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Mayo Medical Laboratories

Mayo Clinic Laboratories

Test Code LAB6036 Amino Acids, Quantitative, Spinal Fluid

Performing Laboratory

St. Louis Children's Hospital

Last Reviewed

November 2024

Lab Dept

Metabolic Genetics

Specimen Requirements

Specimen Type: Cerebrospinal Fluid (CSF)

Container/Tube  
Preferred/Acceptable: 7.0 mL screw-capped, sterile, plastic CSF collection vial.
Collection Volume: 1.0 mL (minimum 0.3 mL)
Patient Preparation: None
Sample Rejection: Mislabeled or unlabeled specimens.
Special Instructions: Maintain sterility and forward promptly.

Barnes-Jewish Hospital Note:

Call Laboratory Medicine resident at digital pager 314-747-1320 for approval before obtaining the specimen.

Note: Laboratory Medicine resident approval is not required for medical genetics patients.

Interpretive

Reference Range:

Age-dependent

See Amino Acids CSF Reference Values  

Critical Values: None established
Limitations: NA
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Test Classification: This test was developed and its performance characteristics determined by St. Louis Children's Hospital Clinical Laboratory. It has not been cleared or approved by the U.S. Food and Drug Administration.

Additional Information

For SLCH Laboratory use only

Lab Processing instructions: Centrifuge specimen to separate and aliquot supernatant into a plastic, conical vial and freeze.
Processed Volume: 1.0 mL (minimum 0.3 mL) CSF
Analyte Stability:

Ambient: NA
Refrigerated: NA
Frozen: NA
Notes: Freeze specimen

General Information

EPIC order name: Amino Acids, CSF (EPIC Test # LAB6036)
Cerner order name: Amino Acids CSF
CPT Codes: 82139
LOINC Value: 
Synonyms:  

Logistics

Day(s) Test Set Up: Monday-Friday
Cut-off time: 0430
Turnaround Time: 5 days
Lab Testing Section: Metabolic Genetics

Barnes-Jewish Hospital Additional Information:

For BJH Laboratory Use Only

Laboratory Processing Instructions:
BJH Core Lab will forward to the performing laboratory. Send immediately to St. Louis Children’s Hospital Laboratory for testing.