Concept explainers
a.
To determine: The intracellular and interstitial fluid volume of a patient if the total body water volume is 42 L, ECF volume is found to be 12.5 L, and the plasma volume of the patient is 2.7 L.
Introduction: In humans, body fluid is present in different compartments forms. Body fluid in each compartment has its characteristics and functions to perform. These compartments in the body are separated by some form of physical barriers. Fluid in each of these compartments increases or decreases according to the physiological conditions of the body. Two of the main fluid compartments in the body are: Intracellular fluid (ICF) compartment; and Extracellular fluid (ECF) compartment.
b.
To determine: The amount of solute present in the whole body, ECF, ICF, and plasma of the patient.
Introduction: Different body fluids contain different amount of solute particles. Based on the concentration of solute present in the fluid, a concentration gradient is set up between the fluids. This concentration gradient is responsible for the movement of water across the boundaries. The concentration of these solutes is measured in terms of the osmolarity of the fluid.
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