A patient with a gastric ulcer is ordered sucralfate (Carafate). How does this medication works?
calm the patient to reduce acid production
block the H2 receptors
neutralize the gastric acids
coat the gastric lining
The Correct Answer is D
A. Calm the patient to reduce acid production.
This description is not accurate for sucralfate. Calming the patient to reduce acid production is typically associated with medications like proton pump inhibitors (PPIs) or H2 receptor blockers.
B. Block the H2 receptors.
Blocking H2 receptors is the mechanism of action for H2 receptor blockers, such as ranitidine. It is not the mechanism of action for sucralfate.
C. Neutralize the gastric acids.
Neutralizing gastric acids is the mechanism of action for antacids, such as aluminum hydroxide or calcium carbonate. Sucralfate works differently; it forms a protective coating on the gastric lining rather than directly neutralizing acids.
D. Coat the gastric lining.
This is the correct mechanism of action for sucralfate. It forms a protective coating on the gastric lining, adhering to the ulcer site and providing a barrier against gastric acid.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Misoprostol (Cytotec)
The patient complaining of gastric distress from NSAIDs (Nonsteroidal Anti-Inflammatory Drugs) like aspirin or indomethacin may benefit from the administration of misoprostol (Cytotec). Misoprostol is a prostaglandin analog that helps protect the stomach lining and reduce the risk of NSAID-induced gastric ulcers.
B. Lansoprazole (Prevacid)
Lansoprazole is a proton pump inhibitor (PPI) that reduces stomach acid production. While PPIs can be used for certain acid-related conditions, they do not directly protect against NSAID-induced gastric distress.
C. Magaldrate (Riopan)
Magaldrate is an antacid that neutralizes stomach acid. It may provide relief from symptoms of indigestion but does not specifically address the gastric distress caused by NSAIDs.
D. Magnesium trisilicate (Gaviscon)
Magnesium trisilicate is an antacid that helps neutralize stomach acid. Like magaldrate, it may alleviate symptoms of indigestion but does not target the underlying issue of NSAID-induced gastric distress.
Correct Answer is C
Explanation
A. "I need to increase my fluid intake." - This is a correct statement. Sucralfate should be taken with plenty of water to ensure proper absorption and effectiveness.
B. "I need to report pain or vomiting of blood." - This is also a correct statement. Severe abdominal pain or vomiting of blood may indicate a serious issue and should be reported to the healthcare provider.
C. "I need to take Carafate 30 minutes after meals." - This is an incorrect statement. Sucralfate is typically taken on an empty stomach, about 1 hour before meals and at bedtime.
D. "I need to take Maalox 30 minutes before or after Carafate." - This statement is correct. Antacids like Maalox can interfere with the absorption of sucralfate. It's generally recommended to space them apart, taking sucralfate at least 30 minutes before or after antacids.
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