Test Code HCY2 Homocysteine
Performing Laboratory
North Ottawa Community Hospital
Specimen Requirements and Processing
Lavender (EDTA) top tube Plasma
Minimum volume-tube must be at least half full
Separate from cells within 1 hour of draw or refrigerate up to 8 hours prior to separation
Reference Values
Female: 4.7-12.6 umol/L
Male: 6.6-14.8 umol/L
Specimen Stability
Separate from cells within one hour of collection and store as follows:
Room Temp: < 3 Days
Refrigerated: <10 Days (Preferred)
Frozen: < 1 month.
Methodology
Enzymatic