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Test Code LAB5391 HOMOCYSTEINE, TOTAL

Important Note

Place on ice immediately after collection.

Specimen Type

Preferred Sample: Lithium Heparin Tube (Mint Green Top) ON ICE
Alternative Sample: Serum (SST, Gold, Tiger, Red Top Tube-no gel) ON ICE

Specimen Processing

Place on ice immediately after collection. Centrifuge cold and separate from cells ASAP. Place the tube back on ice, and keep it in a refrigerator until the testing can be completed. 

Specimen Volume

1 mL

Minimum Volume

0.5 mL

 

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

On Ice: 6 hours

Refrigerated: 14 days

Frozen: 12 months
 

Method

Chemiluminescent Microparticle Immunoassay (CMIA)

Reference Ranges

Male: 5.46-16.2 micro mol/L

Female: 4.44-13.56 micro mol/L

Critical Values: None

 

Reporting Limit

Reporting Range: 1.00-500.00 micro mol/L

Synonyms

HCY, LAB5391

CPT Codes

83090

Interference

Hemolysis: 1000mg/dL

Icterus: 20 mg/dL

Lipemia: 6000mg/dL