Test Code CO2, Total CO2, Total
Abbrev
CO2
Storage Temperature
R (2-8ºC)
ASTM/HL7/SDF 1
SQ=CO2
EPIC=LAB55
Instrument/Location
Beckman DXC 700 AU
Specimen Requirements
Specimen
Type: Serum or Plasma (Lithium Heparin)
Container/Tube
Type: Gold Top or Lt. Green Top.
Collection
Instructions: Draw tube and label appropriately.
Allow Gold top tubes to clot for 30 minutes. Spin tubes within
2
hours.
Note: Hemolyzed Specimens
are
not acceptable.
Specimen Transport Temperature
Spun tube/Refrigerated
Reference Values
20-32 mmol/L
Critical Values: <12 mmol/L or >45 mmol/L
Methodology
pH Rate of Change
Specimen stability/Retention time
7 days refrigerated