ATI RN
Herzing University NSG150 Questions
Question 1 of 1
What mechanism explains Omeprazole’s effect on gastric acidity?
Correct Answer: A
Rationale: Omeprazole, a proton pump inhibitor (PPI), acts by irreversibly blocking the Hâº/Kâº-ATPase enzyme system located in the gastric parietal cell membrane, the final pathway for acid secretion. This results in profound and long-lasting suppression of gastric acid production. The measured rise in gastric pH from acidic to near-neutral (pH 6.5) reflects this inhibition. Unlike Hâ‚‚ blockers such as ranitidine, PPIs provide prolonged acid control and promote ulcer healing, making them the first-line treatment for GERD and peptic ulcer disease.
Question 2 of 1
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Question 3 of 1
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Question 4 of 1
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Question 5 of 1
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