Nursing Elites

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

• A. potency
• B. efficacy
• C. kinetics
• D. affinity

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. A client is diagnosed with HIV. Which of the following antiviral drug classes are used in the treatment of HIV/AIDS?

• A. nucleoside reverse transcriptase inhibitors
• B. protease inhibitors
• C. HIV fusion inhibitors
• D. all of the above

Correct answer: D

Rationale: All of the provided choices are antiviral drug classes used in the treatment of HIV/AIDS. Nucleoside reverse transcriptase inhibitors, such as tenofovir and emtricitabine, work by interfering with the virus's ability to replicate. Protease inhibitors, like atazanavir and darunavir, block an enzyme that HIV needs to make copies of itself. HIV fusion inhibitors, for instance, enfuvirtide, prevent HIV from entering human cells. Therefore, 'all of the above' is the correct answer as all the listed drug classes are commonly used in managing HIV infections. Choices A, B, and C are all essential components of antiretroviral therapy for HIV, targeting different stages of the virus's life cycle. The combination of drugs from these classes is often recommended to effectively control HIV replication and reduce viral load.

3. The client has a new prosthetic hip, and the nurse is repositioning them. Which position should be avoided to prevent injury to the new prosthetic hip?

• A. abduction of the hip
• B. adduction of the hip
• C. flexing the hip at 80� flexion
• D. flexing the hip at 90�

Correct answer: B

Rationale: The correct answer is 'adduction of the hip.' When a client has a new prosthetic hip, adduction (movement of the leg toward the midline of the body) should be avoided to prevent injury to the new prosthetic hip. Abduction (movement of the leg away from the midline) is typically allowed and may even be encouraged. Flexing the hip at certain degrees is acceptable, but adduction should be avoided to prevent complications or dislocation of the prosthetic hip. Therefore, options A, C, and D are incorrect because they do not pose a direct risk to the new prosthetic hip compared to adduction.

4. When the healthcare provider is determining the appropriate size of a nasopharyngeal airway to insert, which body part should be measured on the client?

• A. corner of the mouth to tragus of the ear
• B. corner of the eye to top of the ear
• C. tip of the chin to the sternum
• D. tip of the nose to the earlobe

Correct answer: D

Rationale: A nasopharyngeal airway is measured from the tip of the nose to the earlobe. This measurement ensures that the airway is of the correct length to reach the nasopharynx without being too long or too short. Choices A, B, and C are incorrect as they do not provide the appropriate measurement for selecting the correct size of a nasopharyngeal airway. The distance from the corner of the mouth to the tragus of the ear (Choice A) is used to measure for an oropharyngeal airway, not a nasopharyngeal airway. Similarly, the other choices (B and C) do not correlate with the correct measurement of a nasopharyngeal airway.

5. What is distraction therapy?

• A. Focusing one's attention on stimuli other than pain.
• B. Cognitive reappraisal.
• C. The replacement of positive images of pain with other images.
• D. The use of medication and meditation.

Correct answer: A

Rationale: Distraction therapy involves directing attention away from pain towards positive stimuli, which can help reduce the perception of pain. Choice A is the correct answer as it accurately defines distraction therapy. Cognitive reappraisal (Choice B) involves changing the way one thinks about a situation to alter its emotional impact, which is different from distraction therapy. Choice C is incorrect because distraction therapy does not involve replacing images of pain with other images, but rather focusing on something unrelated. Choice D is incorrect as distraction therapy does not necessarily involve medication or meditation, but rather the redirection of attention.

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