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

Answer and Explanation

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.

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Correct Answer is ["B","C","D"]

Explanation

A) Cleanse the mask or collar with soapy water every other day. The mask or collar should be cleansed at least once daily to prevent bacterial growth and maintain hygiene.
B) Post "no smoking" warning signs at home in a prominent location. This is essential to reduce the risk of fire hazards associated with oxygen therapy.
C) Make sure the straps on the mask are secure but not too tight. Properly adjusted straps ensure a secure fit without causing skin breakdown or discomfort.
D) Check the tops of his ears regularly for skin breakdown. Prolonged use of oxygen masks can cause pressure injuries on the ears, making regular checks necessary.
E) Apply petroleum jelly around and inside the nares. Petroleum-based products are flammable and should be avoided. Water-based moisturizers are safer alternatives.

A. incomplete expirations. B. decreased oxygen saturation C. impaired cilia D. increased elasticity in thorax and respiratory tissues

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.

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The nurse clarifies that the cough mechanism is stimulated when:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A provider is discharging a client with a prescription for home oxygen therapy. The nurse should reinforce which of the following instructions with the client and his family? (Select all that apply.)

Correct Answer is ["B","C","D"]

Explanation

The nurse is aware that changes occur in the respiratory system after the age of 70 that put the older adult more at risk for respiratory problems. These changes include: (Select all that apply.)

Correct Answer is ["A"]

Explanation

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