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. While Fluorouracil (5FUĀ®) is being infused, a client complains of burning at the IV site. What should the nurse do first?

Correct answer: C

Rationale: The correct first action for the nurse is to inspect the IV site. This is important to assess for any signs of infiltration or extravasation, which could be causing the burning sensation. Aspirating the IV site for blood return (Choice A) may not be the initial priority as it does not directly address the client's complaint of burning. Slowing the infusion (Choice B) may help alleviate discomfort but should not be done before inspecting the site. Stopping the infusion (Choice D) may be necessary, but inspecting the site should come first to determine the appropriate course of action.

3. The manic client has just interrupted the group session with the counselor for the 4th time, explaining that she already knows this information on 'dealing with others when you are down' and constantly gets up and goes to the front. What should the nurse do at this time?

Correct answer: A

Rationale: In this situation, it is important to redirect the client's energy and focus. Engaging the client in a purposeful activity like making another pot of coffee can help distract them from disruptive behavior and provide an outlet for their excess energy. This choice also helps in maintaining a therapeutic environment by involving the client in a constructive task. Asking the client to reflect on their behavior (Choice B) might not be effective during a manic episode as the client may not be in a state to critically analyze their actions. Asking the group to tell the client how they feel (Choice C) can escalate the situation and may not be appropriate in this context. Instructing the client to perform jumping jacks and count aloud (Choice D) may not address the underlying issue of disruptive behavior and may not be suitable for the current situation.

4. The factor that most determines drug distribution is:

Correct answer: A

Rationale: The correct answer is 'vascular perfusion of the tissue or organ.' Drug distribution is primarily determined by how well the circulatory system delivers the drug to various tissues and organs. Adequate perfusion ensures proper distribution of the drug throughout the body. While the salt form (choice B), drug interactions (choice C), and steady state (choice D) can influence drug efficacy and metabolism, they are not as crucial as vascular perfusion for the initial distribution of a drug.

5. Which symptom is the client who self-administered an overdose of acetaminophen most likely to exhibit?

Correct answer: C

Rationale: When a client self-administers an overdose of acetaminophen, the liver is primarily affected. Jaundiced conjunctiva, which is yellowing of the eyes, is a common symptom of liver damage. Pink frothy sputum is typically associated with conditions like pulmonary edema, not acetaminophen overdose. Seizure activity is not a common symptom of acetaminophen overdose but can be seen in other toxicities. Diaphoresis and fever are more generalized symptoms and not specific to acetaminophen overdose.

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