The nurse is caring for a patient with acute renal failure with an elevated potassium level
The health care provider orders administration of insulin that causes potassium to return to the cell, thereby lowering serum potassium levels and the risks associated with hyperkalemia. The nurse recognizes this as a type of what? A) Passive transport
B) Active transport
C) Osmosis
D) Diffusion
A
Feedback:
Moving potassium back into the cell, an area with a higher concentration gradient than the bloodstream, requires energy. Insulin helps to activate the sodium?potassium pump. Passive transport is a means of moving substances in and out of the cell without the use of energy. Potassium levels are elevated and will not diffuse into the cell independently because potassium levels are higher inside the cell than outside and require energy to cross the concentration gradient. Osmosis involves diffusion of water.
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