Question

A 70-year-old woman presents with polyuria, polydipsia and nocturia. Serum sodium is 148 mmol/L, fasting glucose 5.0 mmol/L and serum calcium 2.70 mmol/L. Parathyroid hormone is elevated. What is the most likely diagnosis?

Accepted Answer

Primary hyperparathyroidism

Answer

Type 2 diabetes mellitus

Answer

Diabetes insipidus

Answer

Psychogenic polydipsia

Answer

Chronic kidney disease

Practice question

A 70-year-old woman presents with polyuria, polydipsia and nocturia. Serum sodium is 148 mmol/L, fasting glucose 5.0 mmol/L and serum calcium 2.70 mmol/L. Parathyroid hormone is elevated. What is the most likely diagnosis?