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Lab Test Dictionary

Anti-Factor Xa (Heparin Assay)

Methodology

Chromogenic


Synonyms

Low Molecular Weight Heparin (LWMH); Anti-Factor Xa; Lovenox

Specimen Type

Plasma

Performing Lab

RCHSD Coag


Epic ID

LAB00169A

Lab Test Days

Sunday-Saturday; (1400-2130)

Standard TAT

Same Day, (After 1600)


Collection Information

Specimen Required

1.8 or 2.7 mL Blood

Container Type

Light Blue (Sodium Citrate)

Collection Instructions

Specimens must be received in lab by 1400 in order to make the daily run.


Processing Information - Lab Use Only

Transport Temperature

Ambient-Only

Specimen Stability

Room Temp: 2 Hours; Refrigerated: Unaccpetable; Frozen: 2 Weeks

Test Volume Required

1 mL Plasma

Minimum Test Volume

0.5 mL Plasma

Processing Instructions

Centrifuge and separate plasma within ONE HOUR of collection. FREEZE plasma if testing will not be done within two hours of collection.


CPT Codes

85520


Revised

07-22-17

Initials

SL