The client has emphysema, which causes the alveoli to collapse making the O2 and CO2 gas exchange difficult, making the patient breathe more frequently than normal. This is caused by which of the following?
Decreased K+ levels
Increased 02 levels
Decreased CO2 levels
Increased CO2 levels
The Correct Answer is D
A. Decreased K⁺ levels: Not related to respiratory drive.
B. Increased O₂ levels: May actually suppress the drive to breathe in COPD patients.
C. Decreased CO₂ levels: Would reduce respiratory drive, not increase it.
D. Increased CO₂ levels: Correct; high CO₂ levels stimulate the respiratory center to increase breathing rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Pharynx: Transports air but is not primarily responsible for warming/moistening.
B. Larynx: Functions in voice production and airway protection.
C. Nostrils/nares: Correct; nasal passages warm, moisten, and filter the air.
D. Alveoli: Site of gas exchange, not air conditioning.
Correct Answer is B
Explanation
A. Decrease oxygenation due to decrease in muscle function- kyphosis primarily affects skeletal structure, not muscles.
B. Decrease oxygenation due to inability to change thoracic pressure adequately- kyphosis alters thoracic cage shape, restricting expansion and limiting pressure changes required for ventilation.
C. Decrease oxygenation due to loss of elasticity of lung tissue- this relates more to normal aging or emphysema, not kyphosis.
D. Decrease in oxygenation due to decrease nervous system response- kyphosis doesn’t affect the nervous system directly.
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