Days Set Up
Daily, 24 hours
Analytic Time

15 minutes

MiChart Code
Blood Gas, Adult UH, Arterial (ABGA) / Blood Gas, Adult UH, Venous (ABGV) / CRRT circuit Ionized Ca, Adult UH (CRRTU) / SVO2 O2 calibration (ASVO2)
Soft Order Code

Test Updated:


Blood Gas, UH, Arterial
Cooximetry (Coox) (O2HB, COHB, METHB)
Lactate, Whole Blood
Glucose, Whole Blood
Blood Gases (pH, pCO2, pO2)
Methemoglobin Co-oximetry
Oxyhemoglobin Co-oximetry
Electrolytes, Whole Blood
Carboxyhemoglobin Co-oximetry
Blood Gas, Mott, Venous

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Radiometer Benchtop

Test Usage
Reference Range

Blood Gas Reference Ranges are available online at
*Reference ranges may change over time. Please refer to the original patient report when evaluating results.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Please indicate specific testing to be performed (see Additional Information). Collect specimen in an electrolyte balanced heparinized syringe (available from hospital stores). Remove all air bubbles and then mix sample to prevent clotting. Remove needle and cap syringe end with an airtight cap. Place a label on the syringe that was generated through MIChart. Keep specimen at room temperature and transport specimen in a sealed bio hazard bag to the laboratory within 30 minutes of collection.

Collection Offsite

Because of delays in transit, this test is not recommended for use by MLab clients. CAP requires all blood gas specimens to be analyzed within 30 minutes of collection. To contact the Adult Blood Gas Laboratory call 734-936-5249. Specimens cannot be collected at MLabs Blood Drawing sites.

Normal Volume
2 - 3 mL whole blood
Minimum Volume
1.5 mL whole blood

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.