Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 34

The unit of osmolality measured in the clinical laboratory is the:

A. Osmole

B. Milliosmole

C. Molecular weight

D. Ionic charge

Step 1 of 2

Osmolarity:

The solution’s concentration uttered as total number of solute particles per liter.

• Unit of osmolality is osmole.

• The term osmolality and osmolarity are same.

Osmole:

• It is a non SI (International System) unit.

• Osmole is mole in solution which contributes to the osmotic pressure of a solution.

Osmotic pressure:

• Pressure applied in a solution to prevent inner movement of water in semi-permeable membrane.

• Osmolality unit is osmole which is measured in clinical laboratory.

Therefore, unit of osmolality measured in clinical laboratory is “osmole”. Hence, the correct answer is option .