Test Details
Mnemonic
F2AR
Ordering Code
3619100
CPT-4 Code(s)
85210
Specimen Information
Patient Preparation
Collect using coagulation test collection methods.
Collect
Light blue sodium citrate
Specimen Preparation
Send 2.0 mL plasma frozen in a screw capped plastic vial.
Minimum Volume
1.0 mL
Transport Temperature
Critical frozen
Rejection Criteria
Serum, non-frozen or hemolyzed specimens, EDTA plasma
Stability
Room temperature: 4 hours
Refrigerated: 4 hours
Frozen: 14 days
Refrigerated: 4 hours
Frozen: 14 days
Methodology
Clotting
Reference Range
1 - 4 days: 26 - 70%
5 - 29 days: 33 - 93%
30 - 89 days: 34 - 102%
90 - 179 days: 45 - 105%
180 - 364 days: 60 - 116%
1 - 5 years: 71 - 116%
6 years: 67 - 107%
7 - 9 years: 78 - 125%
10 - 11 years: 78 - 120%
12 - 13 years: 72 - 123%
14 - 15 years: 75 - 135%
16 - 17 years: 77 - 130%
18 years and older: 86 - 150%
5 - 29 days: 33 - 93%
30 - 89 days: 34 - 102%
90 - 179 days: 45 - 105%
180 - 364 days: 60 - 116%
1 - 5 years: 71 - 116%
6 years: 67 - 107%
7 - 9 years: 78 - 125%
10 - 11 years: 78 - 120%
12 - 13 years: 72 - 123%
14 - 15 years: 75 - 135%
16 - 17 years: 77 - 130%
18 years and older: 86 - 150%
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes