Correct Answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial to monitor in patients receiving warfarin therapy. INR measures the blood's ability to clot and is used to ensure that patients are within the therapeutic range for warfarin therapy. This is important to prevent both clotting disorders and bleeding complications. Monitoring potassium levels (choice B) is not directly related to warfarin therapy. Platelet count (choice C) and sodium levels (choice D) are important parameters but are not as critical to monitor specifically for patients on warfarin therapy.

Correct Answer: A

Rationale: The correct answer is to administer IV fluids. This intervention is the priority as it helps rapidly restore hydration in patients with dehydration by delivering fluids directly into the bloodstream. Monitoring intake and output (choice B) is important but comes after providing immediate fluid resuscitation. Administering oral fluids (choice C) may not be sufficient for a patient with dehydration who requires rapid rehydration. Providing electrolyte replacement (choice D) is essential but often follows fluid resuscitation to correct any electrolyte imbalances resulting from dehydration.

Correct Answer: B

Rationale: Administering lorazepam is the appropriate intervention for a client experiencing acute alcohol withdrawal. Lorazepam helps reduce agitation and prevent complications during this withdrawal phase. Choice A, providing a low-sodium diet, is not directly related to managing alcohol withdrawal symptoms. Choice C, keeping the client in a supine position, is not necessary and may not address the client's withdrawal symptoms. Choice D, placing the client in restraints, should only be considered if the client is at risk of harming themselves or others, but it is not the primary intervention for managing alcohol withdrawal.

Correct Answer: C

Rationale: Correct! Dry mucous membranes are a common finding in clients with dehydration. Dehydration leads to reduced fluid volume in the body, resulting in dryness of mucous membranes, decreased skin turgor, and thirst. Bradycardia (slow heart rate) is not typically associated with dehydration, as the body tries to compensate for decreased fluid volume by increasing heart rate. Hypotension (low blood pressure) is a possible finding in dehydration due to reduced circulating volume. Tachypnea (rapid breathing) is more commonly seen in conditions like respiratory distress or metabolic acidosis, rather than dehydration.

Correct Answer: B

Rationale: The correct instruction that the nurse should include for a client postoperative following cataract surgery is to avoid bending at the waist. Bending at the waist can increase intraocular pressure, which is not recommended after cataract surgery. Choices A, C, and D are incorrect because lying flat for 24 hours after surgery may not be necessary, wearing an eye patch at night for a week is not a standard postoperative instruction for cataract surgery, and sleeping on the affected side may not necessarily reduce discomfort and can increase pressure on the eye.