What is the primary purpose of prescribing a histamine receptor antagonist for an infant diagnosed with gastroesophageal reflux?
Prevent reflux.
Reduce gastric acid production.
Prevent hematemesis.
Increase gastric acid production.
The Correct Answer is B
The correct answer is choice B. Reduce gastric acid production.
Choice A rationale:
Preventing reflux is not the primary purpose of prescribing a histamine receptor antagonist. Histamine receptor antagonists work by reducing gastric acid production, which in turn can help alleviate symptoms of gastroesophageal reflux disease (GERD). They do not directly prevent the physical reflux of stomach contents into the esophagus.
Choice B rationale:
The primary purpose of prescribing a histamine receptor antagonist for an infant diagnosed with gastroesophageal reflux is to reduce gastric acid production. Histamine stimulates acid secretion in the stomach, and these medications (e.g., ranitidine, famotidine) block histamine receptors on stomach cells, leading to decreased acid secretion. This helps reduce the acidity of stomach contents that could contribute to esophageal irritation in GERD.
Choice C rationale:
Preventing hematemesis (vomiting blood) is not a primary action of histamine receptor antagonists. While reducing gastric acid production might indirectly help prevent complications such as bleeding due to irritation and inflammation of the esophagus, it's not the main purpose of these medications.
Choice D rationale:
Increasing gastric acid production is the opposite of the intended effect of histamine receptor antagonists. These medications are specifically used to decrease gastric acid production and provide relief from conditions where excess acid is causing problems, such as GERD.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. After taking antibiotics for 24 hours.
Choice A rationale:
Returning to school if no complications develop is not a sufficient guideline for allowing a child with streptococcal pharyngitis to return to school. Streptococcal pharyngitis (strep throat) is highly contagious, and children should be treated with antibiotics to prevent the spread of the infection.
Choice B rationale:
Waiting until the sore throat is better is not a specific enough criterion for returning to school. While the resolution of symptoms is an important factor, it's crucial to ensure that the child has also been on antibiotics for an appropriate duration to reduce the risk of spreading the infection to others.
Choice C rationale:
The recommended guideline is to return to school after taking antibiotics for 24 hours. This timeframe helps ensure that the child's contagiousness is significantly reduced, minimizing the risk of transmitting the infection to classmates and school staff.
Choice D rationale:
Waiting for three days after taking antibiotics is not as precise as waiting for 24 hours. With proper antibiotic treatment, the child's contagiousness decreases rapidly, and waiting for three days might be unnecessary and could potentially result in more missed school days than needed.
Correct Answer is C
Explanation
The correct answer is choice C: "Salt restriction."
Choice A rationale:
The requirement of a high protein diet is not typically indicated for a child with nephrosis. Nephrosis, a condition characterized by excessive protein in the urine, indicates a need to reduce protein intake to alleviate kidney stress and proteinuria.
Choice B rationale:
A low fat diet is not a specific requirement for a child with nephrosis. The focus in nephrosis is primarily on protein and salt intake rather than fat content.
Choice C rationale:
Salt restriction is the correct requirement for a child with nephrosis. Nephrosis often leads to fluid retention and edema due to impaired kidney function. Restricting salt intake helps to reduce fluid retention and manage blood pressure.
Choice D rationale:
A high carbohydrate diet is not commonly prescribed for a child with nephrosis. While carbohydrates are a source of energy, they are not a primary consideration in managing nephrosis. The emphasis is more on protein and salt intake.
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