Correct Answer: B

Rationale: The correct action for the nurse to take with the unused portion of a narcotic medication after administration is to discard it with a witness present. This procedure is necessary to comply with controlled substance regulations and prevent diversion or misuse of the medication. Storing it in the medication cart for later use is inappropriate as it can lead to unauthorized access. Returning it to the pharmacy is not recommended as the medication has already been dispensed. Reporting it to the provider is not the standard procedure for disposing of controlled substances.

Correct Answer: B

Rationale: The correct answer is B: Decrease in elasticity. As individuals age, their skin tends to lose elasticity, becoming less flexible. This results in wrinkles and sagging skin. Option A, increase in oil production, is not typically an expected integumentary change in older adults. Option C, increase in pigmentation, may occur due to sun exposure or age spots but is not a universal change. Option D, decrease in moisture levels, is not a primary integumentary change associated with aging.

Correct Answer: B

Rationale: The correct answer is to discontinue the infusion. Pain, redness, and warmth at the IV site are signs of phlebitis, which is inflammation of the vein. Continuing the infusion can further irritate the vein and lead to complications. Increasing the IV flow rate would exacerbate the issue by delivering more irritants to the vein. Elevating the limb and applying a cold compress are not the appropriate interventions for phlebitis, as discontinuing the infusion is crucial to prevent further harm.

Correct Answer: B

Rationale: Nausea is a common sign of intolerance to enteral feedings and should be addressed promptly. Weight gain (Choice A) is not typically a sign of intolerance to enteral feedings but may indicate other health issues. Constipation (Choice C) is not a common sign of feeding intolerance. Decreased heart rate (Choice D) is not typically associated with intolerance to enteral feedings.

Correct Answer: B

Rationale: The correct answer is B: 'Ensure the cane has a rubber tip.' This instruction is essential for safety as the rubber tip prevents slipping, providing stability. Choice A is incorrect because the cane should be held on the stronger side to provide better support and balance. Choice C is incorrect as the cane should be used on the stronger, more dominant side. Choice D is also incorrect as a cane is not only used on stairs but also for general support and mobility.