A patient with hypercalcaemia of malignancy has a calcium of 3.4 mmol/L. What is the first-line treatment?

Answer and explanation

Correct answer: B. Intravenous normal saline, followed by a bisphosphonate

  1. Step 1: Hydration lowers calcium, and bisphosphonates block bone resorption.
Answer
Intravenous normal saline, followed by a bisphosphonate.
Why not the others: Calcium, vitamin D and thiazides raise calcium.

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