Sign in →

Test Code LACS1 Lactate, Plasma


Ordering Guidance


This test does not measure D-lactate, an uncommon, often undiagnosed cause of lactic acidosis. If D-lactate testing is needed, order DLAC / D-Lactate, Plasma.



Necessary Information


Patient's age and sex are required.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Gray top (potassium oxalate/sodium fluoride)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.625 mL Plasma

Collection Instructions:

1. Draw at least 1 mL whole blood in a 2-mL collection tube or at least 2 mL whole blood in a 4-mL collection tube.

2. Centrifuge and aliquot plasma into a plastic vial.


Useful For

Diagnosing and monitoring patients with lactic acidosis

 

Screening high-risk patients for sepsis or septic shock

Reporting Name

Lactate, P

Specimen Type

Plasma NaFl-KOx

Specimen Minimum Volume

Plasma: 0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma NaFl-KOx Refrigerated (preferred) 14 days
  Ambient  8 hours

Reject Due To

Gross hemolysis Reject

Reference Values

0-2 months: ≤3.3 mmol/L

3-24 months: ≤3.1 mmol/L

25 months-17 years: ≤2.2 mmol/L

> or  18 years: 0.5-2.0 mmol/L*

 

*Further information regarding the adult clinical action limit is available:

Townsend SR, Phillips GS, Duseja R, et al. Effects of compliance with the early management bundle (SEP-1) on mortality changes among medicare beneficiaries with sepsis: A propensity score matched cohort study. Chest. 2022;161(2):392-406. doi:10.1016/j.chest.2021.07.2167

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days

Specimen Retention Time

2 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

83605

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LACS1 Lactate, P 2524-7

 

Result ID Test Result Name Result LOINC Value
LACS1 Lactate, P 2524-7