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Lab Test Dictionary

Anti-Factor Xa (Back-Up Only)


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

Specimen Type


Performing Lab

Sharp Coag

Epic ID

Other Reference Test

Lab Test Days

Daily; 10 A.M.

Standard TAT

Same Day

Collection Information

Specimen Required

1.8 mL or 2.7 mL Blood

Container Type

Light Blue (Sodium Citrate)

Collection Instructions

Weekend test availability depends on staffing at Sharp. Will take STATS in most cases on weekends.

Processing Information - Lab Use Only

Transport Temperature


Test Volume Required

1 mL Platelet-Poor Plasma

Minimum Test Volume

0.5 mL Platelet-Poor Plasma

Processing Instructions

Centrifuge and separate plasma. Centrifuge a second time and separate plasma avoiding the platelets at the bottom. Freeze immediately. Complete Sharp requisition and submit with specimen frozen and deliver directly in the Sharp Lab ASAP. If STAT order is recieved after 1000, call Sharp Coag to see if they will still accept specimen on daily run.

CPT Codes