Lactate, Whole Blood


Sunquest Code:LACTW  
Epic Code:LAB730Epic Name:Lactic Acid Whole Blood
Synonyms:Lactic Acid
Methodology:Lactate electrode
CPT Code:83605
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.2 mL
Container:Dry heparin syringe (Capillary (lithium heparin) gas tube, Green (lithium heparin) on ICE)
Collection Instructions:Collect without the use of a tourniquet or within 3 minutes of applying the tourniquet, but before releasing the tourniquet. Do not allow patient to clench/unclench hand; this builds up lactic acid. Deliver to laboratory immediately.
Causes for Rejection:Moderate hemolysis
Contraindications:Lack of acidosis is not a contraindication for this test.


Processing and Shipping

Specimen Processing:Analyze whole blood as soon as possible (ideally within 15 min.). If transport is required, centrifuge (ideally within 15 min.) at refrigerated temperature. Aliquot 0.2 mL, 0.1 mL minimum. Store on ice up to 24 hours; otherwise freeze immediately.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Chemistry  (Fairview Range - FRMC, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, UMMC NICU)


Interpretive

Critical Range:Greater than 3.9 mmol/L
Reference Range:0.7-2.0 mmol/L
Use:Identify lactic acidosis which characteristically presents as an increased anion gap metabolic acidosis.


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