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Test Code BLOD0979 MISC LAB (MAYO) Lactate Dehydrogenase (LD), Body Fluid

Important Note

This Mayo sendout test is only used for CSF.  LDH on sources other than spinal fluid may be performed in-house with test:

Do not use NBLD0339 LDH, CSF performed by Sanford Laboratories (Fargo).  It is not orderable for use by Bozeman and will be rejected.


Additional Codes

Mayo Test Code: LDBF

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Body Fluid

Necessary Information

Indicate specimen source.

Specimen Required

Collection Container/Tube: Sterile container

Submission Container/Tube: Plastic container

Specimen Volume: 1 mL

Collection Instructions: Centrifuge to remove any cellular material.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Body Fluid Ambient (preferred) 7 days
  Refrigerated  48 hours

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Test Classification

This test has been modified from the manufacturer’s instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


Reject Due To


Mild reject; Gross reject







Method Name



If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (

Useful For

Identification of exudative pleural effusions