Lec 4 Sodium Flashcards
1
Q
What are the % of body fluid intracellular vs extracellular [interstitial, plasma, trancellular]?
A
intracellular = 60% extracellular = 40% - interstitial = 28% - plasma = 8% - transcellular = 4%
2
Q
How can you approximate osmolality if normal BUN and glucose?
A
osmolality = Na x 2
3
Q
What is effect of Na intake on Na excretion?
A
Na intake = Na excretion
if change Na –> will take 2-3 days to reach Na balance again
4
Q
Where are the afferent volume receptors?
A
- high pressure arterial volume receptors
- intrathoracic
