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Hypercalcaemia Workup

Diagnosis & management principles

SmartNephro · Dr. Abbas Deeb

Educational support — not prescribing. Doses shown are reference values; verify locally. Don't delay treatment of severe/symptomatic hypercalcaemia for test results.

Enter available values

Core values

Total calcium

Albumin

Ionised Ca (optional)

Intact PTH

Phosphate (optional)

Kidney function (optional)

Optional further labs (if already known)

PTHrP

25-OH vitamin D

1,25-OH₂ vit D

24-h urine Ca

Clinical context

Symptomatic Known malignancy Granulomatous disease Family history hyperCa Onset < age 30 Immobilised

Medications / supplements

Thiazide Lithium Vitamin D Calcium Vitamin A

Enter at least calcium (± albumin) and PTH, then press Interpret.

Source: UpToDate — “Diagnostic approach to hypercalcemia” (Mar 2025) & “Treatment of hypercalcemia” (Jan 2026). Thresholds/doses are reference values; local ranges and protocols vary.
Developed by Dr. Abbas Deeb, Consultant Nephrologist — SmartNephro · © 2026