Factor 8 Thrombosis Panel

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General Information

Lab Name
Factor VIII Thrombosis Panel 1
Lab Code
F8THR1
Epic Name
Factor VIII Thrombosis Panel
Description

**Laboratory Medicine resident's approval is required for hospital inpatients and patients in Emergency Department.**

Persistent elevation of plasma factor VIII levels with normal C-reactive protein have been associated with increased risk for venous thromboembolism. It also predisposes to recurrent venous thromboembolism.

Components
Code Name
CHRF8 Chromogenic Factor VIII
HSCRP CRP, high sensitivity

Interpretation

Reference Range
See individual components
Interferences and Limitations

See individual tests

Ordering & Collection

Specimen Type
Blood
Collection

HMC and UW-MT Onsite Locations:Collect Blood in each of the following tubes: Preferred:4 mL blood in LIME GREEN PST tube PLUS 2.7 mL BLUE TOP tube
Also Acceptable: 4 mL blood in GOLD SST, ORANGE RST, RED TOP, GREEN TOP or LAVENDER TOP PLUS 2.7 mL BLUE TOP

Offsite Clinic or Other Locations: Collect Blood in each of the following tubes: Preferred:4 mL blood in GOLD SST tube PLUS 2.7 mL BLUE TOP tube
Also Acceptable: 4 mL blood in ORANGE RST, LIME GREEN PST, RED TOP, GREEN TOP or LAVENDER TOP PLUS 2.7 mL BLUE TOP

Handling Instructions

The Laboratory MUST process specimen, within 4 hrs of blood collection.

Quantity
Requested: Entire sample

Processing

Receiving Instructions

** SPS will call for Laboratory Medicine Resident’s approval for hospital inpatients and patient’s in Emergency Department.** Approval is NOT required for hospital outpatients, clinic patients or outside clients.

UW-MT/HMC: Centrifuge RED, SST, GREEN or LAVENDER tube. Refrigerate serum/plasma. Take blue top to Coag lab for processing.

Outside locations: Centrifuge RED, SST, GREEN or LAVENDER tube. Refrigerate serum/plasma.

Centrifuge Blue top for 10 minutes, remove plasma & re-spin plasma for another 10 minutes. Decant & Freeze plasma (minimum 1.0 mL) @ -20°C to -80°C. Send frozen on dry ice.

Misc Sendout

Performance

Lab Department
Frequency
CHRF8: Monday and Thursday. Result end of day. HSCRP: Daily
Available STAT?
No
Performing Location(s)
HMC See Individual Tests
UW-MT See Individual Tests

Billing & Coding

CPT Codes
85130, 86140
LOINC
18720-3