Certified Neuroscience Registered Nurse (CNRN) Practice Exam

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Prepare for the CNRN Exam. Test your knowledge with our comprehensive multiple-choice questions and detailed explanations. Boost your confidence and improve your chances of a successful exam outcome!

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Which of the following is a method to achieve adequate hydration to reduce the risk of PONV?

Reduction of fluid intake during surgery
Using IV fluids preoperatively
Scheduled oral hydration
Placing a urinary catheter

The correct answer is: Using IV fluids preoperatively

Using intravenous (IV) fluids preoperatively is indeed an effective method to achieve adequate hydration and reduce the risk of postoperative nausea and vomiting (PONV). During surgery, especially when patients may not be able to take in fluids orally due to anesthesia or other factors, administering IV fluids ensures that they maintain appropriate hydration levels. This helps to support hemodynamic stability and can positively influence recovery outcomes, including the likelihood of experiencing PONV. Adequate hydration helps to maintain electrolyte balance and optimize circulatory volume, which is critical during the stress of surgery. By providing fluid through IV administration, healthcare providers can also adjust fluid types and volumes based on the individual patient's needs or conditions, further reducing the risk of complications such as PONV. This method is particularly beneficial in settings where oral intake is not feasible or where rapid changes in fluid status may occur, ensuring that patients have a stable foundational hydration state as they enter surgery.