>Reza
>
>If you look back in the history of acid -base correction, tris was used as
>well as or in preference to bicarbonate. Comments about its use were in the
>early Siggaard - Anderson/Astrup book on acid base balance - and I am sure
>were noted elsewhere.
>
>John Fry
>
>Worthing Hospital
Very helpful. Thank you very much indeed.
I know very little about salt balance, so another question if I may: Not
detracting from the necessity of salt repletion in the investigation of
Conn's (many labs advocate a normal salt diet in the days leading to the
test), if serum potassium is low, could it be assumed that there is enough
sodium reaching the distal tubules for exchange with potassium and
therefore the patient may be sodium replete? Phrasing it another way, does
the salt restriction prescribed for the hypertension tend to normalise
serum potassium, and do the one-third or so of the patients with normal
potassium have a disproportionately high number with reduced sodium
intake? I haven't managed to find much in the literature on this.
Thanks,
Reza
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