Inpatient and Outpatient Orderable

Homocysteine

Synonyms

  • HCYS
  • HOMOCYSTEINE, SERUM
  • LAB93

Cerner Name

Homocysteine Blood

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 Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

2 mL of serum ( 0.5 mL min)

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

Only Orderable at Locations:

Orderable Everywhere

Results
Component Name Base Name Common Name External Name
HOMOCYSTEINE, SERUM HOMOCYSTEINE HOMOCYSTEINE Homocysteine

Result Interpretation

< 15.0  umol/L

Forms
LAB93 build edit