KROK 1 2020 – Question 22 · KROK (Medicine) · Pathophysiology
A patient was diagnosed with a parathyroid tumor. He has generalized fibrous osteodystrophy and periodic attacks of renal colic. Ultrasound detected small stones in the kidneys. What is the most likely cause of kidney stone formation?
- A. Hyperuricemia
- B. Hypercholesterolemia
- C. Hypercalcemia
- D. Hyperphosphatemia
- E. Hypocalcemia
Hint
Follow the effect of parathyroid hormone excess on bone, gut and kidney, and ask which blood-level change raises the urinary concentration of stone-forming ions.
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