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Old 05-22-2014
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Default CHF and Na

it is logically , that in CHF , the increase in rening angiotensin lead to increase Na reabsorption , so to increase S. NA , but in uwrold it says that S.NA is decreased and it is a bad prognostic sign , can anyone explain this to me?
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Originally Posted by hydrocephalus View Post
it is logically , that in CHF , the increase in rening angiotensin lead to increase Na reabsorption , so to increase S. NA , but in uwrold it says that S.NA is decreased and it is a bad prognostic sign , can anyone explain this to me?
during CHF there is ADH release as well
and there is proportionately more water absorption than Na (hypotonic gain)-this drops the plasma Na concentration
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during CHF there is ADH release as well
and there is proportionately more water absorption than Na (hypotonic gain)-this drops the plasma Na concentration
Yes. And then that causes edema and starts another cycle of low cardiac output and more aldosterone more ADH and no aldosterone escape.
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Old 05-23-2014
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Originally Posted by MedicalExaminer View Post
during CHF there is ADH release as well
and there is proportionately more water absorption than Na (hypotonic gain)-this drops the plasma Na concentration


thanks alot , so now it si the hyponatremic effect that predominate
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