ANSWERS 2026
◉ True or False. Approximately 15% of patients who have
experienced DVT in the lower extremities develop PTS, with 4%
developing severe symptoms. Answer: False
Approximately 30 to 40% of patients who have experienced DVT in
the lower extremities, develop PTS, with 4% developing severe
symptoms.
◉ Approximately how many cases of VTE occur in the US each year?
Answer: 900,000
◉ True or False. According to Virchow's triad, the three factors that
contribute to DVT include venous stasis, endothelial injury of the
vein wall, and a hypercoagulable state. Answer: True
Keep in mind that causes of vein wall injury include not only surgery
and trauma but also infection, hypoxia and intravenous injection of
irritants.
◉ What are the five risk factors that put a patient at highest risk of
DVT even in the absence of any other additional factors? Answer: