Correct Answer: C

Rationale: The correct action for a nurse caring for a client with deep vein thrombosis (DVT) is to apply warm compresses to the affected extremity. Warm compresses help reduce swelling and pain in clients with DVT. Administering thrombolytics (Choice A) is not typically done without specific orders due to the risk of bleeding. Massaging the affected extremity (Choice B) can dislodge blood clots and lead to complications. Placing the client in a supine position with the legs elevated (Choice D) may increase the risk of clot dislodgment.

Correct Answer: A

Rationale: Observing facial expressions is essential in assessing pain levels in non-verbal patients. Non-verbal cues, such as facial grimacing, furrowed brows, or clenched jaws, can provide valuable information about the patient's pain experience. Using the Wong-Baker faces scale or assessing heart rate may not be as effective in non-verbal patients as they are unable to communicate their pain through these methods. Asking the patient to rate their pain is also not suitable for non-verbal patients as they may not have the ability to verbally communicate their pain levels.

Correct Answer: B

Rationale: The correct instruction the nurse should include for a client prescribed metformin is to avoid drinking alcohol. Alcohol consumption while on metformin increases the risk of lactic acidosis, a serious condition. Taking metformin at bedtime (choice A) is not a standard instruction. Eating 3 large meals each day (choice C) is not specific to metformin use and may not be suitable for all individuals. Reporting muscle pain (choice D) is important but not directly related to metformin use.

Correct Answer: A

Rationale: The correct answer is to apply a hydrocolloid dressing. Stage 3 pressure ulcers are characterized by full-thickness skin loss involving damage to or necrosis of subcutaneous tissue, which requires a moist environment for healing. Hydrocolloid dressings help maintain a moist wound environment, promote healing, and provide protection. Providing wound debridement may be necessary but is not the priority intervention at this stage. Changing the dressing daily is important for wound care but not the priority over creating an optimal healing environment. Elevating the affected area can help with circulation and reduce swelling, but it is not the priority intervention for a stage 3 pressure ulcer.

Correct Answer: A

Rationale: The correct answer is A. Clients taking warfarin should avoid leafy green vegetables as they are high in vitamin K, which can reduce the effectiveness of the medication. Therefore, the statement 'I will eat more leafy green vegetables while taking warfarin' indicates a need for further teaching. Choice B is correct as regular monitoring of INR levels is necessary for clients on warfarin. Choice C is correct as grapefruit juice can interact with warfarin and should be avoided. Choice D is correct as using a soft toothbrush is recommended to prevent gum bleeding while on warfarin.