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46 Cards in this Set
- Front
- Back
What are the four main side effects of centrally acting sympathoplegic drugs? (ie Methyldopa and Clonidine)
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1- sedation 2- mental depression 3- sleep upset 4- nightmares
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Where do the centrally acting sympathoplegic drugs (methyldopa, clonidine) for ANTI HTN work at? do they stimulate or block these sites?
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Methyldopa and Clonidine stimulate ALPHA TWO receptors
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Which centrally acting sypathoplegic is:
1) safe for pregnancy 2) causes lactation 3) positive coombs test |
methyldopa
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Which centrally acting sympathoplegic will decrease the sympathetic nervous system, and increase the parasympathetic nervous system causing side effects of DRY MOUTh, SEDATION, and rebound htn?
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Clonidine
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How do guanethidine and resperpine work as adrenergic neuron blocking agents?
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block release of NE from post gang sympathetics
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Which Adrenergic neuron blocking agent REPLACES NE from vesicles?
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Guanethidine
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Which adrenergic neuron blocking agent BLOCKS UPTAKE via VMAT?
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Reserpine
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What specific anti-htn has parkinson's like side effects?
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reserpine (because it is an adrenegeric neuron blocking agent)
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Which TYPE of anti-htn will prevent reflex tachycardia?
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beta blocker
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If you look at bloodwork of a beta blocker treated pt, what would you see in their lipids?
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high TGG and low HDL
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which beta blocker is approved for a thyroid storm?
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propanolol; it can also be used prophylaxically for migraines
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which beta blocker causes nightmares?
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propanolol
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what is the longest acting beta blocker?
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nadolol (it is a nonselective beta blocker)
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Where do the cardioselective beta blockers act at?
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beta one receptors
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which beta blocker is good for asthma, diabetic, and peripheral vascular disease pts?
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metoprolol
if it is good for asthma, it must act at beta 1 therefore CARDIOSELECTIVE |
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PARTIAL AGONIST beta blockers (PIN PEN ACE) are beneficial because they will cause decreased peripheral resistance. Therefore, they are good for patient's with
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Peripheral vascular disease
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PIN PEN ACE (partial agonist beta blockers that decrease peripheral resistance) are also good for?
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bradyarrhythmic patients because they have INTRINSIC SYMPATHOMIMETIC ACTIVITY hence, "partial agonists"
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PIN and ACE are also good for pt's with this pulmonary problem
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asthma
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There are four main drugs that will decrease bp without affecting heart rate or cardiac output, can you name them?
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Labetalol, carvedilol, nebivolol, esmolol
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Which drug that has vasodilating effects (decreases bp without HR or CO alterations) is good for a HTN emergency?
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Labetalol (alpha and beta blocker)
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Which drug that has vasodilating effects (decreases bp without HR or CO alterations) is proven to decrease the risk of heart failure and mortality?
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carvedilol
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Which drug that has vasodilating effects (decreases bp without HR or CO alterations) uses NO and is a beta one blocker?
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nebivolol
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Which drug that has vasodilating effects (decreases bp without HR or CO alterations) is used for INTRA and POST operative HTN? tachy and HTN?
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esmolol (also short acting)
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Alpha blockers must be used with ____ because they cause retainment of salt and water
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diuretic
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Which ANTI HTN drug subcategory is known for an extreme drop in BP upon first dose?
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alpha blockers
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What endocrine pathology are nonselective alpha blockers used for?
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diagnosis and treatment of pheocytochroma
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How do vasodilators works?
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They relax smooth muscle of arterioles
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What are the two most common side effects of the vasodilators?
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reflex sympathetics and Na/H20 retention
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Which vasodilator is best for blacks and those with severe htn?
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hydralazine
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what is a major heart problem caused by hydralazine?
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angina or arrhythmia
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which vasodilator MUST be used with a beta blocker and a loop diuretic?
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minoxidil
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Which vasodilator acts at the d1 receptor?
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Fenoldopam (DO NOT USE W GLAUCOMA pts)
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when is fenoldopam used?
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htn emergencies
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minoxidil and diazoxide have the same moa, what is it?
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open K+ channels (therefore causing hyperpolarization making it difficult to achieve an action potential, therefore making it extremely difficult to contract the smooth muscle of the artierioles)
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which vasodilator is good for insulinomas?
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Diazoxide is used for insulinomas because it blocks insulin release. Remember, the SE of vasodilators are reflex SYMPATHETICS and Na/H20 retention. The symapthetic effect will decrease the release of insulin.
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which vasodilator works not only at arterioles, but VEINS too?
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sodium nitroprusside
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uh oh, you gave too much sodium nitroprusside, what do give them?
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sodium thiosulfate
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which vasodilator has caused metheglobinemia?
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sodium nitroprusside
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Ca Channel blockers (verapamil, diltiazem, dihydropyridines) are also used in HTN management. What type of channels do they block?
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L type Ca channels
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What are the three most common side effects of Ca Channel blockers (verapamil, diltiazem, dihydropyridines)?
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constipation, edema, HA
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which ca channel blocker is the greatest cardiac depressant, therefore CONTRAINDICATED in CHF pts?
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Verapamil
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What are the 4 main side effects of ACE inhibitors (captopril, enalapril)
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cough
high potassium teratogen RENAL FAILURE |
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what enzyme do ACE blockers block?
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peptidyl dipeptidase
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Is captopril or enalapril good for pts w/ chronic kidney disease, ischemic heart disease, diabetes?
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Enalapril
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What type of drugs are those ending in "TAN"?
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angiotensin receptor blocking agents
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can you use a "tan" drug/ angiotensin receptor blocking agent in preganancy?
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no
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