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Homocyst(e)ine, Total, Serum/Plasma

Mnemonic:    [HOMOCYST]
Name:    Homocyst(e)ine, Total, Serum/Plasma
Specimen:    1 mL serum from a Red SST or Red top tube, or plasma from a Green PST. A fasting sample is preferred.

Centrifuge the sample ASAP; separate plasma from cells within 1 hour of collection. If the sample cannot be centrifuged immediately, keep the sample on wet ice.
Minimum Spec:    0.3 mL
Transport Temp:    Refrigerated
Spec Stability:    Stable up to 4 weeks refrigerated.
Ref Lab/Code:    ARUP 0099869
  Method:    Enzymatic
Note:    False elevations of plasma or serum homocysteine may occur if the plasma or serum is not promptly separated from the cells at the time of collection.
Processing Info:    MOB: Send to lab immediately and in a separate bag.
CR: Separate plasma from cells within 1 hour of collection.