Single Ultrasound May be Enough For Blood Clots, University of Utah School of Medicine Study  
2/11/2010 7:56:12 AM

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(Ivanhoe Newswire) -- Multiple ultrasounds may not be necessary for some patients with a suspected blood clot in a deep vein of a leg, and withholding anticoagulation therapy after a negative whole-leg ultrasound is associated with a low risk of developing a blood clot during the subsequent three months.