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Test Code LAB6 Lactate Dehydrogenase (LD), Serum

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic
LDH LAB6 LDH

 

Useful For/Utility

Investigation of a variety of diseases involving the heart, liver, muscle, kidney, lung, and blood

Monitoring changes in tumor burden after chemotherapy, although, lactate dehydrogenase elevations in patients with cancer are too erratic to be of use in the diagnosis of cancer.

Methodology

Lactate to Pyruvate (NADH)

Clinical Information

Lactate dehydrogenase (LD) activity is present in all cells of the body with highest concentrations in heart, liver, muscle, kidney, lung, and erythrocytes. Serum LD is elevated in a number of clinical conditions.

Specimen Requirements

Specimen Type: Serum

Container/Tube: Red top or serum gel

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Hemolyzed specimen is not acceptable.

2. Spin down, separate serum from cells within 2 hours of draw.

3. If plunger filters are used, immediate removal of serum is indicated unless an air gap can be created between the device and specimen.

Additional Information: Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate 5 days/Ambient 8 hours OK/Frozen NO

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Chemistry-

St. Joseph's - Brainerd Clinic Lab, St. Joseph's Medical Center Lab

Ashland Clinic Lab, SMDC Clinical Lab, Moose Lake

Ada Hospital Lab, Fargo Hospital Lab, Fosston Hospital Lab, Park Rapids Clinic Lab, South University Clinic Lab, St. Mary's - Detroit Lakes Hospital Lab

Test Classification and CPT Coding

83615

Reference Values

0 days-14 days: 309-1222 IU/L

15 days-1 year: 163-452 IU/L

1-9 years: 192-321 IU/L

Males 10-14 years: 170-283 IU/L

Females 10-14 years: 157-272 IU/L

15-18 years: 130-250 IU/L

Adult: 51-238 IU/L