Lactic Acid, Plasma

Test Code

585

CPT Code(s)

83605

Test Code

585

CPT Code(s)

83605

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Lactic Acid, Plasma - Lactic acid is the endproduct of the anaerobic metabolism of glucose. The blood lactic acid concentration is affected by its production in muscle cells and erythrocytes and its rate of metabolism in the liver. During exercise, blood lactate can increase up to ten times of normal levels.

Test Resources

None found for this test
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Test Details

Patient Preparation

Sample should be collected without the use of a tourniquet; avoid hand-clenching. If a tourniquet has been used, it should be released for one minute prior to drawing blood. Collected blood should be cooled on ice immediately and separated from the cells within 3 hours.

Methodology

Colorimetric

Reference Range(s)

0.4-1.8 mmol/L

LOINC® Codes, Performing Laboratory

Service Area must be determined

Patient Preparation

Methodology

Colorimetric

Reference Range(s)

0.4-1.8 mmol/L

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

2 mL frozen plasma from a gray-top tube

Minimum Volume

0.5 mL

Collection Instructions

The collected blood should be well-mixed and separated from the cells within 3 hours. Freeze plasma and ship frozen.

The assay manufacturer, Roche, notes that N-acetylcysteine, when administered in high concentrations (such as for treatment of acetaminophen overdose), can interfere with their assay for Lactate (Lactic Acid), leading to falsely low results.

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: 30 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Grossly icteric

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

2 mL frozen plasma from a gray-top tube

Minimum Volume

0.5 mL

Collection Instructions

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: 30 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Grossly icteric

Setup Schedule

Service Area must be determined

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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