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. The nurse is preparing to administer IV Vancomycin to a client. Which of the following nursing actions should be taken first?

Correct answer: D

Rationale: Before administering any medication, including IV Vancomycin, it is crucial to ensure that the client is not allergic to the medication. This is the most critical action to prevent any potential allergic reactions. While performing a physical assessment is important, it may not be as time-sensitive as checking for allergies. Obtaining lab values related to renal function is also significant with Vancomycin due to its potential nephrotoxicity, but ensuring the client's safety by checking for allergies takes precedence. Reviewing peaks and troughs is important for monitoring drug levels, but it is a secondary step compared to checking for allergies prior to administration.

3. A client asks a nurse about the procedure for becoming an organ donor. The nurse provides the client with which information?

Correct answer: C

Rationale: When a person wishes to become an organ donor, they need to understand that anatomic gifts must be made in writing and signed by the individual. The gift must be made by the donor themselves, typically an individual who is at least 18 years old. If the client is unable to sign, the document should be signed by another person and two witnesses. While speaking to a chaplain or informing the healthcare provider may be part of the process, the essential step is to have a written document signed by the client. Choice A is incorrect as it does not address the procedural aspect of becoming an organ donor. Choice B is incorrect as the decision to make an anatomic gift is typically made by the individual themselves, not the next of kin. Choice D is incorrect as simply informing the healthcare provider is not sufficient for the procedure of becoming an organ donor; a written and signed document by the client is necessary.

4. What does carrying a donor card for organ donation mean?

Correct answer: C

Rationale: Carrying a donor card for organ donation signifies that an individual can decide to revoke their decision for organ donation at any point. This choice empowers the individual to change their mind regarding organ donation. The family or legally responsible party of a client still holds decision-making authority in the event that the client is considered for organ donation. When organ donation is being considered, all organs or tissues the donor wishes to donate are evaluated for donation suitability; it's not limited to just one organ or tissue. It's important to note that medical care for an individual is not altered to hasten the declaration of death for organ donation purposes; the focus is on providing immediate care and resuscitation to the individual.

5. A test that can correctly identify those who do not have a given disease is:

Correct answer: A

Rationale: The correct answer is 'specific.' A specific test correctly identifies individuals who do not have a particular disease. In this case, since the lab culture report is negative for the suspected infection, it means the test is good at ruling out the disease. 'Sensitive' (choice B) would be incorrect as sensitivity refers to a test's ability to correctly identify individuals who do have the disease. 'Negative culture' (choice C) is incorrect as it describes the result rather than the test's characteristic. 'Marginal finding' (choice D) is unrelated to the concept of correctly identifying individuals without the disease.

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