Flashcards in 23. Deep venous thrombosis Deck (13):
Deep venous thrombosis definition
blood clot within deep vein
deep venous thrombosis sx
deep venous thrombosis is predisposed by
dorsiflexion of foot --> calf pain
prophylaxis and acute management of DVT
unfractionated heparin OR low molecular weight heparin
treatment (long time prevention ) of DVT
oral anticoagulants (e.g warfarin, rivaroxaban)
• Which three factors that promote blood coagulation are known as the Virchow triad?
Stasis, Hypercoagulability, and Endothelial damage (SHE)
• A patient diagnosed with factor V Leiden is at risk of developing deep venous thrombosis. Which element of the Virchow triad is affected?
• How does endothelial damage lead to the formation of a clot?
Exposed collagen triggers the clotting cascade
• A patient presents with dyspnea and tachycardia. Chest CT shows a pulmonary embolus. From where did the embolus most likely originate?
The deep veins of the leg
• Describe the Homan sign.
In the Homan sign, dorsiflexion of the foot results in a tender calf muscle because of the presence of a deep venous thrombosis
• A patient presents with a red, swollen leg. Venous Doppler confirms a deep venous thrombosis. Acutely, what is your treatment of choice?
Unfractionated heparin or heparins of low molecular weight