We don't include valsalva as part of a dvt study. We do slow the sweep speed down to document respirophasic changes.  

Valsalva would only document cessation of flow with a competent valve just superior to where you sample when they perform it ( for lower ext. venous).

Did the radiologist elaborate on why it should be included?  For ue venous I have them sniff to augment flow in proximal vessels such as subclavian or innominate. Is he concerned about ue venous or le? I have never heard of this for a routine le venous exam. 

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On Jul 8, 2010, at 5:52 PM, "Dianka P." <[log in to unmask]> wrote:

> Hello everybody,
>  
> i'm trying to find out if valsalva maneuvr  on deep veins should be a part of DVT study?
> I was working as a Vascular Tech for 3 years in 2 hospitals and a vascular center, and it was never included in DVT exams, only as a part of protocol for Reflux study.
> However, the Radiologist in the clinic where i work now believes that it should be a part of the protocol.
> Any responds would be greatly appreciated.
>  
> Diana
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