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Test Code LABF Lactate, Body Fluid

Useful For

Aid in differentiating between bacterial and viral meningitis


Aid in identifying increased glycolysis or hypoxia associated with bacterial meningitis, cerebral infarction, cerebral arteriosclerosis, intracranial hemorrhage, hydrocephalus, traumatic brain injury, cerebral edema, epilepsy, and inborn errors of metabolism

Method Name

Photometric, Lactate Oxidase/Peroxidase (Vitros Dry Slide)

Reporting Name

Lactate, BF

Specimen Type

Body Fluid

Specimen Required

Specimen Type: Spinal fluid

Container/Tube: Sterile container

Specimen Volume: 1 mL

Collection Instructions:

1. Centrifuge to remove any cellular material.

2. Indicate specimen source. Spinal fluid is the only acceptable source.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Body Fluid Frozen (preferred) 30 days
  Refrigerated  14 days

Reference Values

Not applicable

Day(s) and Time(s) Performed

Monday through Sunday, Continuously

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
LABF Lactate, BF 14165-5


Result ID Test Result Name Result LOINC Value
LACBF Lactate, BF 14165-5
FLD19 Fluid Type 14725-6

Testing Algorithm

See Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm in Special Instruction.


If not ordering electronically, complete, print, and send an Inborn Errors of Metabolism Test Request (T798) with the specimen.