A charge nurse is reinforcing teaching to a group of nurses about diffusion. Which of the following statements should the charge nurse include in their teaching about diffusion?

"Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration."

"Diffusion is the movement of particles between areas of equal concentrations."

"Diffusion is the movement of water from an area of higher concentration of water to an area of lower concentration of water."

"Diffusion is the movement of particles from an area of lower concentration of particles to an area of higher concentration of particles."

Answer and Explanation

The Correct Answer is A

A. "Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.": This statement accurately describes diffusion. Molecules move down their concentration gradient from areas of higher concentration to areas of lower concentration until equilibrium is reached.

B. "Diffusion is the movement of particles between areas of equal concentrations.": Diffusion does not occur between areas of equal concentration as there is no concentration gradient to drive the movement.

C. "Diffusion is the movement of water from an area of higher concentration of water to an area of lower concentration of water.": This describes osmosis, not diffusion. Osmosis specifically refers to the movement of water across a semipermeable membrane.

D. "Diffusion is the movement of particles from an area of lower concentration of particles to an area of higher concentration of particles.": This is incorrect as diffusion occurs from higher to lower concentration, not the reverse.

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Correct Answer is ["C","D"]

Explanation

A. Repeat blood serum potassium: While it’s important to monitor potassium levels, the immediate priority when preparing to administer potassium is ensuring safe administration practices, not rechecking levels before initiating therapy.

B. Educate client regarding high-potassium food sources: Client education is important for long-term management but is not a priority when preparing for intravenous potassium replacement in an acute setting.

C. Cardiac monitoring during infusion: Potassium affects cardiac conduction, and rapid correction can lead to arrhythmias. Continuous cardiac monitoring is necessary to detect any life-threatening arrhythmias during the infusion.

D. Ensure that the client's urine output is at least 1 mL/kg/hour: Adequate urine output ensures that the kidneys are functioning and capable of excreting excess potassium, reducing the risk of hyperkalemia.

E. Ensure potassium infusion is prepared with 5% dextrose solution: Potassium should not be mixed with dextrose, as it can increase insulin release, causing potassium to shift into cells and worsen hypokalemia.

A. Hypothermia B. Bradycardia C. Pulse deficit D. Tachypnea

Correct Answer is D

Explanation

A. Hypothermia: Pneumonia typically presents with fever rather than hypothermia. Fever is a common response to infection and inflammation.

B. Bradycardia: Pneumonia usually causes tachycardia rather than bradycardia. Tachycardia is a compensatory response to improve oxygen delivery to tissues.

C. Pulse deficit: A pulse deficit is not a common finding in pneumonia. It is more associated with conditions like atrial fibrillation.

D. Tachypnea: Tachypnea, or rapid breathing, is a common sign of pneumonia. It reflects the body’s attempt to improve oxygenation and compensate for impaired gas exchange.

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A charge nurse is reinforcing teaching to a group of nurses about diffusion. Which of the following statements should the charge nurse include in their teaching about diffusion?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assisting with preparations for administering intravenous potassium replacement supplements to a client who has a potassium level of 2.5 mEq/L. Which of the following actions should the nurse plan to include? (Select all that apply.)

Correct Answer is ["C","D"]

Explanation

A nurse is collecting data on a client who has pneumonia. Which of the following findings should the nurse expect?

Correct Answer is D

Explanation

A nurse is collecting data for a client who has acute respiratory distress syndrome (ARDS). Which of the following findings should the nurse expect?

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