which physiologic mechanism best describes the function of the sodium potassium pump
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Nursing Elites

NCLEX-PN

Quizlet NCLEX PN 2023

1. Which physiologic mechanism best describes the function of the sodium-potassium pump?

Correct answer: A

Rationale: Active transport is the correct answer as it accurately describes the process involved in the sodium-potassium pump. The pump utilizes energy to move ions against their concentration gradient, maintaining cellular concentrations. Diffusion (choice B) is a passive process where substances move from an area of higher concentration to lower concentration. Filtration (choice C) involves the movement of solutes based on pressure gradients. Osmosis (choice D) is the movement of water across a semipermeable membrane.

2. A healthcare provider is caring for a patient who has experienced burns to the right lower extremity. According to the Rule of Nines, which of the following percentages most accurately describes the severity of the injury?

Correct answer: C

Rationale: According to the Rule of Nines, the right lower extremity accounts for 18% of the total body surface area. The Rule of Nines divides the body into regions, each representing 9% or a multiple of 9%, allowing for a quick estimation of the extent of burns. In this case, the correct answer is 18% as it corresponds to the percentage allocated for each lower extremity. Choices A, B, and D are incorrect as they do not match the standard allocation for the right lower extremity in the Rule of Nines.

3. Which of the following nursing diagnoses is most appropriate for the client experiencing acute pancreatitis?

Correct answer: C

Rationale: Acute Pain is the most appropriate nursing diagnosis for a client experiencing acute pancreatitis because it is a common symptom associated with this condition. Pancreatitis often presents with severe abdominal pain that may radiate to the back. Confusion, Latex Allergy, and Constipation are not typically associated with acute pancreatitis. Confusion may occur in severe cases of pancreatitis with complications, but acute pain is the priority nursing diagnosis due to its prevalence and impact on the client's well-being.

4. The nurse is teaching a community health class for cancer prevention and screening. Which individual has the highest risk for colon cancer?

Correct answer: B

Rationale: A family history of colon polyps and/or colon cancer is a significant risk factor for developing colon cancer. Individuals with a family history are more likely to develop colon cancer due to genetic predisposition. While other factors like irritable bowel syndrome, cirrhosis of the liver, and history of colon surgery may contribute to an increased risk of colon cancer, having a family history of colon polyps is the highest risk factor. Irritable bowel syndrome does not directly increase the risk of colon cancer. Cirrhosis of the liver is associated with liver cancer rather than colon cancer. A history of colon surgery may reduce the risk of colon cancer in some cases by removing precancerous polyps.

5. The nurse observes a nursing assistant performing AM care for a client with a new leg cast. Which action by the assistant will the nurse intervene?

Correct answer: B

Rationale: The correct answer is covering the affected leg with a blanket to avoid chills. Covering the leg with a blanket can prevent the evaporation of heat from the new cast, which can lead to skin irritation or discomfort. Lifting the affected leg with the palms of the hand is appropriate as it helps in providing support and prevents unnecessary pressure on the cast. Placing plastic over the groin prior to bathing is also acceptable to protect the area from getting wet. Elevating the cased leg on two pillows helps reduce swelling and promotes circulation, making it a suitable action.

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