Sign in →

Test Code LAB429 Acylcarnitines, Quantitative, Plasma

Performing Laboratory

St. Louis Children's Hospital

Last Reviewed

June 2024

Interpretive

Reference Range: See Acylcarnitine Reference Values
Critical Values: None established
Limitations: NA
Methodology: Electrospray Tandem Mass Spectrometry (ESI-MS/MS)

Specimen Requirements

Specimen Type: Blood

Container/Tube  
Preferred: Mint (Light) green-top (lithium heparin) Vacutainer
Acceptable: Green-top (Lithium Heparin) microtainer, Gold/Red SST Vacutainer, Plain, red-top Vacutainer, or DARK green-top (sodium heparin) Vacutainer

Collection Volume: 3.0 mL (minimum 0.6 mL) for Vacutainer

If collected in microtainer, container MUST be full.

Patient Preparation: None

Sample Rejection: Mislabeled or unlabeled specimens.

Special Instructions: Send to lab promptly.

Barnes-Jewish Hospital Note:

For non hospital patients, call Barnes Jewish Hospital Laboratory Customer Service at 314-362-1470 for STAT pick-up.

 

Send unsupn, 10-mL, green-top (sodium heparin) tube on wet ice.

Logistics

Day(s) Test Set Up: Monday-Friday

Cut-off time: 0430
Turnaround Time: 3-5 days
Lab Testing Section: Metabolic Genetics

Lab Dept

Core Lab

Additional Information

For SLCH Laboratory use only

Lab Processing instructions: Centrifuge specimen to separate, aliquot sample into a plastic conical tube and freeze. Label aliquot with specimen type.
Processed Volume: 1.0 mL (minimum 0.3 mL)
Analyte Stability:

Ambient: 1 hour
Refrigerated: NA

Frozen (processed): Indefinitely
NOTES: None

General Information

EPIC order name: Acylcarnitines  (EPIC Test # LAB429)
Cerner order name: Acylcarnitine
CPT Codes: 82017
LOINC Value: NA
Synonyms:  

Barnes-Jewish Hospital Additional Information:

For BJH Laboratory Use Only
Alternate Tube(s):

1 mint green-top (lithium heparin) tube

1 plain, red-top tube

Analyte Stability:

Specimen must be frozen within 4 hours; frozen specimen stable for 1 month.

Laboratory Processing Instructions:
BJH Chemistry will forward to the performing laboratory. Refrigeration of specimen during transport will slow the metabolism process, however, do not reject if specimen is not received on ice. Spin, separate, and freeze 1 mL (minimum volume: 0.2 mL) of heparinized plasma or serum in a plastic aliquot vial.