Test_Prep
USMLE · Question #296
A 42-year-old female comes to the emergency department with shortness of breath and palpitations. An ECG is obtained which reveals sustained ventricular arrhythmias which are found to be unresponsive
The correct answer is D. blocking potassium channels. See the full explanation below for the reasoning.
Question
A 42-year-old female comes to the emergency department with shortness of breath and palpitations. An ECG is obtained which reveals sustained ventricular arrhythmias which are found to be unresponsive to several medications. The attending physician finally prescribes bretylium. Bretylium works by
Options
- Aacting as a magnesium analog
- Bblocking beta-1 receptors
- Cblocking calcium channels
- Dblocking potassium channels
- Eblocking sodium channels
How the community answered
(39 responses)- A8% (3)
- B3% (1)
- C15% (6)
- D72% (28)
- E3% (1)
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