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Epic Code LAB2111186 von Willebrand Factor Multimer

Important Note

Please take steps to ensure specimen integrity to reduce recollection. Specimen Tube Shortage (link)

Additional Codes

Versiti Wisconsin test code 1063

Test Name Alias

vonWillebrand Multimer Analysis VWF Quantitative Multimer | 8283

Interface Order Alias

10283

Collection Instructions

Specimen Collection: Blood

Container(s): Blue top (3.2% Na. Citrate)

  • Preferred Volume to Collect: 2.7 mL (full tube)
  • Minimum Volume to Collect: 1.8 mL (full tube)
  • Capillary collect ok: No
  • Microtainer acceptable: No

 

COLLECTION INSTRUCTIONS

  • Detailed instructions (link): Anticoagulant Correction for High Hematocrit

  • Detailed instructions (link): Blue Citrate Tube

  • Tube must be full. Do not over fill or under fill; look for the fill indicator lines.

  • Gently invert 8 - 10 times to mix anticoagulant with blood.
  • Specimen should be processed within 1 hour – See Processing Instructions below.

 

PROCESSING INSTRUCTIONS (Laboratory, Outpatient or Off-site collection)

 

Processed Specimen: Platelet Poor Plasma with a platelet count <10 X 109/L

Centrifuge/Spin: Yes

Aliquot: Yes

Processing Instructions:

  • Centrifuge and remove plasma within 1 hour of collection.
  • Separate plasma into 2-3 aliquots, minimum of 0.5 mL each.
  • Freeze aliquots in plastic transport tubes immediately.

Transport Temperature:

  • Ambient (up to 1 hour in whole blood state)
  • Frozen (plasma only >4 hours)

Rejection Criteria

Hemolysis

Specimen Stability

Ambient: 1 hour

Frozen: 2 months

Test Frequency

Sent to reference laboratory. Usual TAT 7-10 days.

Performing Department

REFERRAL SEND OUTS

Performing Department Laboratory Location

Send Out to Versiti Wisconsin Ref. Lab

CPT

85247

CDM Code

80101911

Epic Test ID

1230101297

LOINC

vWFMultimer Analysis: 32217-2

vWFMultimer Analysis Interp: 8251-1

Beaker LOINC

Send Out test to Versiti Wisconsin, LOINC Unavailable

Reviewed Date

6/9/2023