Sign in →

Test Code CSF LA CSF, Lactic Acid

Aliases

Lactic Acid CSF

Patient Preparation

No special patient preparation required

Special Collection Instructions

Transport to lab as soon as possible

Collection Method

Lumbar puncture or CSF shunt

Minimum Volume

  • Adults: 0.5 ml
  • Pediatric: 0.4 ml

Container

Sterile CSF Tube

Preferred Specimen

Sterile CSF Tube

Acceptable Specimens

  • Sterile CSF Tube
  • Sterile Urine Cup

Reference or Target Ranges

1.1 – 2.4 mmol/L

Reportable Units

mmol/L

Critical Value

>3.9 mmol/L

Reasons for Rejection



<!-- Rejection-->
Hemolysis Threshold
 No known interference
Icterus Threshold
 No known interference
Lipemia Threshold
 No known interference
Other
 QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability



<!-- Stability -->
Ambient
 8 hours
Refrigerated (4°C to 8°C)
 14 days
Frozen(-40°C to 0°C)
 Not listed

Performance Information



<!-- Performance information -->
Days and Time Performed
 24/7
Expected Turn Around Time
 Stat: 1 hour
Routine: 4 hours
Stat Availabilty
 Yes
Performing Bench
 UH Chemistry, WCH Chemistry
Methodology/Method Description
 Roche Cobas – Colorimetric assay

Additional Information/Important Notes

If specimen is bloody, supernatant should be removed from red cells ASAP.

CPT Codes

83605