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Test Code LAB55 Bicarbonate (HCO3)/Carbon Dioxide (CO2), Plasma or Serum

Reporting Title

Bicarbonate (CO2)

Methodology

Roche Diagnostics, Enzymatic: RMH, BH, DH, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC, HMH, SH

This test measures bicarbonate (HCO3).

Useful in diagnosis and treatment of acid-base imbalance in the respiratory or metabolic system.

Performing Laboratory

OhioHealth Laboratory Services - RMH, BH, DH, DMH, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMH, SH, WECC Core Laboratories

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated. 

Note:

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

 

Alternate: 

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated. 

Note:

1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Specimen Stability Information:

Stable several days refrigerated when separated from erythrocytes and stored capped tightly;

6 months frozen

Specimen Transport Temperature

Refrigerate/Ambient OK/Frozen NO

Reference Values

Males:                                            
0-3y          17-25mmol/L         
4-5y          19-27
6-7y          20-28
8-17y        21-29

≥18 y        21-32


Females:
0-3y           18-25
4-5 y          19-26
6-7 y          20-27
8-9 y          21-28

≥10 y         21-32

SIEMENS USERS

ALL AGES: 21-32

Critical values  <10 mmol/L or >40 mmol/L

Alerting category: Always called within 1 hour   

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

82374