CARBON DIOXIDE, urine (087-0536)
Synonyms: CO2, urine
CPT 4 Code: 82374
Test Order Mnemonic: CO2 U
Lab: Clinical Chemistry
Request Form: Write in on Routine Chemistry Form 1
Collection: Random or 24-hour collection
Availability: Samples are received 24 hrs per day at
Sample Management, Room 5.136 McCullough.
Turnaround Time: Routine: 4 hours, STAT: 1 hour
Special Instructions: Timed collections must have
start date and time, finish date and time, and total volume on request form.
Specimen: Urine
Volume: 10 mL
Minimum Volume: 5 mL
Container: Plain tube or plastic cup with
tight-fitting lid
Reference Ranges: Random: < 5 mmol/L; 24 Hours:
< 5 mmol/24 hours
Test Method: Colorimetric
Reviewed/revised April 2007 by P. Harris
