Days Set Up
Daily, 24 hours
Analytic Time

15 minutes

Soft Order Code

Test Updated:


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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

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

Gem 3500 blood gas analyzers
Ph : Ion selective electrodes, potentiometric
pCO2 : Potentiometric gas permeable membrane
Lactate : Amperometric electrode

Test Usage
Reference Range

Venous Lactate 0.5 - 2.2 mmol/L
Venous PH 7.32 - 7.42
Venous CO2 41 - 51 mmHg

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

Specimen Requirements

Red Top Tube
Normal Volume
1.5 mls whole blood in a collection tube
Minimum Volume
150 ul's is absolute minimum

Billing Information

CPT Code
82803, 83605
Pro Fee Code
pH PHVCL 2746-6 , pCO2 PCOCL 2021-4 , Lactate LACCL 2519-7

Have More Questions?

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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.