F/E 1 Flashcards
Aldosterone is a _____ and causes you to retain ______
steroid
Na and Water
Diseases with too MUCH aldosterone
Cushings, Hyperaldoseronism
Diseases with too LITTLE aldosterone
Addisons
What has the opposite function of aldosterone
ANP (Atrial Natriuretic Peptide)
Causes excretion of Na and water
Function of ADH
Retain WATER
Where is ADH produced
Pituitary gland
Problems with too MUCH ADH
Retain water –> Fluid vol overload
SIADH
Too much ADH causes urine and blood to be what
Too much water in the body! Not excreting
Urine: Concentrated
Blood: Diluted
Problems with too LITTLE ADH
Excrete water –> Fluid vol deficit
DI (excessive thirst and pee)
Too little ADH causes the blood and urine to do what
Not enough water in the body!!
Urine: Diluted
Blood: Concentrated (No water buffer)
What 3 things are affected with concentrated and dilution
Urine specific gravity
Sodium
Hematocrit
Concentrated: # go UP
Dilute: # go DOWN
Where is ADH produced
Pituitary gland
What kind of things are we going to think about when there is ADH problems
Things that will change ICP - procedures or trauma to the head
With fluid retention, what kind of problems are we going to think about first
HEART
How does bedrest stimulate diuresis
It causes more blood flow to return to the R atrium, which produces ANP to help the body dieresis and decrease the production of ADH
