Pharm Study Guide (Calcium Channel Blockers) Ch 45 Questions and Correct Answers

Calcium channel blockers (CCBs) lower BP by __________ Vasodilation CCBs differ from nitrates in that they do not cause vasodilation of ___________ Veins (venous system) Dihydropyridine CCBs primarily affect _________ Arterioles The three effects of the CCBs verapamil and diltiazem on the heart are to _____________, ___________, and ____________ Reduce force of contraction; slow heart rate; suppress conduction through the AV node The suffix of the generic name of dihydropyridine CCBs is _______ -pine In addition to assessing BP, what is the priority assessment before administering diltiazem (Cardizem)? Apical pulse The lowering of BP and improvement of arterial blood flow to the heart counteract the negative effects of slowing and diminishing the force of the heartbeat caused by verapamil (Calan) True The nurse is caring for a patient who is scheduled to receive verapamil (Calan) and atenolol (Tenormin), a beta1 adrenergic blocker, at 0900. It is important for the nurse to assess for what critical adverse effects based on the combination of these 2 drugs before administration? Crackles or pulmonary edema, shortness of breath, and weight gain of 3 lbs in 24 hours The drop in BP produced by the CCB activates baroreceptors and stimulates the sympathetic nervous system. Which of these CCBs is most likely to have the adverse effect of reflex tachycardia? Nifedipine (Procardia) The nurse is caring for a patient who is scheduled to receive verapamil (Calan SR) 180 mg and atenolol (Tenormin) 50 mg at 0900. The patient has had a gastric tube (G tube) inserted, and drugs are to be administered via the tube. Which action should the nurse take before administering these 2 drugs? Consult the prescriber