Correct Answer: B

Rationale: When a drug is categorized as Category X, it signifies that there are significant risks of fetal abnormalities if taken during pregnancy. For this reason, women of child-bearing age/capacity should use reliable forms of birth control to prevent pregnancy while on the medication. This ensures that the client avoids the potential harm to the fetus. Option A is incorrect because pregnancy tests are not unreliable due to the drug, but rather the risk is related to potential harm to the fetus. Option C is incorrect as avoiding the drug only on days of intercourse does not provide sufficient protection against pregnancy. Option D is incorrect as the need for an endocrinologist is not directly related to the use of Category X drugs.

Correct Answer: B

Rationale: In late-stage Alzheimer's disease, although verbal communication may be challenging or limited, it is essential to maintain communication through talking and non-verbal cues like touching. Limiting communication can lead to feelings of isolation and worsen the emotional well-being of the individual. Choices A, C, and D reflect appropriate care strategies by addressing toileting needs, oral care, and assistance with eating and drinking, which are crucial aspects of caregiving for a client with late-stage Alzheimer's disease.

Correct Answer: B

Rationale: The correct answer is 'the severity of the client's condition and the priority decision.' When determining the method of splinting, it is crucial to consider the severity of the client's condition and make decisions based on their priority. Choice A is incorrect because while the location of the injury and whether it is open or closed are important factors, they do not always dictate the method of splinting. Choice C is incorrect as the number of available rescuers and the type of splints may impact the execution of splinting but do not solely dictate the method. Choice D is incorrect as it suggests that all the factors mentioned dictate the method, but in reality, the severity of the client's condition and the priority decision are the primary factors.

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.

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.