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Citrate, 24h Urine
Alternative Names/Synonyms
Citric Acid
Laboratory
Core Laboratory & Transfusion Medicine
Sub-section
Biochemistry
Specimen Type
Urine
Test Code
CITUT
Clinical Significance
Assessing risk of renal kidney stone formation, for which hypocitraturia is considered a risk factor.
Specimen Requirements (Sample Type)
Urine
Specimen Requirements (Volume (mL))
5 mL
Specimen Requirements (Tube Type)
24h Urine Collection Container (No Additive)
Collection Requirements
Collection Instructions
Sample Stability
Room Temperature
: N/A
Fridge
: 2 weeks @ 2-8°C
Freezer
: 7 weeks @ -20°C
Cause for Rejection
Specimen Acceptability and Transport Guidance
Instrument, Methodology
Roche cobas c 502, enzymatic
Test Availability
24 hours a day, 7 days a week
Routine Turnaround Time
5 - 7 days
Reference Ranges
See Table
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