Correct Answer: C

Rationale: The correct answer is C: 'Avoid open flames or smoking near oxygen.' This information is crucial to prevent fires because oxygen supports combustion. Choices A, B, and D are incorrect. Choice A is not relevant to oxygen therapy. Choice B is incorrect as oxygen should not be turned off when in use as prescribed. Choice D is incorrect because adjusting the oxygen flow rate without healthcare provider guidance can be dangerous.

Correct Answer: C

Rationale: The correct answer is to identify the client's needs first. This allows the nurse to prioritize interventions based on the assessment findings. Administering prescribed antibiotics (choice A) should be based on a medical prescription and the identified infection. Initiating seizure precautions (choice B) is important but not the immediate priority in this case. Placing the client in isolation (choice D) is premature as the nurse needs to first assess and address the client's condition.

Correct Answer: B

Rationale: The correct answer is to discontinue the infusion. The symptoms described - pain, redness, and warmth along the vein - are indicative of phlebitis, which is inflammation of the vein. Continuing the infusion can lead to further complications. Flushing the IV line, elevating the limb, or applying a cold compress do not address the underlying issue of phlebitis and may not be sufficient to resolve the problem. Therefore, the priority action is to discontinue the infusion to prevent worsening of the condition.

Correct Answer: C

Rationale: The correct answer is C: Perform weight-bearing exercises. Weight-bearing exercises help maintain bone density and reduce the risk of osteoporosis in older adults. Choice A, increasing intake of vitamin C, is not directly related to osteoporosis prevention. Choice B, avoiding weight-bearing exercises, is incorrect as weight-bearing exercises are beneficial for bone health. Choice D, limiting sun exposure, is not a key factor in osteoporosis prevention as moderate sun exposure is important for vitamin D synthesis which is essential for bone health.

Correct Answer: B

Rationale: Fresh fruit is a good option for clients on a low-sodium diet as it is naturally low in sodium. Canned soup, processed meats, and frozen meals tend to be high in sodium due to added salt and preservatives, making them unsuitable choices for individuals on a low-sodium diet.