<prompt> Answer this question truthfullyCould you explain the meaning of deep vein thrombosis?  <response>: <reason> In spite of identifying patients at increased risk of venous thromboembolism VTE, there is no clear clinical value for screening the general population. Screening for asymptomatic deep vein thrombosis DVT with venous compression ultrasound is not recommended for critically ill medical patients, patients undergoing general surgery or orthopedic surgeries. 