The Nurse Is Teaching a Patient About the Loss of Potassium

question 26

Multiple Choice

The nurse is teaching a patient about the loss of potassium when taking diuretics.The physician started this patient on spironolactone (Aldactone) .Which of the following is a special characteristic of this diuretic?

• A) It blocks active transport of sodium and potassium excretion.
• B) It is used when there is high renal filtration.
• C) It affects the exchange of sodium and potassium excretion.
• D) It gives a peak effect in diuretic use.

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Definitions:

Semipermeable Membrane

A semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion".

Concentration Gradient

A concentration gradient is a variation in the concentration of a substance across a region, leading to the movement of particles from high to low concentration areas.

Hypotonic Solution

Solution that contains a lower solute (more water) concentration than the cytoplasm of a cell; causes cell to gain water by osmosis.

Cell Wall

A rigid layer that lies outside the plasma membrane of the cells of plants, fungi, and bacteria, providing structural support and protection.