Question

The osmolality of 

A. A solution determines its freezing point. 

B. Intracellular fluid is about twice that of extracellular fluid. 

C. 1.8 per cent sodium chloride is about twice that of normal plasma. 

D. 5 per cent dextrose solution is about five times that of 0.9 per cent saline.

E. Plasma is due more to its protein than to its electrolyte content.

Answer 1

A. True Depression of the freezing point is an index of a solution’s osmolality. 

B. False Their osmolality is the same; osmotic water movements ensure that this is so. 

C. True Plasma has the tonicity of a normal saline solution (0.9 per cent sodium chloride). 

D. False They have the same number of particles. 

E. False Proteins account for only 1 per cent of plasma osmolality.