Nursing Pharmacology: Antihypertensive
Pharmacology Practice Questions
Click on the correct answer.
Physiological responses associated with rapid increases in BP:
- excitation of the vagal centers
- positive inotropic effects
- positive chronotropic effects
- A & C
- B & C
Hemodynamic responses in anesthetized patients who had been receiving antihypertensive drug treatment:
- increased venous return cause by positive-pressure ventilation
- excessive responses associated with body position changes
- both
- neither
Areas of concern for administration of anesthetics to patients treated with antihypertensive drugs:
- orthostatic hypotension
- increased sensitivity to indirect-acting sympathomimetic agents
- altered physiological responses to sympathomimetic drugs
- A & C
- A, B & C
Antihypertensive drug treatment should be maintained perioperatively:
- true
- false
Principal classes of diuretics used in management of hypertension:
- loop diuretics
- thiazide diuretics
- potassium-sparing diuretics
- B & C
- A & C
Probable mechanistic bases for reduced blood pressure initially-when thiazides are used
- reduced vascular resistance
- reduction in extracellular volume
- reduction in cardiac output
- B & C
- A, B & C
Site of action of thiazide diuretics:
- sodium channel blockade in late distal tubule and collecting duct
- mineralocorticoid receptors
- sodium, chloride synport transporter at the distal convoluted tubule
- loop of Henle
Potassium sparing diuretic:
- bumetanide (Bumex)
- chlorothiazide (Diuril)
- amiloride (Midamor)
- mannitol (Osmitrol)
- acetazolamide (Diamox)
Example(s) of centrally-acting sympatholytics:
- hydralazine (Apresoline)
- diltiazem (Cardiazem)
- guanabenz (Wytensin)
- nitroprusside sodium (Nipride)
- mecamylamine (Inversine)
Adverse effect(s) associated with autonomic ganglionic blockade:
- bladder dysfunction
- xerostromia
- blurred vision
- paralytic ileus
- all of the above
Relatively common use for ganglionic blocking drugs
- management of moderate hypertension
- treatment of paralytic ileus
- to reduce heart rate
- hypertension associated with dissecting aortic aneurysm
- renovascular stenosis
Adrenergic nerve blockers -- antihypertensive agents:
- reserpine
- guanethidine (Ismelin)
- guanadrel (Hylorel)
- B & C
- A, B & C
Adverse effects associated with guanethidine and guanadrel:
- hypotension (symptomatic)
- male sexual dysfunction
- diarrhea
- A & C
- A, B & C
Cardioselective beta adrenergic receptor blockers mainly affect this receptor subtype:
- beta1
- beta2
Selective beta1 blocker(s):
- atenolol (Tenormin)
- propranolol (Inderal)
- acebutolol (Sectral)
- A & C
- A, B & C
Beta-blocker with some intrinsic sympathomimetic properties:
- propranolol (Inderal)
- metoprolol (Lopressor)
- pindolol (Visken)
- esmolol (Brevibloc)
- none of the above
Beta-blocker that might be preferable in a patient with insulin-dependent diabetes:
- propranolol (Inderal)
- timolol (Blocadren)
- atenolol (Tenormin)
- pindolol (Visken)
Antihypertensive properties of beta-blockers may be reduced by concurrent administration of nonsteroidal anti-inflammatory drugs.
- true
- false
Principal mechanisms by which beta adrenergic receptor blockade decreases BP:
- vasodilation-- arteriolar
- vasodilation -- venular
- reduced heart rate and reduced myocardial contractility
- blockade of angiotensin II receptors
- decreased central sympathetic outflow
Effect of beta adrenergic blockers on renin levels:
- increase
- decrease
- no effect
Effect of beta adrenergic blockers on angiotensin II levels:
- increase
- decrease
- no effect
Adverse effect(s) associated with beta-adrenergic blockers:
- decreased blood triglyceride levels
- impotence
- bronchospasm
- B & C
- A, B & C