The nurse clarifies that the cough mechanism is stimulated when:
more than 250 mL of air moves in and out of the lungs with each breath
foreign substances are propelled by the cilia toward the respiratory tract
dehumidified air enters the upper airway passages
the blood transports carbon dioxide to the lungs
The Correct Answer is B
A. More than 250 mL of air moves in and out of the lungs with each breath: This describes tidal volume but does not directly stimulate the cough mechanism.
B. Foreign substances are propelled by the cilia toward the respiratory tract: Irritation by foreign particles stimulates the cough reflex to clear the airways.
C. Dehumidified air enters the upper airway passages: Dry air can cause airway irritation but does not consistently trigger a cough reflex.
D. The blood transports carbon dioxide to the lungs: This describes gas exchange, which does not directly relate to triggering the cough mechanism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A"]
Explanation
A. Incomplete expirations: Age-related decreased lung elasticity impairs full expiration, trapping air in the lungs.
B. Decreased oxygen saturation: Age-related changes in lung tissue reduce gas exchange efficiency.
C. Impaired cilia: Decreased ciliary function reduces the ability to clear mucus and pathogens from the airway.
D. Increased elasticity in thorax and respiratory tissues: Elasticity decreases with aging, reducing lung compliance.
Correct Answer is B
Explanation
A) In the morning immediately after breakfast. Performing postural drainage after eating may induce nausea and vomiting.
B) Shortly after the patient arises in the morning, before breakfast. This timing allows mucus to drain more effectively since the patient has been lying down overnight, and an empty stomach minimizes the risk of vomiting.
C) 30 minutes after lunch. Postural drainage should be performed at least 1 to 2 hours after meals to prevent gastrointestinal discomfort.
D) 1 hour after supper. While this timing is better than immediately after eating, morning sessions are generally more effective.
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.