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Lactic Acid
Test CodeLACTIC
Alias/See Also
LACTATE
CPT Codes
83605
Preferred Specimen
GRAY Tube On Ice Plasma
Minimum Volume
0.5 mL
Other Acceptable Specimens
GREEN Lithium Heparin Plasma On Ice
Instructions
Collect venous blood without use of tourniquet; Separate from cells within 15 minutes of collection.
Transport Container
GRAY Tube On Ice
Transport Temperature
On Ice
Specimen Stability
Room Temp: 8 Hours; Refrigerated: 7 Days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Not separated from cells within 15 minutes of collection
Methodology
Vitros 7600/3400
Reference Range
0.7-2.1 mmol/L; Critical Value: > 4.0 mmol/L
Clinical Significance
Lactate's clinical significance lies in its role as a crucial biomarker for tissue hypoperfusion (poor oxygen supply to tissues) and cellular energy failure, especially in critical illnesses like sepsis, shock, and trauma, where elevated levels signal severity, predict poor outcomes, and guide resuscitation by indicating impaired oxygen delivery or metabolism, with lactate clearance often more important than a single reading for assessing response to treatment.
Performed By
RFGH Laboratory
Performing Laboratory
RFGH Laboratory
