Dear colleagues
We are currently receiving requests for determination of Na and K in feces.
this analysis is only performed by one or two labs in Norway. The method in
use there is not very attractive, since it involves boiling in concentrated
HNO3.
Have any of the list members any experience with alternative methods?
According to my poor knowledge of the subject, determination of
electrolytes can be of interest in discriminating between secretory and
osmotic diarrhea. Does anyone have any views about the usefulness of this
today?
Kind regards
Lars Eikvar
MD, PhD
consultant
Department of clinical chemistry
Ullevaal hospital
Norway
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