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Which antiarrhythmic drug has the adverse side effect of blue skin discoloration caused by iodine accumulation in the skin? |
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What unique adverse side effect is associated with amiodarone? |
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Definition
blue skin discoloration caused by iodine accumulation in the skin |
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A 66-year-old man had a myocardial infarct. Which one of the following would be appropriate prophylactic antiarrhythmic therapy? A. Lidocaine. B. Metoprolol. C. Procainamide. D. Quinidine. E. Verapamil. |
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Suppression of arrhythmias resulting from a reentry focus is most likely to occur if the drug: A. Has vagomimetic effects on the AV node. B. Is a β-blocker. C. Converts a unidirectional block to a bidirectional block. D. Slows conduction through the atria. E. Has atropine-like effects on the AV node. |
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A 57-year-old man is being treated for an atrial arrhythmia. He complains of headache, dizziness, and tinnitus. Which one of the following antiarrhythmic drugs is the most likely cause? A. Amiodarone. B. Procainamide. C. Propranolol. D. Quinidine. E. Verapamil. |
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A 58-year-old woman is being treated for chronic suppression of a ventricular arrhythmia. After 2 months of therapy, she complains about feeling tired all the time. Examination reveals a resting heart rate of 10 beats per minute lower than her previous rate. Her skin is cool and clammy. Laboratory test results indicate low thyroxin and elevated thyroid-stimulating hormone levels. Which of the following antiarrhythmic drugs is the likely cause of these signs and symptoms? A. Amiodarone. B. Procainamide. C. Propranolol. D. Quinidine. E. Verapamil. |
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Term
Which form of drug administration is subject to first pass metabolism?
a. sublingual b. oral c. intravenous d. intramuscular e. transdermal |
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