Factor 8 activity-638
Test info
Factor 8 activity
638
85240.0
F8
Specimen
Sodium citrate (Na cit) plasma
Lt blue Sodium citrate (Na Cit) - 2.7mL
If the patient has a hematocrit >55, a specially prepared Lt blue Sodium citrate (NaCit) tube must be used in place of the standard Lt blue Sodium citrate (NaCit) tube.
1.5 mL
0.6 mL
- Do not over or under fill tube as the ratio of anticoagulant to whole blood is critical
- Immediatley following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting
- Process Platelet Poor Plasma (P.P.P)
Coag – how to prepare a specimen for special coagulation testing
- Transfer plasma into an aliquot tube, labelled as platelet poor Na cit plasma
- Freeze immediately
Microcentrifuge vial/tube in a Snap cap conical vial/tube and cap (Beaker sites)
Coagulation specimen transport vial/tube (all other sites)
Frozen (strict)
Refrigerated - NO
- Improper label (unlabeled or mislabeled)
- Improper anticoagulant
- Improperly filled tube
- Hemolysis
- Clotted specimen
- Delay in transport
- Improper storage/transport temperature
- Specimens collected in Greiner tubes
Performance
AHL - Coagulation/Special Coagulation: V
Mo, We, Fr
Available STAT
Available STAT
1 day
Clot Based Assay
Clinical and Interpretive info
| Age | Range (%) |
| 0 - 5 days | 50-178 |
| 6 - 30 days | 50-157 |
| 1 - 6 months | 50-125 |
| >7 months | 50-149 |
Billing
85240
Tracking
11/30/2001
01/13/2021
01/12/2024