Correct Answer: D

Rationale: Individuals who are homeless and have a history of alcoholism are at the highest risk for presenting with TB in this scenario. Homeless individuals often live in crowded conditions with poor ventilation, increasing the likelihood of TB transmission. Additionally, alcoholism can weaken the immune system, making individuals more susceptible to developing TB. The other options, such as a daycare worker, an office worker, or a high school student, do not inherently carry the same level of risk factors for TB transmission as being homeless with a history of alcoholism.

Correct Answer: C

Rationale: The correct instruction for a client newly diagnosed with hypothyroidism is to take the medication on an empty stomach. This is important because taking levothyroxine on an empty stomach ensures better absorption of the medication. Choice A, taking levothyroxine at bedtime, is incorrect as it does not promote optimal absorption. Choice B, increasing fiber intake to prevent constipation, is important but not the priority when it comes to medication administration. Choice D, taking a double dose if a dose is missed, is dangerous and should never be advised as it can lead to overdose and serious side effects.

Correct Answer: D

Rationale: Malnourished individuals are at higher risk of severe complications from cold exposure due to their weakened immune system and decreased ability to regulate body temperature. This places them at a greater risk of hypothermia and other cold-related conditions, making them the most vulnerable group in need of shelter. Choice A is not the most critical as the injury is from 3 weeks ago and should have received appropriate medical care by now. Choice B, a young person with diabetes mellitus, while vulnerable, can manage their condition with proper medication and care. Choice C, a middle-aged person with hypertension, may need monitoring but is less susceptible to immediate harm from cold exposure compared to a malnourished individual.

Correct Answer: B

Rationale: The correct answer is B. Warmth and redness in the client's arm suggest infection or thrombosis of the arteriovenous fistula, which requires immediate intervention to prevent complications. A thrill (A) is a normal finding in a functional arteriovenous fistula, indicating good blood flow. A bruit (C) is also a normal finding on auscultation of a functioning arteriovenous fistula, indicating proper blood flow. The absence of a bruit (D) may indicate a non-functioning fistula, which would need further evaluation but does not require immediate intervention as warmth and redness do.

Correct Answer: B

Rationale: The best nursing action is to request a return call from the healthcare provider. When a client is experiencing an extrapyramidal reaction to psychotropic medications, it is crucial to prioritize the client's confidentiality and ensure the information is conveyed to the healthcare provider directly. Leaving a detailed message with a receptionist may compromise the confidentiality of the client's condition. Calling another healthcare provider may delay necessary intervention and continuity of care. Documenting the attempt to call is important for the nurse's records but does not address the immediate need to inform the healthcare provider about the client's condition.