6 board-style questions on hyperparathyroidism in the PulseMD family medicine question bank, written against current guidelines with the reference cited on each question. Two free samples below; the full set with answers, explanations, and spaced review is free to start.
A 62-year-old postmenopausal woman is found to have a serum calcium of 11.2 mg/dL on routine blood work. She is asymptomatic. Repeat calcium is 11.0 mg/dL. Additional labs: intact PTH 98 pg/mL (normal 15-65), phosphorus 2.1 mg/dL (low), 25-hydroxyvitamin D 32 ng/mL (normal), creatinine 0.9 mg/dL. What is the most likely diagnosis?
A 55-year-old postmenopausal woman is found to have a T-score of -2.8 at the lumbar spine on DEXA scan. She has no history of fragility fractures. Her BMI is 22 kg/m², she does not smoke, and she drinks one glass of wine weekly. Laboratory evaluation reveals normal CBC, comprehensive metabolic panel, TSH, and 25-hydroxyvitamin D. However, 24-hour urine calcium is markedly elevated at 380 mg/day (normal <250 mg/day). Serum calcium is 10.8 mg/dL and PTH is 78 pg/mL (normal 15-65). What is the most likely endocrine cause of her osteoporosis?
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