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Multiple Choice
Most intravenous solutions are _____ with respect to blood cells?
A
hypotonic
B
hypertonic
C
isotonic
D
supersaturated
Verified step by step guidance
1
Understand the terms: Hypotonic solutions have a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell. Hypertonic solutions have a higher concentration of solutes, causing water to leave the cell. Isotonic solutions have the same concentration of solutes as the cell, resulting in no net movement of water.
Recognize that intravenous (IV) solutions are used to maintain fluid balance in the body and should not cause cells to shrink or swell.
Consider the purpose of IV solutions: They are designed to match the osmolarity of blood to avoid disrupting the balance of fluids in and out of cells.
Identify that isotonic solutions are those that have the same osmotic pressure as blood, preventing any net movement of water into or out of the cells.
Conclude that most intravenous solutions are isotonic with respect to blood cells to ensure that there is no net movement of water across cell membranes, maintaining cellular integrity.