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St. Michael's Hospital Laboratory
Test Directory


Index:

LACTIC ACID

Order Name LA
Athena Orderable:
Lactic Acid-S [amgw]
Revision Date 09/30/2021
Test Name Methodology LOINC Code
LACTIC ACID
2524-7 
SPECIMEN REQUIREMENTS
Instructions
Draw WITHOUT tourniquet and hand-clenching
Whole blood must be run within 30 minutes of collection - if cannot be run w/in 30 minutes, centrifuge to separate plasma: Sample good on spun PST up to 30 min or 8 hours if separated into an aliquot tube and frozen.
 
GENERAL INFORMATION
Testing Schedule 24 hrs 
Rejection Criteria Specimens with hemolysis are unacceptable. 
Notes **REFLEX PROTOCOL**
Any lactic acid with a result >2.0 will automatically generate ONE repeat test 3 hours from the first.
If the reflexed lactic acid is >2.0, a third is NOT reflexed.
The provider would need to reorder as needed and the protocol begins again.
Test Aliases L-lactate
CPT Code(s) 83605
Lab Section Laboratory - Manual Bench