Dear Jerom,
I agree, it is not an accurate method. There are many reasons why you can not
measure the real volume flow in veins accurately. However, this measurements
can be higly REPEATABLE if done in the right segment (between the valves), and
duration of the measurement is long enough. Other important issue is the
standard conditions of measurements.
I will fax you the reference I have.
For flowneter: is anybody there work on this issue? 
Jerom, sounds like you've got a new MedDir. What happend to Bob?


> ----- Original Message -----
> From: Oldman <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, April 13, 2000 6:38 PM
> Subject: Re: Volume flow
> 
> 
> > Dear colleagues,
> > Brining the issue of volume flow measurements back, can you provide me
> with
> > reference on repeatability/reproducibility of volume flow measurements in
> > veins.
> > My med director insisted on doing this, but I personally do not think it
> is a
> > reliable measurement.
> > Thanks.