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Test Code HCY* HOMOCYSTEINE

Important Note

*This test is orderable in Cerner as Homocysteine Tot-UVM

Patient should be fasting, as reference range obtained from fasting individuals.
Sample is stable at room temperature for 1 hour. If sample cannot be delivered to laboratory in ≤ 1 hour, then sample should be collected on ice, centrifuged immediately and plasma transferred to another tube and refrigerated for delivery to the laboratory.

Samples can be collected at the Laboratory Outpatient Phlebotomy sites, but the sample must be placed on wet ice for transport to the lab.  These samples that are on ice must have the plasma removed from the cells within 4 hours of collection.

This test should only be drawn at the 160 Allen St Draw Station.

Additional Codes

Mayo Access ID: FAH5249

Method

Chemiluminescence Immunoassay

CPT Code(s)

Description CPT Code

Homocysteine                                       

 83090

 

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
Lav Top (EDTA) Plasma Refrigerate 3.5 mL 1 mL 0.3 mL 7 days

Sample must be kept on ice until you spin, remove plasma immediately after centrifugation. Refrigerate plasma.  Serum separator or red top tube is acceptable, centrifuge within 30 minutes and remove serum from gel or cells as soon as possible.  Due to special sample handling and transport, add on requests cannot be done.

Reference Range

Age Sex Low High Units
≥18 year All 3.7 13.9 umol/L

 

Instrumentation

Siemens Atellica IM1600

Performing Location

University of Vermont Medical Center

Test Schedule / Analytical Time / Test Priority

Monday, Wednesday, and Friday / 3 days / Not available STAT

Section

Chemistry-2

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes