A client with a history of peptic ulcer disease has responded well to treatment with a histamine-2 antagonist. What effect will this nurse explain to the client this drug has?
destroys Helicobacter pylori
coats and protects the stomach lining
increases the pH of secreted hydrochloric acid
reduces the quantity of hydrochloric acid secreted
The Correct Answer is D
A. destroys Helicobacter pylori: Histamine-2 antagonists do not have antibacterial properties and therefore do not eradicate H. pylori. Treating H. pylori requires a combination of antibiotics and acid-suppressing medications in a triple or quadruple therapy regimen.
B. coats and protects the stomach lining: This is the function of gastrointestinal protectants like sucralfate, which form a physical barrier over ulcerated tissue. Histamine-2 antagonists do not create a protective coating but rather work by modulating acid secretion.
C. increases the pH of secreted hydrochloric acid: Histamine-2 antagonists do not change the pH of already secreted acid. Instead, they prevent acid production at the source, thereby reducing the total volume and acidity of gastric secretions over time.
D. reduces the quantity of hydrochloric acid secreted: Histamine-2 antagonists block H2 receptors on gastric parietal cells, which decreases the stimulation of acid production. This leads to a lower volume of hydrochloric acid in the stomach, allowing ulcers to heal more effectively.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. being sick increases the need for insulin: Illness can elevate blood glucose levels and increase insulin requirements, but this is a temporary condition. It does not explain the fundamental need for insulin in clients with Type 1 Diabetes.
B. people with Type 1 Diabetes produce no insulin at all: Type 1 Diabetes is characterized by autoimmune destruction of pancreatic beta cells, leading to absolute insulin deficiency. These clients are entirely dependent on exogenous insulin to regulate blood glucose and sustain life.
C. healthcare providers can manage diabetes better with insulin when the client is in the hospital: While insulin is often used during hospitalizations for tight glucose control, this does not explain why all Type 1 diabetics require insulin therapy continuously, not just during hospital stays.
D. all people with diabetes need insulin: Not all individuals with diabetes require insulin. Many people with Type 2 Diabetes can manage their condition with oral medications, lifestyle changes, or non-insulin injectables.
Correct Answer is A
Explanation
A. chronic diabetic gastroparesis: Metoclopramide is commonly prescribed for gastroparesis, especially in diabetic clients. It enhances gastric emptying by increasing motility and decreasing nausea, making it particularly effective for treating delayed gastric emptying due to autonomic neuropathy.
B. impaction: Fecal impaction typically requires enemas or manual disimpaction rather than prokinetic agents. Metoclopramide acts on the upper gastrointestinal tract and has limited usefulness for resolving impaction in the colon.
C. encopresis: Encopresis, the repeated passing of stool in inappropriate places (often due to chronic constipation in children), is not treated with metoclopramide. Management usually involves stool softeners, behavior training, and addressing constipation.
D. clients requiring diagnostic procedures: Although some GI procedures may involve medications to enhance motility or reduce nausea, metoclopramide is not routinely administered for diagnostic preparation. Bowel cleansing agents or sedatives are more commonly used.
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