LACTATE DEHYDROGENASE

Message

Note: Add on testing for LDH will only be available within 24 hours after collection due to refrigerated storage.

Test Code

LDH

Alias/See Also

LD Total

CPT Codes
83615

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.5 mL

Other Acceptable Specimens

or 1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of plasma/serum and red cells.

Transport Temperature

Room temperature - deliver to lab ASAP
Refrigerate up to 24 hours

Specimen Stability

15-30°C ASAP (defer any stability questions to Gen Lab supervisory staff)

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis interferes

Methodology

Lactate to pyruvate @ 37°C

Setup Schedule

M, T, W, Th, F, Sa, Sun

Reference Range

140 - 271 U/L

**Pediatric Reference Ranges**
Age	Female Reference Ranges	Male Reference Ranges
0-14 days	256-1017 U/L	256-1017 U/L
15 days - <1 year	135-375 U/L	135-375 U/L
1- <10 years	159-266 U/L	159-266 U/L
10- <15 years	130-225 U/L	141-235 U/L
15- <19 years	107-207 U/L	107-207 U/L

Clinical Significance

Elevations are found in cardiac disease including myocardial infarction, liver diseases including cirrhosis and alcoholism, and infectious mononucleosis.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.