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You saw a 71-year-old white woman nursing home resident who was brought in by her daughter for a complete physical exam. Her complaints include a poor appetite, weight loss, cramps, and weakness. She was diagnosed with Crohn's disease 10 years ago but is not taking any medications. Five months ago she had a mammogram and flexible sigmoidoscopy, both of which were normal. Because her exam was normal, she was given a 1-month return appointment and sent for blood work.
At the end of the day, your lab calls to report a panic value of calcium of 1.4 mmol/L (normal range, 2.2 – 2.6 mmol/L) with an inorganic phosphate of 0.58 mmol/L (normal range, 0.8 – 1.5 mmol/L). She has a creatinine of 80 umol/L (normal range, 60 – 110 umol/L), albumin is 35 g/L (normal range, 37 – 49 g/L), and alkaline phosphatase is 250 U/L (normal range, 42-98 U/L). Which of the following diagnoses is compatible with these lab data?
A. Hypoparathyroidism
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B. Hypomagnesemia
C. Vitamin D deficiency
D. Renal failure
Answer
Tags:
MCQ, Endocrinology, Calcium homeostasis
Category:
Endocrinology MCQs
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