Homocysteine

Specimen Container

Gold

Specimen Collection Type

Serum or Plasma

Minimum Volume To Collect (Ml)

2 mL

Pediatric Volume To Collect (Ml)

2 mL

Specimen Preparation

Separate < 1hr

Stability

Ambient Stability: 1 hour (whole bl, no ice) or 6 hrs (whole bl, w/ ice)
Refrig Stability: 2 weeks
Frozen Stability: 1 year

Preferred Transportation Temperature

REFRIGERATED

Performed

Sun-Sat

Reported

Same day

Methodology

Chemiluminescent Microparticle Immunoassay (CMIA)

Lab Department

Core

Testing Location

IHC

Synonyms

Total homocysteine, plasma or serum
homocystine
0099869

Test OR Panel

Test

Interferences

Avoid hemolysis

Misc Instructions

HANDLING!
Place on ice immediately. Centrifuge specimens within 1 hour of collection, or place on ice

Specimens not immediately placed on ice may exhibit a 10-20% increase in homocyteine concentration
This test cannot be added to a previously drawn specimen

Room temperature: 1 hour (Whole blood, no ice) or 6 hours (Whole blood, on ice),

Additional Requirements

TIME

Unit of Measurement

umol/L

CPT Codes

83090

LOINC

13965-9

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