Homocysteine Build info

Synonyms

• HOMOCYSTEINE, SERUM
• HCYS
• LAB93

Short Name

HOMOCYSTEINE

Procedure Master Number

LAB93

Procedure ID

834

Clinical Info

An elevated concentration of homocysteine is an independent risk factor for cardiovascular disease. When used in conjunction with methylmalonic acid (MMA), these tests are useful to diagnose and monitor vitamin B12 (cobalamin) and folic acid deficiency and are often useful in evaluating macrocytosis (an elevated MCV, an erythrocytic index).

Specimen Type

Blood

Container

Gold-top tube(s).

Collection Instructions

Container/Tube:  Gold-top tube(s).
Specimen: 2 mL of serum ( 0.5 mL min)
Transport Temperature:   Refrigerated.
 
Note: Spin down, remove serum from cells within 2 hours of draw

Transport Instructions

Refrigerated.

Specimen Stability

4 days Room Temperature
4 weeks Refrigerated
10 months Frozen
Freeze only once

Methodology

Enzymatic Assay

Days Performed

Monday though Sunday

Performing Laboratory

Northwell Health Laboratories

CPT

83090

PDM

5900785

Results