Factor XIII Activity

Message

Collect a full tube, following standard venipuncture techniques.

Test Code

LAB1113 F13AG

Alias/See Also

F13AG

CPT Codes
85290

Includes

@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@

Instructions

Platelet Poor Plasma: Centrifuge light blue-top tube 15 minutes at approx. 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcL).Freeze immediately and ship on dry ice.Minimum Testing Volume: 0.3 mL Transport Temperature: Frozen Stability: Ambient: 24 hoursRefrigerated : 24 hoursFrozen: 14 days Causes for Rejection: Thawed plasma

Report Available

12-Days

Clinical Significance

1230170458

Last Updated: May 18, 2026

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.