Conduction defects will most likely be an adverse associated with the use of: A. verapamil (Isoptin) B. nifedipine (Adalat CC) C. diltiazem (Cardizem) D. felodipine (Plendil) Correct Answer: A. verapamil (Isoptin). Verapamil (Isoptin) has the strongest chronotropic effect and will cause a delay in conduction at the… Read More »
Which of the following calcium channel blockers has the most potent peripheral smooth muscle dilator effect? A. diltiazem (Cardizem) A. diltiazem (Cardizem) B. nifedipine (Adalat CC) C. nimodipine (Nymalize) D. verapamil (Calan) Correct Answer: B. nifedipine (Adalat CC) Nifedipine has the strongest peripheral smooth muscle dilator effect of all the… Read More »
Which of the following adverse reactions is found more often in volume-depleted elderly clients? A. Bradycardia B. Conduction defects C. Ankle edema D. Hypotension Correct Answer: D. Hypotension Hypotension is more likely to occur in the elderly. Vital signs can be a key assessment in volume status.… Read More »
Which of the following calcium channel blockers is used to counteract or prevent cerebral vasospasm? A. verapamil B. nimodipine C. nifedipine D. felodipine Correct Answer: B. nimodipine Nimodipine is given in the neurologic client to prevent cerebral vasospasm. Nimodipine should be given to patients with no neurological… Read More »
Which of the following effects of calcium channel blockers causes a reduction in blood pressure? A. Increased cardiac output. B. Decreased peripheral vascular resistance. C. Decreased renal blood flow. D. Calcium influx into cardiac muscles. Correct Answer: B. Decreased peripheral vascular resistance. One of the effects of… Read More »
Jason James is taking ß blockers, all of the following should be included in his assessment except: A. Pulmonary function tests B. Baseline ECG C. Glucose level D. Blood pressure Correct Answer: A. Pulmonary function tests Unless the client has a history of pulmonary disease and pulmonary function… Read More »
Routine laboratory monitoring in clients taking ß blockers should include: A. Sodium B. Glucose C. Thyrotropin D. Creatine phosphokinase Correct Answer: B. Glucose ß blockers influence glucose metabolism. Beta-3 receptors induce the breakdown of fat cells and are less clinically relevant at present. Blockade of these receptors… Read More »
Competitive antagonism of which of the following occurs at ß receptor sites? A. Catecholamines B. Adrenergic sites C. Acetylcholine D. Norepinephrine Correct Answer: A. Catecholamines Catecholamine receptor sites are blocked by the action of ß-blocking agents. Both epinephrine and norepinephrine modulate metabolism to increase blood glucose levels… Read More »
The action of medication is inotropic when it: A. Decreased afterload. B. Increases heart rate. C. Increases the force of contraction. D. Is used to treat CHF. Correct Answer: C. Increases the force of contraction. Inotropic drugs increase the force of contraction. Preload, not afterload, is decreased.… Read More »
ß blockers should be avoided in which of the following conditions? A. Bronchoconstriction B. Hypertension C. Angina D. Myocardial infarction Correct Answer: A. Bronchoconstriction ß blockers should be avoided in bronchoconstrictive disease. Traditionally, beta-blockers have been contraindicated in asthmatic patients. However, recommendations have aligned for allowing cardio-selective… Read More »