Children's Mercy Hospitals and Clinics
Name
Homocysteine

CMH Lab Section
Chemistry

Specimen Requirements
2 mL blood in lavender, green or plain red tube from a fasting patient (4-hours).
Send tube to the lab on wet ice.
Blood must be received in the lab within 1-hour of collection.
Both lavender and green tube must be at least half full.


Availability
STAT or Routine

Turn Around Time
STAT: 1 hour
Routine: 2-4 hours

Special Instructions
Preferred specimen is fasting a minimum of 4-hours.

Processing Instructions
Spin, separate and refrigerate if not tested within 1-hour of collection.

Methodology
Vitros

Ranges
Age dependent
0m-10y: 3.3-8.3 umol/L
11y-15y: 4.7-10.3 umol/L
16-18y: 4.7-11.3 umol/L
18y-60y: 4.4-12.5 umol/L
>60y: 5.0-20.0 umol/L

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