting is acting where?
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in the brain
|
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for a Norepinephrine infiltrate, use what?
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Regitine
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example of secondary HTN
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Preeclampsia
(HTN and protein in the urine that develops after the 20th week of pregnancy). |
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for HTN + chronic kidney disease, use what?
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an ACE inhibitor
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Initial drug therapy for HTN (for people with non compelling indications)
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Thiazide-type diuretics
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Beta-blockers and ACE inhibitors are more effective in who?
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Caucasians because the renin response is blocked
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CCB's and diuretics are more effective in who?
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African American and geriatric patients
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3 Adrenergic agents
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Dopamine
Epinephrine Norepinephrine |
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6 antihypertensive classifications
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Adrenergic agents
ACE inhibitors ARBs CCBs Diuretics Vasodialators |
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the sympathetic nervous system is the same as
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the adrenergic nervous system
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Adrenergic agents act where?
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centrally (alpha2)
and peripherally (alpha1) |
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Where do beta-blockers work?
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in the heart
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2 things Adrenergic blocking agents block
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Epinephrine
and Norepinephrine |
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Adrenergic agents do what to BP?
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decrease it
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Reserpine works where?
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Centrally
and Peripherally |
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1 Reserpine side effect
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Impotence
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Drug of choice for HTN in pregnancy
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Aldomet (methyldopa)
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1 drug used for HTN and BPH
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Cardura (doxazosin)
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makes you drowsy
comes in a patch opioid withdrawl |
Clonidine
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a Cardura side effect
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Impotence
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4 Adrenergic agent common side effects
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orthostatic hypotension
dry mouth drowsiness constipation |
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Dual Alpha1 and Beta blockers do what 2 things?
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decrease HR
cause vasodilation |
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4 Beta-blockers
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propranolol (Inderal)
atenolol (Tenormin) metoprolol (Lopressor) metoprolol ext (Toprol XL) |
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Dual Alpha1 and Beta blocker
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carvedilol (Coreg)
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Aldosterone increases what 2 things?
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preload and BP
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RAAS increases what 2 things?
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afterload and BP
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RAAS does what, and what are 2 results?
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coverts angiotensin I to II
results are potent vasoconstriction and stimulation of aldosterone |
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for HTN and HF, use what?
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ACE inhibitors
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ACE inhibitors prevent what 2 things and result in what 3 things?
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prevent angiotensin II formation and breakdown of bradykinn
result is decreased preload, afterload and BP |
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what might not work so good in African Americans for HTN?
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ACE inhibitors
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HF can be treated with?
What does it do to the heart? |
ACE inhibitors
decreases preload and afterload |
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Slows the progression of left ventricular hypertrophy after an MI
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ACE inhibitors
|
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What provides renal protection for diabetes patients?
How does it work? |
ACE inhibitors
relaxes the efferent arterial |
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Drugs of choice for HTN + HF
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ACE Inhibitors
|
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2 side effects of ACE inhibitors
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dry, nonproductive cough
possible hyperkalemia |
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3 Angiotensin II receptor blockers (ARBs)
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losartan (Cozaar, Hyzaar)
valsartan (Diovan) candesartan (Atacand) |
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Angiotensin II receptor blockers (ARBs) do what?
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allow angioitensin I to convert to II but block the receptors that receive II
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Angiotensin II receptor blocker (ARBs) side effects
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Hyperkalemia much LESS likely to occur, but can
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What 6 things should we think when we hear Adernergic agents?
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SNS
Epinephrine Norepinephrine Alpha1 Beta1 Beta2 |
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What 6 things should we think when we hear Cholonergic agents?
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PNS
Acedacholine Nicotinic Muscurinic Sludge Anti-sludge |
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cause smooth muscle relaxation
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CCBs
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Do not block Epinephrine / Norepinephrine
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CCBs
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Cause a negative inotropic effect on the heart
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CCBs
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RAAS
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renin angiotensin-aldosterone system
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Do not block Epinephrine / Norepinephrine
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CCBs
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What cause a negative inotropic effect on the heart?
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CCBs
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Used for BP and HR control
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CCBs
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CCB that controls HR, but causes constipation
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Verapamil (Calan, Isoptin)
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CCB that controls BP, but causes peripheral edema
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amlodipine (Norvasc)
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Decrease the workload of the heart, decrease BP
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Diuretics
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Directly relax arteriolar smooth muscle
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Vasodilators
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sodium nitroprusside (Niprise, Nitropress)
diazoxide (Hyperstat) |
Vasodilators
Give intervenously in HTN emergency |
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2 things about HTN urgency
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No end organ damage
Oral meds |
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2 things about HTN emergency
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End organ damage
IV meds |
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Sodium nitroprusside side effect
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possible cyanide toxicity
|
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stopping HTN drugs abruptly causes
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rebound HTN crisis
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4 HTN emergencys
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Heart - chest pain
Stroke - headache Renal failure - urine positive for protein; edema Eyes - ruptured blood vessels |
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2 primary forms of lipids in the blood
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Triglycerides
Cholesterol |
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Lipoprotein produced by the liver
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VLDL
Very low density lipoprotein |
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the lipoprotein we want to be low in a cholesterol reading
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LDL
low density lipoprotein |
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the lipoprotein we want to be high in a cholesterol reading
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HDL
high density lipoprotein |
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Recycles cholesterol
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HDL
|
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Which lipoprotein has the most protein?
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HDL
|
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which lipoprotein has the least lipids?
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HDL
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Where is HMG-CoA reductase?
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in the liver
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Where are clotting factors produced?
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in the liver
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optimal LDL level
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< 100
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normal Triglyceride level
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< 150
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low HDL level
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< 40
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high HDL level
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> or = 60
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desirable cholesterol level
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< 200
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What is NOT a positive risk factor for high cholesterol
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obesity
|
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CHD
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coronary heart disease
|
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inhibits HMG-CoA reductase
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HMG-CoA reductase inhibitors (also called HMGs, statins)
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2 Antilipemics
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HMG-CoA
Niacin (vitamin) |
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what are Statins used for?
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reducing LDL
|
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6 HMGs
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all drug names end in "statin"
Brand names: Crestor, Lipitor, Zocor, Mevacor, Pravachol, Lescol |
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used by the liver to produce cholesterol
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HMG-CoA reductase
|
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2 Statin side effects
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Increased LFTs
Rhabdo Myalysis - breakdown of muscle |
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lowers triglyceride, serum cholesterol, LDL and increases HDL levels
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Nicotinic Acid (Niacin)
|
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4 Niacin side effects
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Flushing
Increased BG (blood glucose) Hyperuricemia (gout) Hepatotoxicity |
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Gradually increase the dosage on what?
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Niacin
|
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works best on triglycerides
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Fibric Acid Derivatives
|
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3 Fibric Acid Derivatives
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clofibrate
gemfibrozil (Lopid) fenofibrate (Tricor) |
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4 Fibric Acid side effects
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increased LFT
dyspepsia gallstones myopathy |
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prevent reabsorption of bile acids from small intestine
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Bile Acid Sequestrants (lower cholesterol)
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3 Bile Acid Sequestrants side effects
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constipation
belching bloating |
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Have no direct effect on a blood clot that has already formed
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Anticoagulants
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Prevent blood clot formation
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Anticoagulants
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Inhibit clotting factors
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Anticoagulants
|
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3 Anticoagulants
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Heparin
Lovenox Coumadin |
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inhibit platelet binding
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Antiplatelets
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2 Antiplatelets
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Asprin
Plavix |
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Lyse blood clots, used for strokes or heart attacks
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Thrombolytics
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3 Thrombolytics
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all end in "ase"
alteplase (t-PA, Activase) reteplase (Retavase) tenecteplase (TNKase) |
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Directly inhibits the clotting factor
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Heparin
(route=IV) |
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Indirectly inhibits the clotting factor
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Coumadin
Warfarin (route=oral) |
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Indirectly inhibits vitamin K
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Coumadin
Warfarin (route=oral) |
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Anticoagulant that works the fastest
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Heparin
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2 Anticoagulant side effects
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Bleeding
Thrombocytopenia (50% or more drop in platelets; below 100,000) |
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4 things Anticoagulants prevent and treat
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Stroke
MI DVT PE (pulmonary embolism) |
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5 situations to use Anticoagulants
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MI
Unstable angina (acute coronary syndrome) AFIB Indwelling devices Major ortho surgery |
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monitored by APTTs
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Heparin
(activated partial thromboplastin times) |
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First priority if PTT is high (>180)
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turn off Heparin IV
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If patient is bleeding from Heparin, this will reverse it
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Protamine Sulfate
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Anticoagulants given subcutaneously
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Low molecular weight heparins
Lovenox Fragmin |
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When using Heparin, monitor what 3 things?
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APTT
H&H to show bleed Platelet count |
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2 things that cannot cause thrombocytopenia
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warafrin sodium (Coumadin)
antiplatelets (asprin, plavix) |
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INR values
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2.0 - 3.0 normal
2.5 - 3.5 mechanical heart valve |
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For an INR less than 2.0, use what and why?
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Heparin
Risk of embolism |
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Gold standard for heart attacks
|
Cardiac catherization
|
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Use for ischemic stroke
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Thrombolytic agents
|
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Warfarin antidote
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Vitamin K
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A patient on anticoagulants needs to be on what diet?
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a consistant one
|
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What happens when O2 demand is higher than the supply of O2?
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increased HR
|
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What is coronary atherosclerosis and what can it result in?
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stiffened arteries
myocardial ischemia |
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what is myocardial ischemia?
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lack of O2 in heart muscle
can cause necrosis is reversable |
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How is atherosclerosis fixed?
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Coronary angioplasty (balloon)
|
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What is Angina Pectoris and what causes it?
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chest pain
insufficient O2 in heart |
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characteristics of unstable angina
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also called preinfarction or crescendo
3 or more attacks per day more severe happen even at rest |
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3 things about vasospastic angina?
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spasm of coronary arteries
can occur at rest not readily fixed w/ nitro |
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immediate treatment for angina
|
M - morphine
O - O2 N - Nitro A - Asprin (160 - 325 mg) |
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adjunct agents for angina
|
nitrates
beta-blockers CCBs |
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how do Nitrates work?
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dialate coronary vessels allowing more O2 in
|
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How much and how long do you use Nitroglycerin SL?
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0.4 mg tab sublingual every 5 mins x3, after that call 911
|
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Nitrate side effects
|
Headache
Tachycardia Postural hypotension - lay pt down Tolerance - need time between |
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Nitro IV is no good if what colors?
|
blue
green dark red |
|
can use for long term prevention of angina
|
beta-blockers
|
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Beta-blockers (increase / decrease) HR?
|
decrease
|
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4 uses of beta-blockers
|
Angina
Anti HTN Heart protection after MI Migraines |
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Beta-blocker side effects
|
Bradycardia
Hypotension 2nd or 3rd degree block HF Glucose Lipids Dizzy / tired / unusual dreams Impotence Wheezing Constipation |
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How do CCBs work and what is the result?
|
block calcium inflow which vasodilates arteries
reduce myocardial contractility (negative inotropic action) result: decreased O2 demand |
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4 uses of CCBs
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Angina
HTN Supraventricular tachycardia Short term AFIB fix |
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It is safe for COPD patients to use
|
CCBs
|
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CCB side effects
|
Hypotension
Palpitations Bradycardia Tachycardia Constipation Nausea Dyspnea |
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Moinitor blood levels when patients are taking what?
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CCBs
|
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What do diuretics do?
|
remove sodium and water
|
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Where do diuretics work?
|
in the loop of henle
|
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CAIs are in what class of drugs?
|
diuretics
|
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What do CAIs do?
|
Inhibit carbonic anhydrase which retains H+ and excretes bicarbinate
increases urine volume |
|
CAI drug
|
acetazolamide (Diamox)
|
|
Loop diuretic side effects
|
hypokalemia (low K)
hyperuricemia (high uric acid) |
|
If a patient is prescribed a CAI, what are you going to monitor?
|
electrolytes - k, na, ca
BUN/SCr |
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If a patient is on a loop diuretic, what is not functioning?
|
kidneys
|
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What 2 things reduce excessive intraocular pressure
|
mannitol and CAIs
|
|
1 osmotic diuretic
|
mannitol (Osmitrol)
|
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What is Mannitol used for?
|
Reduction of intracranial pressure - used in ER for head trauma
Reduction of high intraocular pressure |
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Where do potassium-sparing diuretics work?
|
collecting ducts and distal convoluted tubules
|
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4 Potassium-sparing diuretics
|
amiloride (Midamor)
triamterene (Dyrenium) spironolactone (Aldactone) eplerenone (Inspra) |
|
What do Potassium sparing diuretics do?
|
block aldosterone
retain potassium excrete na + h2o |
|
potassium sparing diuretics spironolactone and triamterene are used for what?
|
hyperaldosteronism
HTN reverse potassium loss from lasix, loop diuretic |
|
spironolactone side effect
|
gynecomastia (man boobs)
|
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What is Digoxin used for?
|
CHF and Arythmias
|