Calcium excretion index

Sample type: Serum and Urine

Test name: Calcium excretion index

Condition / Indication: Endocrine, FBH, FHH, primary hyperparathyroidism.

Special precautions & notes: Paired serum sample required for calcium and creatinine. Urine sample should be fasted, second voided sample in the morning.

Reference range: Calcium excretion index <22umol/L glomerular filtrate during hypercalcaemia indicates possible familial hypocalciuric hypercalcaemia (FHH).

Container: Serum (Gold top) and Urine plain 5ml (Beige top)

Ideal volume (mL): 5 mL

Referred outside NBT for analysis? No

Discipline: Clinical Biochemistry

Section: Automated Laboratory

Turnaround time: 3 days