Sodium Regulation Flashcards
1
Q
Total Body Water =
A
= 0.6 L/Kg in a man
= 0.5 L/Kg in a woman
2
Q
What is water balance regulated by ?
A
Plasma Osmolality
3
Q
Too much water =
A
Low plasma Na conc = Hyponatremia
4
Q
Too little water =
A
= Hypernatremia - high plasma Na concentration
5
Q
What is the marker for serum osmolality ?
A
Serum conc of Na
6
Q
How is serum osmolality regulated ?
A
By regulating body water
7
Q
What is total body Na synonomous with ?
A
ECFV
8
Q
What is the major effector for osmoregulation ?
A
Thirst
9
Q
What are the major effectors in Volume regulation ?
A
ADH and Thirst
