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Homocysteine

Source Blood
Mnemonic HCYT
Specimen Requirements

Test cannot be collected by Mobile Collection Service (MCS).

1 x 3 mL light green (mint) top PST tube. Gold top SST tube also acceptable.

1.0 mL plasma or serum

Overnight fast preferred. Note if not fasting.

Keep tubes cold (immerse in ice water) immediately after collection.

Specimen Handling

PSC, RRL and Extra-regional sites:
Place PST or SST sample on ice until centrifuged
.
Centrifuge at room temperature, pour off and mark aliquot tube "PST" or "SST".
It is not necessary to transport on ice to the DSC.

DSC:
Store plasma or serum in refrigerator.

Additional Information
Testing Location Immunochemistry
Testing Frequency Weekdays
Alternate Name(s)
Reference Interval

Age

Male

Female

Units

16-49 years

4.9-13.7

4.1-9.9

umol/L

50-150 years

4.9-13.7

3.8-12.8

umol/L