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
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