Factor VIII Inhibitor Screen
General Information
Lab Name
Factor VIII Inhibitor Screen
Lab Code
F8INSC
Epic Name
FACTOR 8 INHIBITOR SCREEN
Description
This is a qualitative screening test for Factor 8 inhibitor on Hemophilia A patients. If quantitative result is desired, please order Factor 8 Inhibitor (F8INH).
Synonyms
Factor 8 Inhibitor Screen
Interpretation
Method
Bethesda assay using chromogenic (2-stage) bovine-based Factor VIII assay
Reference Range
| Female | Male | ||
|---|---|---|---|
| Age | Range | Age | Range |
| 0- | Negative [NRN] | 0- | Negative [NRN] |
Ordering & Collection
Specimen Type
Collection
2, 3 or 5 mL BLUE TOP (CITRATE) tube
Handling Instructions
The Laboratory MUST process specimen within 4 hours of collection.
Quantity
requested: Entire sample
minimum: 0.5 mL plasma
Processing
UW-MT Instructions: Take specimen to UW-MT Coag Lab for processing. Coag tech will freeze plasma for transport to HMC Coag.
HMC Instructions: Take specimen to HMC Coag lab for processing.
Outside Laboratory: Centrifuge for 10 minutes, remove plasma & re-spin plasma for another 10 minutes. Decant & Freeze plasma (minimum 0.5 mL) @ -20°C to -80°C. Send Frozen on dry ice.
Performance
LIS Dept Code
Coagulation (COAG)
Performing Location(s)
| HMC |
Coagulation
206-520-4600 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420 |
|---|
Frequency
Run Monday-Friday. Reported by end of day.
Available STAT?
No
Billing & Coding
CPT codes
85335
LOINC
Interfaced Order Code
UOW1829
Interfaced Result Code
UOW1829