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A member asked:
How trustworthy is an venous ultrasound if i have polycythemia and a negative d-dimer? swelling below knee (closer to ankle), little hair, tightness.
A doctor has provided 1 answer
Trustworthy: A normal ultrasound and negative d-dimer are very trustworthy in ruling out a blood clot as the source of your swelling. It is time to look for other causes of the swelling like venous insufficiency, kidney disease, heart disease, or medication reactions.
Answered 10/30/2014
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