Chloride, 24h Urine

Alternative Names/Synonyms	Cl
Laboratory	Core Laboratory & Transfusion Medicine
Sub-section	Biochemistry
Specimen Type	Urine
Test Code	CLU

Clinical Significance (If applicable)

Evaluating water, electrolyte, and acid-base status.

Specimen Requirements (Sample Type)

Urine

Specimen Requirements (Volume (mL))

0.5 mL

Specimen Requirements (Tube Type)

24h Urine Collection Container (No Additive)

Collection Requirements

Collection Instructions

Sample Stability

Freezer: N/A

Room Temperature: 7 days

Fridge: 7 days @ 2-8°C

Cause for Rejection

Sample collected in acidified container will be rejected.
Specimen Acceptability and Transport Guidance

Instrument, Methodology

Roche cobas ISE, indirect selective electrode

Test Availability

24 hours a day, 7 days a week

Routine Turnaround Time

3 hours

Reference Ranges

80 - 220 mmol/day

In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.

Laboratory Contact Information

416-586-4800 extension 4688