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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which demographic factor contributes to the risk of PONV?

Being a male adult
Being a pediatric patient under 3 years
Being a non-smoker
Being a pregnant individual

The correct answer is: Being a non-smoker

The correct choice reflects an important aspect of demographic factors that influence the risk of postoperative nausea and vomiting (PONV). Non-smokers generally have a higher risk of experiencing PONV compared to smokers. Nicotine, found in tobacco products, has been shown to have antiemetic properties, providing a protective effect against PONV. Smokers often have lower levels of certain neurotransmitters related to nausea and vomiting, which may explain their reduced risk in comparison to non-smokers. Being a male adult does not inherently increase the risk of PONV when compared to female patients, who often have more pronounced PONV due to hormonal factors. Pediatric patients under 3 years are typically at lower risk of PONV due to their unique physiology, although this can vary based on individual circumstances. Pregnant individuals are indeed at a higher risk for PONV due to hormonal changes and the effects of pregnancy on the gastrointestinal system, making the dynamics of their condition pertinent. Understanding these nuances helps clarify the demographics associated with the risk of PONV, emphasizing the connection between smoking status and nausea outcomes.