Dana
New Member
Posts: 85
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Post by Dana on Apr 26, 2009 23:36:22 GMT -5
So, in theory.. with water deprivation...it should drive ADH up. To further prevent water loss? Am I right? Like salt restriction allows aldo to rise. I think we could use a sticky or table about ADH... Thoughts? Laurie Yes this is exactly it Laurie. I still think that urine osmolality along with sodium concentration is a better test though. Rather than testing the main hormone, you're looking further down the chain (urine and sodium) and can see exactly what is happening to the body (dehydration and dilute urine). I know the website diabetesinsipidus.org actually says that serum ADH isn't accurate and that it must be drawn with heparinized blood. (I have no idea what that means). Here's their PDF on a formal water deprivation test. www.diabetesinsipidus.org/water_deprivation_protocol_pdf.pdfI wish my doc had done a test this thorough. If he had, then I wouldn't be questioning my dx every single day. Just today I was like...well maybe I have DI. When my urine could be mistaken for water it makes me wonder. /sigh
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Post by fractal1 on Apr 27, 2009 2:25:18 GMT -5
I think a sticky is a good idea.
Allison, DI is very rare... I think that most with secondary AI have GH deficiency, which also causes excessive thirst. It also engages renin and helps you to retain sodium. My theory - and it's just a theory ;D - is that a lot of those needing florinef and potassium combo are 'patching-up' problems associated with GH deficiency.
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