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Flashcards in Osmotic Pressure Deck (7)
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1

Average osmolarity of ICF and ECF in human body.

290 mOsm, can range from 270 - 300 mOsm

2

What is Normal saline?

0.9% of sodium chloride which is isosmotic to red blood cells?

3

You need to memorize the estimated osmalility equation.

What is it?

Estimated Osmolality = (2x [Na]) + ([glucose]/18) + ([BUN}/2.8)

BUN = Blood urea nitrogen

4

Fancy term for shrinking of RBC due to hyperosmotic gradient.

Crenation

5

What cells do not function well in osmalarity changes?

Neurons, some thirst ones respond better, and overall many cells in the body will not respond well.

6

Reflection Coefficient closer to 1?

Closer to 0?

1 = Tonocity and Osmolarity match

0 = Will not match , solute in question does not provide osmotic pressure

7

Hypotonic solutions cause what to happen to a cell?

Hypertonic?

Hypotonic - water moves in

Hypertonic- water movesout