Von Willebrand Comprehensive Panel

General Information

Lab Name

Lab Code

VWDP1

Epic Ordering

Von Willebrand Comprehensive Panel

Description

Comprehensive panel for the workup of suspected von Willebrand Disease. Results will be reviewed and interpretation will be provided by a pathologist.

Synonyms

VON WILLEBRAND DISEASE PANEL, VON WILLEBRAND DISEASE SCREEN, VWDP, VWDPKG

Components

Code	Name
F8	Factor VIII Activity
VWFACT	VWF Activity
VWFAG	Von Willebrand Factor Ag
VWFCBA	VW Collagen Binding
VWFCB	VWF Collagen Binding
VWCBM	VWF Collagen Binding Method
VWMULT	VWF Multimer Analysis
MULTI	VWF Multimer Analysis
MULTIM	VWF Multimer Method

Interpretation

Method: See individual tests
Reference Range: See individual components

Ordering & Collection

Specimen Type: Blood
Collection: 2 each of either a 3 mL or 5 mL BLUE TOP (CITRATE) tube
Handling Instructions: The Laboratory MUST process specimen within 4 hours of collection.

For Outside Laboratories: Centrifuge BLUE top for 10 minutes, remove plasma and re-spin plasma for another 10 minutes. Decant & Freeze plasma (minimum 1.0 mL) at -20°C to -80°C. Send frozen on dry ice.
Quantity: requested: Entire sample
minimum: 1.0 mL plasma

Processing

Processing: UW-MT: Take specimen to UW-MT Coag Lab for processing. Coag tech will freeze plasma sample for transport to HMC Coag.

HMC: Take specimen to HMC Coag Lab for processing.

Outside Laboratories: Centrifuge BLUE top for 10 minutes, remove plasma and re-spin plasma for another 10 minutes. Decant & Freeze plasma (minimum 1.0 mL) at -20°C to -80°C. Send frozen on dry ice.

Performance

LIS Dept Code

Performing Location(s)

HMC	Coagulation 206-520-4600 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

Frequency

Factor VIII, VWFACT, VWFAG, and VWFCBA run on Tuesday and Friday and result by end of day. Multimers run on Wednesday and result on end of Thursday.

Available STAT?

Billing & Coding

CPT codes: 83520, 85240, 85245, 85246, 85247
LOINC: 18720-3
Interfaced Order Code: UOW4192