Correct Answer: A

Rationale: The correct action when digitally evacuating a fecal impaction is to insert a lubricated gloved finger and advance along the rectal wall. This technique helps prevent trauma and effectively dislodge the impacted stool. Choice B, applying lubricant and stimulating peristalsis, is incorrect as it does not directly address the evacuation of the impacted stool. Choice C, applying pressure to the abdomen, is inappropriate and may cause discomfort or harm to the client. Choice D, increasing fluid intake before the procedure, is not directly related to the immediate evacuation of the fecal impaction.

Correct Answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.

Correct Answer: C

Rationale: The correct intervention for a client with deep vein thrombosis (DVT) is to elevate the affected extremity above the level of the heart. This position promotes venous return, reduces swelling, and helps prevent complications such as pulmonary embolism. Applying cold compresses (choice A) can vasoconstrict blood vessels, potentially worsening the condition. Massaging the affected extremity (choice B) can dislodge the clot and lead to serious complications. Keeping the affected extremity dependent when sitting (choice D) can hinder venous return and exacerbate the DVT.

Correct Answer: B

Rationale: To prevent aspiration in clients with a nasogastric tube receiving intermittent enteral feedings, the nurse should elevate the head of the bed to 45 degrees during feedings. This position helps reduce the risk of regurgitation and aspiration of the feeding contents. Administering a bolus feeding over 10 minutes (choice A) may not prevent aspiration as effectively as elevating the head of the bed. Flushing the tube with sterile water before feedings (choice C) is important for tube patency but does not directly prevent aspiration. Positioning the client on the left side during feedings (choice D) is not the recommended action to prevent aspiration; elevating the head of the bed is more effective.

Correct Answer: D

Rationale: The correct answer is to determine the pain level first. Assessing the client's pain is crucial before any procedure to ensure their comfort and safety. Applying skin preparation to wound edges (Choice A) may come later in the process after ensuring the client's comfort. Donning sterile gloves (Choice B) is important before directly handling the wound but can follow pain assessment. Normal saline (Choice C) might be used during wound cleansing but is not the initial step in this situation.