Autonomic Pharmacology USMLE Step 1 Practice Question
A 67-year-old man is evaluated 2 days after open colectomy because he has suprapubic discomfort and inability to void. His temperature is 37.1°C, blood pressure is 128/76 mmHg, and heart rate is 82/min. His abdomen is mildly distended, and bedside ultrasound shows a markedly enlarged bladder containing approximately 600 mL of urine. Digital rectal examination reveals a normal-sized prostate. He has no history of glaucoma, asthma, or benign prostatic hyperplasia. Which of the following drugs is most appropriate to stimulate detrusor contraction in this patient?
Answer choices
- ATamsulosin
- BOxybutynin
- CAtropine
- DBethanecholCorrect answer
- EPhenylephrine
- FNeostigmine
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