Test Details
Mnemonic
F11AR
Ordering Code
3619140
CPT-4 Code(s)
85270
Specimen Information
Patient Preparation
Collect using coagulation test collection methods.
Collect
Light blue sodium citrate
Specimen Preparation
See Coagulation Test Instruction Guide. Send 2.0 mL plasma in a screw capped plastic vial.
Minimum Volume
1.0 mL
Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Rejection Criteria
Serum, non-frozen or hemolyzed specimens, EDTA plasma
Stability
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: 14 days
Refrigerated: Unacceptable
Frozen: 14 days
Methodology
Clotting
Reference Range
1 - 4 days: 10 - 66%
5 - 29 days: 23 - 87%
30 - 89 days: 27 - 79%
90 - 179 days: 41 - 97%
180 - 364 days: 38 - 134%
1 - 5 days: 56 - 150%
6 years: 52 - 120%
7 - 9 years: 70 - 138%
10 - 11 years: 66 - 137%
12 - 13 years: 68 - 138%
14 - 15 years: 57 - 129%
16 - 17 years: 65 - 159%
16 years and older: 56 - 153%
5 - 29 days: 23 - 87%
30 - 89 days: 27 - 79%
90 - 179 days: 41 - 97%
180 - 364 days: 38 - 134%
1 - 5 days: 56 - 150%
6 years: 52 - 120%
7 - 9 years: 70 - 138%
10 - 11 years: 66 - 137%
12 - 13 years: 68 - 138%
14 - 15 years: 57 - 129%
16 - 17 years: 65 - 159%
16 years and older: 56 - 153%
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes