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Test Code LD Lactate Dehydrogenase (LDH), Serum

Testing Algorithm

For more information see Multiple Myeloma: Laboratory Screening

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Necessary Information


Patient's age is required.



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Ambient (preferred) 7 days
  Frozen  30 days
  Refrigerated  48 hours

Reference Values

1-30 days: 135-750 U/L

31 days-11 months: 180-435 U/L

1-3 years: 160-370 U/L

4-6 years: 145-345 U/L

7-9 years: 143-290 U/L

10-12 years: 120-293 U/L

13-15 years: 110-283 U/L

16-17 years: 105-233 U/L

≥18 years: 122-222 U/L

Day(s) Performed

Monday through Sunday

CPT Code Information

83615

Clinical Information

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

Report Available

Same day/1 to 3 days

Reject Due To

Gross hemolysis Reject

Method Name

Photometric Rate Reaction