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Test Code FACT13 ACT Factor XIII Activity

Performing Laboratory

Quest Diagnostics Nichols Institute

San Juan capistrano, CA



Specimen Required

Container/Tube: Light blue-top (3.2% sodium citrate) tube

Specimen: 0.5 mL citrated plasma

Transport Temperature: Frozen

Stability:  24 Hours  Room temperature

                   24 Hours Refrigerated

                   14 Days Frozen

Collection 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.

Reference Values

57 - 192 %

Test Classification and CPT Coding



LONIC Code: 27815-0

Day(s) and Time(s) Performed


TAT: 4 - 11 Days.

Useful For

Low Factor XIII levels, i.e., <15%, may cause a bleeding disorder and levels <2% have been associated with spontaneous introcranial hemorrhage

Computer Interface Code

PDM # 1459877