A 32-year-old woman comes to the emergency department with sudden-onset left flank pain and nausea. The pain radiates to the left groin and she is unable to find a comfortable position on the examination table. The pain is intermittent and waxes and wanes in severity. Temperature is 36.7 C (98 F), blood pressure is 140/90 mm Hg, and pulse is 92/min. She has mild tenderness to percussion over the left flank. Bowel sounds are hypoactive. Laboratory results are as follows: Which of the following is the most likely cause of this patient's current condition?

Question

A 32-year-old woman comes to the emergency department with sudden-onset left flank pain and nausea.  The pain radiates to the left groin and she is unable to find a comfortable position on the examination table.  The pain is intermittent and waxes and wanes in severity.  Temperature is 36.7 C (98 F), blood pressure is 140/90 mm Hg, and pulse is 92/min.  She has mild tenderness to percussion over the left flank.  Bowel sounds are hypoactive.  Laboratory results are as follows:  Which of the following is the most likely cause of this patient's current condition?

Quizplus · Accepted Answer

Eductional Objective: Most kidney stones are made of calcium salts and are idiopathic, but conditions that increase renal calcium excretion can increase the risk of stones.  Hyperparathyroidism is a common cause of recurrent kidney stones and is typically associated with mild hypercalcemia and hypophosphatemia.

A 32-Year-Old Woman Comes to the Emergency Department with Sudden-Onset