Factor IX, Inhibitor F9IN
Method(s) | Clotting Assay |
---|---|
Specimen Required | |
Collect | Two 3 mL light blue (sodium citrate) top tube. |
Transport | **TIME SENSITIVE** Specimens that cannot be shipped to the laboratory to arrive within 2 hours of collection must have platelet-poor plasma aliquoted and sent frozen to the laboratory. |
Unacceptable Conditions | Room temperature specimens |
Schedule | Performed once a week. |
Billing Code | 5011069 |
CPTCode | 85335 |
Notes | Testing cannot be performed if Factor IX level is greater than 3 U/dL. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
Less than 0.6 Bethesda units. |