Correct Answer: A

Rationale: The correct answer is A. Warfarin is an anticoagulant that increases the risk of bleeding during surgery. It is crucial for the provider to be informed about the client taking warfarin to adjust the treatment plan accordingly. Choices B, C, and D are not as critical to report for surgical planning. A history of hypertension (B) is important but may not require immediate intervention for surgery. Eating a light breakfast 2 hours prior (C) is a normal preoperative instruction. Smoking history (D) is relevant for overall health assessment but is not as urgent as the use of warfarin before surgery.

Correct Answer: A

Rationale: Correct answer: Applying zinc oxide ointment to the irritated area is the most appropriate action for diaper dermatitis. Zinc oxide is a barrier cream that helps protect the skin and promote healing. Choice B is incorrect because using store-bought baby wipes may contain chemicals or fragrances that can further irritate the skin. Choice C is incorrect as talcum powder can also worsen the condition by drying out the skin. Choice D is incorrect because a warm compress is not typically used for diaper dermatitis; it may provide relief for other conditions but is not the best option for diaper dermatitis.

Correct Answer: A

Rationale: The correct answer is A: Serotonin syndrome. When a client takes St. John's wort, a herbal supplement, along with citalopram, a selective serotonin reuptake inhibitor (SSRI), there is a risk of developing serotonin syndrome. Serotonin syndrome is a potentially life-threatening condition characterized by symptoms such as confusion, agitation, fever, sweating, shivering, tremors, muscle rigidity, and in severe cases, seizures and coma. It is crucial for the nurse to monitor the client for these symptoms. Choices B, C, and D are incorrect because tardive dyskinesia is associated with long-term use of antipsychotic medications, pseudo-parkinsonism is a side effect of antipsychotic medications like haloperidol, and acute dystonia is a side effect of antipsychotic medications characterized by sustained muscle contractions.

Correct Answer: A

Rationale: The correct recommendation for a client with hypertension is to limit sodium intake to no more than 1,500 mg per day. This helps manage hypertension by reducing fluid retention and lowering blood pressure. Choice B is a good recommendation as well, but the primary focus for hypertension management in this scenario is limiting sodium. Choices C and D are incorrect as dairy products and carbohydrates are not directly linked to hypertension.

Correct Answer: C

Rationale: The correct action to maintain a sterile field is to avoid reaching over it. This prevents contamination of the sterile environment by reducing the risk of unintentionally dropping microorganisms from non-sterile areas onto the sterile field. Opening sterile packages using the flap closest to your body first (choice A) is a good practice but not directly related to maintaining the sterile field. Donning sterile gloves before opening the sterile package (choice B) is crucial for maintaining sterility but not specific to maintaining the sterile field. Placing sterile items at least 2.5 cm (1 in) from the edge of the sterile field (choice D) is important to prevent accidental contamination, but it is not the primary action to maintain the sterile field.