Posted Date
Effective Date
Update Type Reference range changed
Order Code LACT



Lactic Acid, Plasma

Order Code:                  LACT

Fee Code:                     20734 (CPT 83605)


Effective August 1, 2023, the Michigan Medicine Core Laboratory and point of care testing locations will lower the upper limit of the reference range for Lactic Acid from 2.2 mmol/L to 2.0 mmol/L to harmonize with sepsis SEP-1/CMS guidelines requiring actions to be taken when Lactic Acid is greater than 2.0. All other reporting for Lactic Acid, including critical value limits, will remain the same.


Reference Range:         0.5 – 2.0 mmol/L