The RBC osmolarity of a patient is 300 mOsm/L and is given 1L of distilled water and starts with 3L of plasma.

What is the plasma osmolarity after infusion mixes with plasma but before water enters her RBC?

Once infused water equilibrated between plasma nad RBA what is her plasma and RBC osmolarity?

How much would her RBC volume change?

1 answer

1.plasma osmolarity
distilled waters quantity of salutes is 0 and the patients quantity would be 900 at 3L and 300osm/l. making the pre- equilibrium values of plasma: volume-4 Quantity:900 Concentration(mosm/l):225 since concentraion=Quantity/volume.