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USMLE · Question #524
USMLE Question #524: Real Exam Question with Answer & Explanation
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Question
A 33-year-old man undergoes a radical thyroidectomy for thyroid cancer. During the operation, moderate hemorrhaging requires ligation of several vessels in the left side of the neck. Postoperatively, serum studies show a calcium concentration of 7.5 mg/dL, albumin concentration of 4 g/dL, and parathyroid hormone concentration of 200 pg/mL. Damage to which of the following vessels caused the findings in this patient?
Options
- ABranch of the costocervical trunk
- BBranch of the external carotid artery
- CBranch of the thyrocervical trunk
- DTributary of the internal jugular vein
- ETributary of the left brachiocephalic vein
- FTributary of the right brachiocephalic vein
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