Sign in →

Epic Test Code LAB55 Carbon Dioxide: Serum

Performing Location(s)

BMC,CRH,LFH,HRK,OCH,FTT,FOX,FCC

Specimen Type

Serum or Plasma

Preferred Container

Gold or Red top tube

Alternate Container

Green top

Blood Tube Draw Volume

Min 50% draw volume  

Minimum Volume to Submit for Testing

0.5 mL Serum or Plasma

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Sample tubes should be centrifuged within 2 hours of collection 

Gold tops are stable in original tubes for 18 hours DO NOT ALIQUOT

Aliquot Red tops after centrifuging 

See Causes of Rejection for temperature requirements.

Transportation Needs

 Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Causes for Rejection

Mislabeled or unlabeled specimen

Less than 50% draw for Vacutainer tubes

>18 hours in gold top refrigerated
 > 24 hours aliquot refrigerated 
> 24 hours room temperature
No Add-ons

Hemolysis > 500 mg/dL HgB
Lipemia > 1000 mg/dL Trig
Bilirubin > 40 mg/dL Bili

Reference Values

Population Units Reference Range High Critical Value Low Critical Value
All Populations mmol/L 21-31 >45 <10

 

Available STAT

Yes

Days of Analysis

All

Additional Information

Additional Information:

Total carbon dioxide concentration may be lowered by as much as 6 mmol/L when uncapped specimens are exposed to the air for one hour

Underfilling of vacuatiners may account for low total carbon dioxide results of up to 3 mmol/L

Methodology

Beckman AU/Dx Series

CPT Code

82374

Last Updated

26-OCT-24 MS