A Student Asks Why Osmolality Is Preferred Over Osmolarity as the Measurement

question 25

Multiple Choice

A student asks why osmolality is preferred over osmolarity as the measurement of osmotic activity in the clinical assessment of individuals. What response by the professor is most accurate?

• A)Plasma contains sodium and chloride, which influence the volume of solution.
• B)Volume affects perfusion more than the weight of solutes.
• C)More of the weight of plasma is influenced by solutes rather than by water.
• D)Osmotic activity depends on the concentration of solutes present in plasma.

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