Which of the following cells increase acid in the stomach? (Select all that apply)
Enterochromaffin cells
Beta cells
Parietal cells
Mucus cells
G cells
Correct Answer : A,C,E
Choice A reason: Enterochromaffin-like (ECL) cells release histamine, which stimulates parietal cells to secrete hydrochloric acid via H2 receptors. This increases gastric acid production, critical for digestion, and is a key component in the acid secretion pathway, making this a correct choice for acid-increasing cells.
Choice B reason: Beta cells, located in the pancreas, secrete insulin to regulate glucose, not gastric acid. They have no role in stomach acid production or regulation, which is controlled by gastric cells like parietal or G cells, making this choice incorrect.
Choice C reason: Parietal cells directly secrete hydrochloric acid into the stomach lumen via the H+/K+-ATPase pump, significantly increasing gastric acidity for digestion. Activated by histamine, gastrin, and acetylcholine, they are central to acid production, making this a correct choice for the question.
Choice D reason: Mucus cells secrete protective mucus to shield the stomach lining from acid and pepsin, not acid itself. They reduce damage from acidity but don’t contribute to its production, making this choice incorrect for cells that increase stomach acid.
Choice E reason: G cells secrete gastrin, a hormone that stimulates parietal cells to produce hydrochloric acid. Gastrin enhances acid secretion indirectly by activating parietal cells and ECL cells, playing a key role in gastric acid regulation, making this a correct choice.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Questioning why allergies aren’t aren’t in the chart is secondary and confrontational. Clarifying the specific allergy ensures safety, so this is incorrect for the first action.
Choice B reason: Identifying the specific antibiotic and reaction verifies the allergy, preventing anaphylaxis or harm. This is the priority safety step, making it the correct first action.
Choice C reason: Lowering the dose doesn’t address the allergy risk; allergic reactions can occur regardless. Verifying the allergy is critical first, so this is incorrect.
Choice D reason: An antihistamine may mitigate mild reactions but doesn’t confirm the allergy. Clarifying the allergy prevents unsafe administration, so this is incorrect for the first step.
Correct Answer is D
Explanation
Choice A reason: Nighttime awakenings more than twice weekly indicate step 2, requiring maintenance therapy. Step 1 uses albuterol as needed, so this is incorrect.
Choice B reason: Twice-daily glucocorticoids are for step 2 or higher, not step 1, where albuterol is used as needed. This is incorrect for step 1 management.
Choice C reason: LABAs are used in step 3 or higher, not step 1, where albuterol alone is sufficient as needed. This is incorrect for the asthma step.
Choice D reason: At step 1, albuterol is used as a rescue inhaler for acute asthma symptoms. This is the standard approach, making it the correct choice.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.