An 82-year-old woman with moderate dementia is found to have a serum corrected calcium of 2.88 mmol/L. She has become increasingly confused and drowsy...

Question

An 82-year-old woman with moderate dementia is found to have a serum corrected calcium of 2.88 mmol/L. She has become increasingly confused and drowsy over 3 days. She is dehydrated. Her PTH is suppressed at 0.4 pmol/L (normal 1.6-6.9). She has a history of breast cancer treated 5 years ago. What is the MOST likely cause of her hypercalcaemia?

Accepted Answer

Malignancy-related hypercalcaemia (bone metastases or humoral hypercalcaemia)

Answer

Primary hyperparathyroidism

Answer

Vitamin D excess

Answer

Thiazide diuretic effect

Answer

Sarcoidosis

uk-dgm MCQ (SBA): Malignancy-Related Hypercalcaemia