The nurse is caring for a client who has begun vomiting.
The nurse is aware that which part of the client’s brain has been stimulated?

Limbic system.

Hypothalamus.

Chemoreceptor trigger zone (CTZ).

Medulla oblongata.

Answer and Explanation

The Correct Answer is C

Pathophysiologic pathways involved in emesis - UpToDate

The CTZ has to be stimulated in order for vomiting to occur. The CTZ is located in the area postrema of the medulla oblongata and receives input from various sources, such as the blood, the vestibular system, and the gastrointestinal tract.

Choice A is wrong because the limbic system involves emotion, not vomiting or other forms of GI function.

Choice B is wrong because the hypothalamus regulates various functions such as body temperature, hunger, thirst, and circadian rhythms, but not vomiting.

Choice D is wrong because the medulla oblongata is responsible for autonomic functioning such as ventilation, cardiac conduction, and vomiting, but it is not the site of stimulation for vomiting.

The medulla oblongata contains the vomiting center, which receives signals from the CTZ and other sources and initiates the act of vomiting.

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Correct Answer is B

Explanation

This is because a nutritious diet provides adequate fiber and nutrients for the GI tract, avoiding alcohol prevents dehydration and irritation of the GI mucosa, and cautious use of laxatives prevents dependency and electrolyte imbalance.

Choice A is wrong because caffeine can stimulate the GI motility and cause diarrhea or cramps.

Choice C is wrong because some prescription medications can affect the GI function, such as antibiotics, opioids, or antacids.

Increased fluid intake is good, but not enough to promote optimal GI function.

Vigorous exercise can also cause GI distress or dehydration.

Choice D is wrong because adequate fluid intake is essential for preventing constipation and maintaining hydration.

Exercise can also help with bowel movements and overall health.

Normal ranges for GI function vary depending on the individual, but generally, a person should have at least one bowel movement every 3 days and no more than 3 bowel movements per day.

The stool should be soft, formed, and easy to pass.

A. A client being treated for a traumatic brain injury. B. A client with a history of ischemic heart disease. C. A pediatric client. D. A client with type 2 diabetes.

Correct Answer is A

Explanation

This is because phenothiazines are contraindicated in patients with suspected or established subcortical brain damage. Phenothiazines can cause central nervous system effects such as drowsiness, dizziness, and extrapyramidal symptoms that may worsen the condition of a client with a brain injury.

Choice B is wrong because phenothiazines are not contraindicated in clients with ischemic heart disease.

However, they should be used with caution as they can cause hypotension and cardiac arrhythmias.

Choice C is wrong because phenothiazines are not contraindicated in pediatric clients.

However, they should be used with caution as they can cause sedation, anticholinergic effects, and paradoxical excitement.

Choice D is wrong because phenothiazines are not contraindicated in clients with type 2 diabetes.

However, they should be used with caution as they can cause hyperglycemia and alter the effects of antidiabetic drugs.

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The nurse is caring for a client who has begun vomiting. The nurse is aware that which part of the client’s brain has been stimulated?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is A

Explanation

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The nurse is caring for a client who has begun vomiting.
The nurse is aware that which part of the client’s brain has been stimulated?