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Test Code Billings Clinic: 4012 Lactate Dehydrogenase (LDH), Plasma

Performing Laboratory

Billings Clinic Laboratory:  Chemistry

Useful For

  • 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

L-Lactate/NAD to NADH/ Calibrated/ 37°C / bichromatic rate

Specimen Requirements

Submit only 1 of the following specimens:

Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Plasma

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 1.0 mL of heparinized plasma frozen.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 1.0 mL of serum frozen

Storage/Stability

Specimen Type Temperature Time
Plasma, Serum Ambient 7 days
  Refrigerated (preferred) 4 days
  Frozen 42 days

 

Reject Due To

  • Hemolysis

Reference Values

Males: 87 - 241 U/L

Females: 84 - 246 U/L

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

83615 - Lactate dehydrogenase (LD), (LDH)

LOINC Code Information

Reporting Name LOINC Code
LDH 14804-9