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.)
incomplete expirations.
decreased oxygen saturation
impaired cilia
increased elasticity in thorax and respiratory tissues
Correct Answer : A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Taping all connections within the system. Taping all connections helps prevent air leaks, which can compromise the function of the chest drainage system.
B) Turning on suction to 35 cm. Suction levels are typically set between 10 to 20 cm of water pressure. 35 cm is excessive and may cause lung tissue damage.
C) Keeping the system at the level of the patient's chest. The drainage system should always be kept below the level of the chest to promote gravity drainage and prevent backflow.
D) Looping the tubing between the mattress and the bed rail to minimize length. Tubing should not be looped or kinked, as this can obstruct drainage and compromise system function.
Correct Answer is D
Explanation
A) Secure the tracheostomy ties so that fingers cannot fit between the ties and the neck. The ties should be secure but loose enough to fit one finger between the ties and the neck to prevent skin breakdown and maintain comfort.
B) Suction for 20 seconds. Suctioning for 20 seconds is too long and may cause hypoxia. Suction should not exceed 5 to 10 seconds.
C) Clean secretions from the tube using hydrogen peroxide. Hydrogen peroxide can irritate the delicate tissues and is not recommended. Saline or prescribed cleaning agents are preferred.
D) Set the vacuum pressure at 120 mmHg for suctioning. For a toddler, suction pressure should typically be between 80 and 120 mmHg to prevent mucosal damage.
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