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Test Compendium


Test Code

  • 6055

Test Synonym

  • Lactic Acid


  • 1 mL

Minimum Volume

  • 0.5 mL

Specimen Requirements

  • Plasma


  • Grey Top Tube


  • Refrigerated

CPT Codes

  • 83605
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 1 mL PLASMA

Additional Information

  • Keep gray-top tube on ice. Draw blood in gray-top tube. Mix well by gentle inversion at least six times. Return to ice bath to cool. Avoid hand-clenching and, if possible, avoid use of a tourniquet. A tourniquet with patient clenching and unclenching hand will lead to high potassium and lactic acid buildup from the hand muscles, and pH will decrease. It is best to avoid a tourniquet for electrolytes and lactic acid or to release it after blood begins to flow into tube. If the tourniquet is released before blood is drawn, wait about a minute before drawing. Within 15 minutes from draw, separate the plasma from blood by centrifugation for 10 minutes. Immediately transfer the plasma portion of the sample to a labeled plastic transfer tube. Avoid excessive forces that contribute to hemolysis.

Specimen Stability

  • AMBIENT: 14 days REFRIGERATED: 14 days FROZEN: 14 days