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Test Code LASF1 Lactic Acid, Spinal Fluid


Specimen Required


Specimen Type: Spinal fluid

Container/Tube: Sterile container

Specimen Volume: 1 mL

Collection Instructions: Centrifuge to remove any cellular material.


Useful For

Aid in differentiating between bacterial and viral meningitis

 

Aid in identifying increased anaerobic 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

Colorimetric

Reporting Name

Lactic Acid, CSF

Specimen Type

CSF

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
CSF Frozen (preferred) 60 days
  Refrigerated  24 hours
  Ambient  3 hours

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross OK

Icterus

NA

Other

NA

Reference Values

0-2 days: 1.1-6.7 mmol/L

3-10 days: 1.1-4.4 mmol/L

11 days-17 years: 1.1-2.8 mmol/L

>17 years: 1.1-2.4 mmol/L

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Analytic Time

Same day/1 day

Specimen Retention Time

1 week

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

83605

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LASF1 Lactic Acid, CSF 2520-5

 

Result ID Test Result Name Result LOINC Value
LASF1 Lactic Acid, CSF 2520-5