Laboratory Medicine

Test catalogue

Calcium, 24hrs Urine
Test Name Calcium, 24hrs Urine
Specimen Type / Requirements Container Type = 24 hour plain container bottle Minimum Testing Volume = 5mL urine from mixed urine collection
Specimen Handling Collection Instructions: 24h urine collected in metal-free container without preservative and kept refrigerated or on ice during collection. Ensure collection bottle is labelled correctly. Keep the collected urine refrigerated if possible and return to lab ASAP. Write your "start" and "end" date and time of collection on the collection label or requisition. Avoid mineral supplements for 5 days. Laboratory Staff Instructions: Adjust pH to 1.5 – 2.0 with 6 N HCl before removing and aliquot for storage and analysis. Aliqout 3mL from mixed urine collection and Centrifuge. Stability: Stable for 48 h at room temperature, refrigerated 4 days and for 3 weeks at -15 to -20°C. Transportation: Transport at room temperature ASAP. Send sample as soon as possible. Sample Rejection Criteria: Unlabeled, leaking or samples of non sufficient quantity.
Required Documentation
Turnaround Time (TAT) 1 day	Test Utilization
Reference Value 0.0 – 6.20 mmol/d
Test Code 24CA	Methodology Spectrophotometric
Testing Location SMH-Biochemistry	Other Information Last Updated: February 24, 2020

Calcium, 24hrs Urine

Test Name

Calcium, 24hrs Urine

Specimen Type / Requirements

Container Type = 24 hour plain container bottle

Minimum Testing Volume = 5mL urine from mixed urine collection

Specimen Handling

Collection Instructions: 24h urine collected in metal-free container without preservative and kept refrigerated or on ice during collection. Ensure collection bottle is labelled correctly. Keep the collected urine refrigerated if possible and return to lab ASAP.

Write your "start" and "end" date and time of collection on the collection label or requisition. Avoid mineral supplements for 5 days.

Laboratory Staff Instructions: Adjust pH to 1.5 – 2.0 with 6 N HCl before removing and aliquot for storage and analysis. Aliqout 3mL from mixed urine collection and Centrifuge.

Stability: Stable for 48 h at room temperature, refrigerated 4 days and for 3 weeks at -15 to -20°C.

Transportation: Transport at room temperature ASAP. Send sample as soon as possible.

Sample Rejection Criteria: Unlabeled, leaking or samples of non sufficient quantity.

Required Documentation

Turnaround Time (TAT)

1 day

Test Utilization

Reference Value

0.0 – 6.20 mmol/d

Test Code

24CA

Methodology

Spectrophotometric

Testing Location

SMH-Biochemistry

Other Information

Last Updated: February 24, 2020