helloWhy would body respond to water retention with ALDO? ALDO would increase water retention...+22019-06-04T23:07:17Z
nala_ula@hello, the body's response is to decrease Aldosterone since there is increased volume retention and subsequently increased blood pressure.
This concept confused me a lot, but I ended up just viewing it as separate responses. First, the increased volume retention leads to increase ANP and BNP secretion that lead to decreased Na+ reabsorption in the tubules (page 294 in FA 2019) and second, this increased volume basically leads to increased pressure so lets also decrease aldosterone so there is no Na+ retention (since water comes with it)...
I thought it was counterintuitive to secrete so much Na+ since you're already having decreased serum osmolality (decreased Na+ concentration) because of the water retention, but I'm guessing that this is just another way our body's well intentions end up making us worse XD+62019-06-09T21:15:45Z
compassessee page 344 FA2019 for SIADH. +2019-07-19T16:11:19Z
dickassauthor pasted text straight from FA but the arrows didn't copy over, inverting the original meaning+2019-09-16T23:06:20Z
medninjaThe idea of increasing urine Na is getting rid of water, thats why this mechanism end increasing urine Na secretion even when there are very low serum Na levels. +2019-10-20T15:57:16Z