Homocyst(E)Ine, Plasma (LABCORP)

Test Code
99901000986


Alias/See Also
LAB93: Homocysteine | LABCORP EAP: 706994


CPT Codes
83090x1

Preferred Specimen
LABCORP LAB: LAVENDER TOP-EDTA (Room Temperature) Min Vol: 1


Other Acceptable Specimens
LABCORP LAB: YELLOW TOP: (Room Temperature) Min Vol: 1
LABCORP LAB: MICRO LAVENDER- EDTA: (Room Temperature) Min Vol: 1
LABCORP LAB: GREEN TOP- NAHEP: (Room Temperature) Min Vol: 1
LABCORP LAB: MICRO YELLOW: (Room Temperature) Min Vol: 1
LABCORP LAB: Serum Separator Tube: (Room Temperature) Min Vol: 1
LABCORP LAB: RED TOP - PLAIN: (Room Temperature) Min Vol: 1


Instructions
Adults: 3 mL red-top tube *Pediatric minimum: 1 red-top microtainer*


Transport Temperature
Specimen: Serum or plasma Volume: 0.5 mL Minimum Volume: 0.3 mL (Note: This volume does not allow for repeat testing.) Container: Red-top tube, sodium heparin tube, potassium (EDTA) tube, or lithium (heparin) tube. Do not use a gel-barrier tube. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. Collection: Separate serum from cells within 45 minutes of collection and transfer to a plastic transport tube. Separate plasma immediately and transfer to a plastic transport tube for shipment to the laboratory. Storage Instructions: Room temperature Stability: Room temperature: 14 days Refrigerated: 7 days Frozen: 4 weeks Causes for Rejection: Hemolyzed samples; gel separator tubes; clotted specimen; samples not separated from blood cells.


Report Available
LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min



Last Updated: March 6, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.