Laboratory Test Detail

Last Updated: September 26, 2020 @ 9:13 am



  • One Lavender (EDTA)

Also Acceptable:
  • One Green Top (Li Heparin)
  • One Pink Top (EDTA)
  • One Red Top
  • One SST
  • 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable:
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling:
  • Allow specimen to clot completely ON ICE.
  • Avoid repeated freeze and thaw cycles.
  • Store specimen on ice between collecting and centrifugation. Samples may be kept on ice for up to 6 hours prior to separation by centrifugation.

    Avoid air exposure longer than 3 hours.

    **Due to instability of specimen, homocysteine cannot be added to previously drawn specimens**
Rejection Criteria:
  • Grossly Hemolyzed Samples
  • Heat inactivated
  • Lipemic Samples
  • Microbial Contamination
  • Specimen submitted at room temperature
  • Specimens containing particulate matter (Fibrin, RBC, or other matter)
Stability:Ambient: Unacceptable; Refrigerated: 2 Week(s); Frozen: 12 Month(s); Incubated: Unacceptable
  • Chemiluminescence Microparticle Immunoassay (CMIA)
Performed:Sunday, Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 83090
Interpretive Data:General Reference Range : 5.08-15.39 umol/L
Male Reference Ranges
  • 0 - 999 year(s) : 5.46-16.2 umol/L

Female Reference Ranges
  • 0 - 999 year(s) : 4.44-13.56 umol/L

Reference Range changed as of 8/29/2017.
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