Correct Answer: A

Rationale: The correct response is A: 'Do not expose other children as the virus is very contagious even without direct contact.' RSV is highly contagious, especially in young children. Allowing the infected child to attend a birthday party can put other children at risk of contracting the virus. Choice B is incorrect as RSV can remain contagious for a period of time. Choice C is not sufficient, as wearing a mask may not entirely prevent the spread of the virus. Choice D is inaccurate, as children under 5 months are not the only ones susceptible to RSV; all young children are at risk.

Correct Answer: C

Rationale: The correct answer is C: History of alcohol or tobacco use. A history of alcohol or tobacco use is significant as both are risk factors for esophageal cancer or other esophageal disorders that could cause difficulty swallowing (dysphagia). This information helps in evaluating the underlying cause of the symptom. Choices A, B, and D are less relevant in this context. While a past traumatic injury to the neck could potentially cause swallowing difficulties, given the chronic nature of the symptom in this case, it is more important to focus on potential risk factors associated with esophageal disorders like alcohol and tobacco use. Daily consumption of hot beverages and daily dietary intake of roughage are less likely to be directly related to the client's current swallowing issue.

Correct Answer: A

Rationale: The correct answer is A: Hyponatremia. Hyponatremia, characterized by low sodium levels in the blood, can lead to cerebral edema and seizures due to water shifting into brain cells. Hypercalcemia (choice B) does not commonly cause seizures but can result in muscle weakness and cardiac arrhythmias. Hyperkalemia (choice C) may lead to muscle weakness and cardiac arrhythmias, but it is less frequently associated with seizures. Hypokalemia (choice D) is linked to muscle weakness and cardiac arrhythmias but is not typically related to seizures.

Correct Answer: A

Rationale: Massaging the lower back and positioning the client in proper alignment can help relieve muscle tension and enhance the effectiveness of analgesics by providing additional comfort and promoting better pain management. This intervention directly addresses the site of pain and can improve the medication's efficacy. Choices B, C, and D are incorrect because while they may have benefits in other situations, they are not directly related to promoting the effectiveness of analgesics in clients with low back pain. Encouraging ambulation and deep breathing, assisting with range of motion exercises, and offering water and high-fiber foods are important for overall patient care but are not specific to enhancing analgesic effectiveness in this context.

Correct Answer: B

Rationale: The correct answer is B: Elevated temperature and chills. These symptoms are indicative of a transfusion reaction, which can be severe and life-threatening. It is crucial to stop the transfusion immediately and notify the healthcare provider for further assessment and management. Elevated temperature and chills are classic signs of a transfusion reaction, specifically indicating a possible febrile non-hemolytic reaction. Choice A, a slight increase in blood pressure, is not typically a reason to stop a transfusion unless it is a significant sudden increase. Mild nausea (Choice C) and a slight headache (Choice D) are common side effects of blood transfusions and are not primary indicators of a transfusion reaction that require immediate cessation of the transfusion.