Test Name
HOMOCYSTEINE, SERUM
Aliases
-
Abbreviations
-
Test Classification
INDIVIDUAL
Department
SPECIAL CHEMISTRY
Sub Department
-
TAT Category
ELAPSED (CONTINUOUS) TIME
Estimated TAT
96
TAT Units
HOURS
Test Requirements
Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour.
SHIPPING/ TRANSPORTATION REQUIREMENTS
Shipping Temperature: Refrigerated
ANALYTE STABILITY
Room Temperature: 7 DAYS at 20-25°C │ Refrigerated: 7 DAYS at 2-8°C │ Frozen: 3 MONTHS at -20°
Clinical Utility
Diagnose hyperhomocysteinemia due to acquired causes (vitamin B6, B9, B12 or folic acid deficiency, hypothyroidism, renal insufficiency, some drugs) or inherited causes (homocystinuria, MTHRF C677T mutation etc.). Vitamin B12 and folate can be considered as follow up tests to elevated homocysteine results if not already performed. Hyperhomocysteinemia can increase thrombotic risk.
Last Review
26th Feb 2026