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

Methodology

Clotting
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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%
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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