Re: IV bolusing a fluid overloaded patient Originally Posted by TakeBack
Just for the record, not all the time. There are several conditions (TR, constrictive pericarditis, pericardial effusion, RV failure) where an elevated CVP does not necessarily reflect intravascular fluid overload.
Swan ganz or echo may be better evaluations for LV filling.
Okay, just for the record, true. But we are talking about this particular patient. Gross anasarca, oliguria---a quick echo to rule out the most obvious cardiac etiology would be useful but a CVP would be the least invasive and most rudimentary of readings to get when trying to put the facts together here.
I have a feeling that this may be more involved than just a "backup" of fluid due to cardiac or hepatic reasons. Due to her metastatic disease I would suspect that she has vascular permeability/leakage that is contributing greatly to her edema. Most of us who have been doing this for some time have seen the eventual picture---metastatic CA, grossly bloated patient with weeping edema, no urine output, on levo, organs failing one by one. It's such a mixed picture that it's often difficult to figure out what preceded what as far as problems go but the end picture is pretty much always the same with little variation on the theme.
Swans have fallen greatly out of favor over the last ten years or so. Years ago just about everyone in the ICU (teaching hospitals where I worked, anyway) had a Swan. Mr. Swan and Mr. Ganz made their fortunes and then studies came out showing that in many cases the risks far outweighed the benefits. They have their place, of course, but start with the basic diagnostics before going the more invasive route.
How about a Vigileo, for example? You can get a CO and CI without the possibility of blowing a pulmonary artery or tickling a ventricle into VT. But a Vigileo or PA would buy her a trip to the ICU and this might be something her docs are trying to avoid, for a multitude of reasons. A central line for sure, if only a PICC, would be where I would start. You can get baseline numbers from an echo. The least invasive of diagnostic procedures, as first steps.
Just a thought.
In any case this lady has a tough road ahead of her and at the very least we can try to minimize the medically approved torture. Perhaps this is what her docs are trying to do, knowing the prognosis?
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