Q: Which of the following calcium channel blockers may be employed parenterally in the treatment of cardiac arrhythmias? I. verapamil (Isoptin, Calan) II. isradipine (DynaCirc) III. amlodipine (Norvasc)
Explanation: Verapamil (Calan, Isoptin) is a calcium channel-blocking agent used orally and parenterally in the treatment of cardiac arrhythmias. The other calcium channel-blocking agents listed are used in the treatment of angina pectoris and/or essential hypertension. Oral verapamil is also used for these indications.
Q: Effects expected as a result of inhaling the smoke of cannabis (marijuana) include I. decreased pulse rate II. perceptual changes III. vascular congestion of the eye
Q: Liotrix is a thyroid preparation that contains I. desiccated thyroid II. levothyroxine sodium III. liothyronine sodium
Explanation: Liotrix consists of a uniform mixture of synthetic levothyroxine sodium (T4) and liothyronine sodium (T3) in a ratio of 4:1 by weight. It is used in products such as Euthroid and Thyrolar as a thyroid hormone supplement.
Q: Which one of the following is NOT a pro- gestin?