What's the proper way to rule out a dvt in the calf?. i had an ultrasound groin to knee that was negative. no bloodwork. doc ruled out dvt.

See below: It all depends if someone is high risk or low risk for a DVT. In your case someone that is young, it is unlikely that you had a DVT unless you had a predisposing event for such like malignancy, blood disorder, history of DVT, broken bones etc. - When the likelihood is low, a D-Dimer is very sensitive and will likely rule out possibility. If suspicion is high -> Ultrasound will help

Follow up/mgt: An ultrasound is quite accurate as a screening tool. If you develop any symptoms or continue to have pain, further evaluation is indicated. Any respiratory problems should be reported to your doctor immediately. Try to avoid NSAIDs if you can.

Dvt: Ultrasound is the best test if negative no need for other tests