Malignancy-related hypercalcaemia — SCE Endocrinology MCQ
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Correct answer: B — Intravenous 0.9% sodium chloride rehydration
Severe symptomatic hypercalcaemia needs urgent isotonic saline rehydration before antiresorptive therapy is considered. PTH suppression points away from primary hyperparathyroidism. Cinacalcet may help selected PTH-mediated disease but is not the first resuscitative step here.
Reference: Society for Endocrinology Hypercalcaemia Guidance; BNF