the tendency of a drug to combine with its receptor is called
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Nursing Elites

NCLEX-PN

Nclex Questions Management of Care

1. What is the term for the tendency of a drug to combine with its receptor?

Correct answer: D

Rationale: The correct answer is 'affinity.' Affinity refers to the close relationship or mutual attraction between a drug and its receptor, indicating the strength of the drug-receptor bonding. Potency (Choice A) is related to the dose of a drug needed to produce a specific effect. Efficacy (Choice B) refers to a drug's ability to generate the desired effect. Kinetics (Choice C) deals with forces affecting the motion of material bodies or changes in a system, which is not directly associated with the bonding between a drug and its receptor.

2. What intervention should the nurse take for a client who has sustained a hyphema?

Correct answer: B

Rationale: The correct intervention for a client who has sustained a hyphema is to keep them at bed rest, usually with the head of the bed raised. This positioning helps to reduce intraocular pressure and prevent further damage or rebleeding. Instructing the client to wear eye protectors in the future (Choice A) is not the immediate intervention required for a hyphema. Applying atropine eyedrops (Choice C) is not typically indicated for a hyphema. Applying an ice pack to the site of injury (Choice D) is not recommended for a hyphema as it can increase the risk of rebleeding. Therefore, the correct answer is to keep the client at bed rest.

3. What condition is mammography used to detect?

Correct answer: B

Rationale: Mammography is specifically used to detect tumors or abnormal growths, especially in breast tissue. It is not a tool for identifying pain, edema, or epilepsy. Therefore, the correct answer is 'tumor.' Pain is a symptom, edema is swelling, and epilepsy is a neurological disorder; none of these are conditions typically detected through mammography.

4. Which direction given to the nursing assistant is most likely to accomplish the task of getting a urine specimen delivered to the lab immediately after collection?

Correct answer: D

Rationale: Effective delegation depends on clear, concise direction that leaves no room for question or interpretation on the part of the one being delegated to. In this scenario, the most appropriate direction is to ensure the urine specimen is collected promptly and delivered to the lab immediately. Choice A is too vague and does not specify the urgency required. Choice B does not emphasize the immediate need for the specimen to be delivered. Choice C introduces unnecessary medical information that is beyond the scope of a nursing assistant and may cause confusion. Therefore, choice D is the correct answer as it provides clear instructions for immediate action without room for misunderstanding.

5. A nurse is reviewing the notes written by a nurse on a previous shift. Which note in the client's record reflects the correct use of guidelines for documentation?

Correct answer: C

Rationale: Quality documentation and reporting require information to be factual, accurate, complete, current, and organized. Choice C, 'The client's intake was 360 mL,' reflects the correct use of guidelines for documentation as it provides a specific and measurable observation. This note meets the criteria for quality documentation by being specific and quantifiable. Choices A, B, and D lack specificity and quantifiability. Choice A includes a subjective term 'well,' choice B uses 'seems' indicating uncertainty, and choice D uses a vague term 'large' without quantifying the amount.

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