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 aliquot required for each frozen test ordered
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

Interpretive Data:

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