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 C
Explanation
A. Parkinson's disease
Edrophonium is not used for the diagnosis of Parkinson's disease. Parkinson's disease is a neurodegenerative disorder characterized by motor symptoms such as tremors, rigidity, and bradykinesia. The diagnosis is typically based on clinical symptoms and neurological examination.
B. Alzheimer's disease
Edrophonium is not used for the diagnosis of Alzheimer's disease. Alzheimer's disease is a progressive neurodegenerative disorder affecting cognition. The diagnosis involves clinical evaluation, cognitive assessments, and sometimes imaging studies, but not the use of edrophonium.
C. Myasthenia Gravis
This is the correct choice. Edrophonium is used as a diagnostic tool in Myasthenia Gravis. In individuals with Myasthenia Gravis, the administration of edrophonium can lead to a temporary improvement in muscle strength, helping to confirm the diagnosis.
D. Serotonin Syndrome
Edrophonium is not used for the diagnosis of serotonin syndrome. Serotonin syndrome is a condition caused by an excess of serotonin, often due to the use of certain medications. Diagnosis is based on clinical symptoms and a history of serotonin-affecting medications, not the administration of edrophonium.
Correct Answer is B
Explanation
A. Butorphanol
Butorphanol is a mixed opioid agonist-antagonist. It has both agonist and antagonist properties at opioid receptors. While it can be used for pain management, it is not commonly used for opioid overdose reversal.
B. Naloxone
Naloxone is an opioid receptor antagonist and is the drug of choice for reversing opioid overdose, including morphine overdose. It works by competitively binding to opioid receptors, blocking the effects of opioids.
C. Flumazenil
Flumazenil is a selective antagonist for benzodiazepines. It is used to reverse the effects of benzodiazepine overdose but does not have an effect on opioid overdose.
D. Pentazocine
Pentazocine is a mixed opioid agonist-antagonist. Like butorphanol, it has both agonist and antagonist properties at opioid receptors. It is used for pain management but is not commonly used for opioid overdose reversal.
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