A nurse is explaining the pathophysiology of asthma to a client. What role do mast cells play in the pathophysiology of asthma?
"Mast cells release hormones that relax the airway muscles in asthma."
"Mast cells trigger inflammation and bronchoconstriction in response to allergens."
"Mast cells help to clear excess mucus from the airways in asthma."
"Mast cells produce antibodies that protect against asthma attacks."
The Correct Answer is B
A) Incorrect. Mast cells do not release hormones that relax airway muscles; they are involved in inflammation.
B) Correct. Mast cells release inflammatory substances in response to allergens, leading to bronchoconstriction and inflammation in asthma.
C) Incorrect. Mast cells are not primarily involved in clearing excess mucus from the airways.
D) Incorrect. Mast cells do not produce antibodies to protect against asthma attacks.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Incorrect. Asthma is not contagious, and it is not caused by bacteria.
B) Correct. Asthma is a chronic respiratory condition characterized by inflammation and narrowing of the airways.
C) Incorrect. Asthma is not a skin disorder and does not involve itchy rashes.
D) Incorrect. Asthma is not an autoimmune disorder and does not primarily affect the joints.
Correct Answer is C
Explanation
A) Incorrect. Spacers can be beneficial for both children and adults, depending on their ability to use the inhaler effectively.
B) Incorrect. A spacer does not deliver medication directly into the bloodstream but optimizes delivery to the lungs.
C) Correct. Using a spacer reduces the risk of side effects, such as oral thrush, associated with some inhaled medications by ensuring more targeted delivery to the lungs.
D) Incorrect. Spacers are designed to make inhalers easier to use correctly, not more challenging.
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