91362 Heparin Anti-Xa, LMW

Specimen:

Collect:

One 4 mL Blue Top (Na Citrate)

Submit:

2 mL (Min:1.5 mL) Plasma. Submit Frozen. Submit in a Standard Transport Tube.

Special Handling:

Critical Frozen
Separate from cells ASAP
Centrifuge sample and separate plasma within one hour of collection.
For patients on Low Molecular weight heparin therapy, state type.

Rejection Criteria:

Hemolyzed specimens

Stability:

Ambient: 4 Hour(s); Refrigerated: 8 Hour(s); Frozen: 2 Week(s); Incubated: Unacceptable

Methodology:

Chromogenic; Inhibition

Performed:

Sun-Sat

Reported:

2-3 Day(s)

CPT Codes:

85520 - Heparin Assay

Interpretive Data:

General Reference Range : 0.50-1.10 U/mL
Therapeutic range based on enoxaparin brand low molecular weight heparin