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VWF Exon 28 Sequence Analysis (For Type 2M or 2B VWD)

Order Code: 1284

Also Known as

Exon 28, Von Willebrand Factor

Disease State

Test Information

Sequence Analysis of VWF exon 28 detects germline variants associated with type 2B or type 2M von Willebrand disease (VWD).

Sample Requirements

Amniotic Fluid, Buccal Swabs, Cultured Amniocytes, CVS, DNA, EDTA Bone Marrow, EDTA Whole Blood

Shipping Information

Room Temperature

Requested Volume

3-5 mL EDTA Whole Blood or Bone Marrow (lavender top), 3-4 Buccal Swabs, 1 ug DNA at 50 ng/uL, 7-15 mL Amniotic Fluid, 5-10 mg CVS, 2-T25 flasks cultured amniocytes or CVS (2x10^6 minimum)

Minimum/Pediatric Volume

Fetal: Call laboratory; Parental/Patient: 2ml

CPT Codes



Capture Hybridization and Next Generation Sequencing (MiSeq) with supplementary Sanger for quality and coverage or PCR and Bi-directional DNA Sequencing

Turnaround Time

21 days

DEX Z-Code™

Yes, visit app.dexzcodes.com


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