If thromboelastography tracing is normal with regard to von Willebrand disease, which diagnosis is most likely?

If thromboelastography tracing is normal with regard to von Willebrand disease, which diagnosis is most likely?

• A. Type 1 vW disease
• B. Type 2 vW disease
• C. Type 3 vW disease
• D. No vW disease

Answer: (D)

Thromboelastography shows the overall clot formation process, including how platelets and vWF contribute to clot strength. Von Willebrand disease can reduce clot strength, especially in more severe forms, so abnormal TEG results often point toward impaired platelet adhesion or factor involvement. When the tracing is normal in the context of von Willebrand disease, it suggests that vWF-related impairment isn’t present, making no von Willebrand disease the most likely diagnosis. Keep in mind that a normal TEG doesn’t completely rule out mild vWD, so specific vWF testing would be needed for a definitive assessment.

Thromboelastography shows the overall clot formation process, including how platelets and vWF contribute to clot strength. Von Willebrand disease can reduce clot strength, especially in more severe forms, so abnormal TEG results often point toward impaired platelet adhesion or factor involvement. When the tracing is normal in the context of von Willebrand disease, it suggests that vWF-related impairment isn’t present, making no von Willebrand disease the most likely diagnosis. Keep in mind that a normal TEG doesn’t completely rule out mild vWD, so specific vWF testing would be needed for a definitive assessment.