Alpha-adrenergic antagonists are used in the treatment of which of the following conditions?
  1. Cardiac arrhythmia, carcinoid syndrome
  2. Cardiogenic shock, postprandial hypertension
  3. Hypotension, cardiac arrhythmia
  4. Hypertension, pheochromocytoma, extravasation of tissue-toxic drugs
Explanation
Answer: D - Alpha-adrenergic antagonists are used to treat hypertension, pheochromocytoma, and extravasation of tissue-toxic drugs. Alpha-adrenergic antagonists decrease vascular tone, cause vasodilation, and decrease blood pressure.
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