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Test Code LAB93 Homocysteine, Total, Plasma

Important Note

Tube must be kept on ice.  

Missouri Baptist Medical Center Note:

This test is stable in a gel tube at ambient temp for 24 hours – provided that the tube is spun within 1 hour.

Additional Codes

LAB93

Methodology

Enzymatic

Literature References:

Package Insert: Homocysteine HCYS. Roche Corporation 2019/12.

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Mint green (Lithium Heparin)

Specimen Volume: Full tube

Additional Information: Forward immediately on wet ice.

 

Missouri Baptist Medical Center Note:

This test is stable in a gel tube at ambient temp for 24 hours – provided that the tube is spun within 1 hour.

Reference Values

0.0-15.0 mcmol/L

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt

Test Classification and CPT Coding

83090

Additional Information

For BJH Laboratory Use Only
Alternate Tube:

1 dark green-top (lithium heparin) tube

1 Lavender top (EDTA)
1 red-top tube
Separator gel tube is acceptable

Analyte Stability:

See analyte stability chart

Laboratory Processing Instructions:

Test performed in BJH Core lab. Specimen should be received on ice but room temperature is acceptable if received within 1 hr of collection. Samples are processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.

LOINC Code Information

Name LOINC Code
Homocysteine, Total, Plasma 13965-3