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Test Code Homocysteine Homocysteine, Total

Important Note

Tube must be completely filled and placed on ice after collection

Performing Laboratory

Memorial Hospital Laboratory- Automated Procedures  304-388-5953       

Specimen Requirements

Plasma- EDTA- purple top

Spin and physically separate plasma from contact with cells as soon as possible

Specimen Rejection

  • Improperly labeled, collected, stored, and transported
  • Quantity not sufficient
  • Hemolyzed 

Storage and Stability

On ice 6 hours
Refrigerated 2-8oC 2 weeks
Frozen <-20oC 8 months

Reference Values

3.2-10.7 µmol/L

Methodology

Photometric enzymatic assay

Days Test Set Up and Turnaround

Monday through Sunday, Continuously

AM Collection Expected by 9AM same day
Routine Expected within 24 hrs
Stat Expected within 1 hr
Timed Expected results are test dependant

CPT Coding

83090