A 61-year-old woman has repeated calcium levels of 11.4 mg/dL found during routine testing. PTH is elevated, creatinine is normal, and

Question

A 61-year-old woman has repeated calcium levels of 11.4 mg/dL found during routine testing. PTH is elevated, creatinine is normal, and 25-hydroxyvitamin D is sufficient. Which of the following is the most likely diagnosis?

Accepted Answer

Primary hyperparathyroidism

Answer

Milk-alkali syndrome

Answer

Vitamin D intoxication

Answer

Hypoparathyroidism

Answer

Pseudohypoparathyroidism

Primary hyperparathyroidism — USMLE Step 3 MCQ

A 61-year-old woman has repeated calcium levels of 11.4 mg/dL found during routine testing. PTH is elevated, creatinine is normal, and 25-hydroxyvitamin D is sufficient. Which of the following is the most likely diagnosis?