Correct Answer: B

Rationale: The correct answer is B: 'Avoid smoking and open flames near oxygen.' This information is crucial to prevent fire hazards when using home oxygen therapy. Smoking and open flames near oxygen can lead to serious accidents. Choice A is incorrect because increasing the oxygen flow rate during activity without healthcare provider guidance can be dangerous. Choice C is incorrect as oxygen tanks should be stored in a well-ventilated area, not necessarily warm and dry. Choice D is incorrect as oxygen should not be turned off and on by the client, as it can affect the therapy's effectiveness and cause safety issues.

Correct Answer: D

Rationale: The correct action for the nurse to take when administering medications through a nasogastric (NG) tube is to dissolve medications separately and flush the tube with sterile water. This is important to prevent interactions between medications and ensure accurate administration. Option A is incorrect because tap water may not be sterile and could lead to contamination. Option B is incorrect as it increases the risk of drug interactions and may affect the effectiveness of each medication. Option C is incorrect as 60 mL of water before each medication may not be enough to ensure proper medication delivery and prevent interactions.

Correct Answer: B

Rationale: The correct answer is B: Orange slices. For a client on a mechanical soft diet, foods that are difficult to chew and swallow should be avoided. Orange slices fall into this category due to their texture and potential choking hazard. Steamed carrots, mashed potatoes, and baked chicken are typically suitable for a mechanical soft diet as they can be easily mashed or cut into small, manageable pieces for consumption.

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: A

Rationale: The correct answer is to use the cane on the stronger side. This instruction is important because it provides better support and balance. Placing the cane on the stronger side helps to shift weight off the weaker or injured side, reducing the risk of falls and promoting stability. Choices B, C, and D are incorrect. Using the cane on the weaker side would not provide optimal support. While ensuring the cane has a rubber tip and holding it 1-2 inches from the ground are important, they are not as crucial as using the cane on the stronger side for proper support and balance.