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. Ephedra:
Ephedra is an herb that contains ephedrine, a stimulant known to cause symptoms such as severe headache, diaphoresis, and restlessness. Ephedrine has been associated with cardiovascular side effects, leading to its restriction or banning in many countries.
B. Feverfew:
Feverfew is an herb commonly used for migraine prevention. It is not typically associated with severe headache, diaphoresis, or restlessness. Instead, it is known for its potential benefits in reducing the frequency and severity of migraines.
C. Garlic:
Garlic is an herb often used for various health purposes, including cardiovascular health. It is not known to cause severe headache, diaphoresis, or restlessness.
D. St. John's Wort:
St. John's Wort is an herb commonly used for mood-related conditions, such as mild to moderate depression. It is not associated with the symptoms described, and its primary effects are related to mood regulation.
Correct Answer is ["2.5"]
Explanation
To calculate the amount of solution needed for each dose, we need to use the formula:
Amount of solution (mL) = Dose (mg) / Concentration (mg/mL)
Plugging in the given values, we get:
Amount of solution (mL) = 50 mg / 20 mg/mL
Simplifying, we get:
Amount of solution (mL) = 2.5 mL
Therefore, the nurse must administer 2.5 mL of the solution for each dose.
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