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Test Code HCY Homocysteine

Important Note

Place specimen in ice and send to laboratory immediately. Centrifuge within 2 hrs.

Additional Codes

Epic Ordering Code LAB93
NBS code LBC04530
Service code 31053

Specimen Requirements

Submit only one of the following immediately:                                                

Preferred: Purple top

 

 

Processing Requirements

Send sample on ice to laboratory immediately. Centrifuge within 2 hrs.

Specimen type: Serum

Volume: 0.5 mL

Storage/transport requirements: Frozen

Specimen Stability

Specimen Type Plasma
Ambient Reject
Refrigerate 6 hours (on ice) / 14 days (2 - 8°C)
Frozen 1 year

Specimen Condition

Haemolysis OK
Icterus OK
Lipaemia OK
Others Not applicable

Methodology

Chemiluminescent Immunoassay

Days and Times Performed

Monday and Thursday, TAT 6 days

Reference Interval

 5.1 – 15.4 umol/L

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Assessment of coronary heart disease (CHD) risk, obstetric complication and neural tube defects.

LOINC Code Information

13965-9

Update

Last updated 07/04/2026