Methodology
Immunoassay (IA)
Synonyms
Factor 8
Specimen Type
Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
Other Reference Test
Lab Test Days
As needed at least 1x per Month
Standard TAT
2-31 Days
Collection Information
Specimen Required
(one) 1.8 mL or (one) 2.7 mL Blood
Container Type
Light Blue (Sodium Citrate)
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: 4 Hours; Refrigerated: 48 Hours; Frozen: 6 Months
Test Volume Required
1 mL Platelet Poor Plasma
Minimum Test Volume
0.5 mL Platelet Poor Plasma
Processing Instructions
Platelet-poor plasma: Centrifuge light blue-top tube for 15 minutes at approximately 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 screw-cap vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic screw-cap vial. Plasma must be free of platelets (<10, 000/mcl). Freeze immediately and send frozen.
CPT Codes
85244