# Osmotic diuresis (What is my lecture note saying)

1. Jul 18, 2010

### sameeralord

Hello everyone,

This is what my lecture note is saying about osmotic diuresis.

Water retention in tubules-----> decreased sodium concentration in tubules----> increased concentration gradient of sodium--->sodium pushing limit reached----->decreased sodium absorption---->increased sodium in tubule----> more water retention in tubule

Ok I understand the first 2 points but then how does the concentration gradient of sodium suddenly increase and what is meant by sodium pushing limit reached. Sodium carriers saturated? Please explain to me if you understand this. Thank you