The nurse is teaching a COPD patient how to perform pursed lip breathing. Which statement below is correct about pursed lip breathing?
Pursed lip breathing prevents atelectasis.
Pucker the lips like you are whistling.
Breathe slowly through the mouth for 4 counts.
Breathe out fast through the mouth for 2 counts.
The Correct Answer is B
Choice A reason: Pursed lip breathing (PLB) prolongs exhalation to reduce air trapping in COPD but does not directly prevent atelectasis, which is alveolar collapse from shallow breathing or obstruction. PLB maintains positive airway pressure, improving gas exchange, but atelectasis prevention requires deep breathing exercises, making this statement incorrect for PLB’s primary function.
Choice B reason: Pucker the lips like whistling is the correct technique for pursed lip breathing, creating a small opening to slow exhalation. This increases airway pressure, preventing alveolar collapse in COPD and improving oxygen saturation. By prolonging exhalation, PLB reduces hyperinflation, enhancing respiratory efficiency, making this the accurate description of the technique.
Choice C reason: Breathing slowly through the mouth for 4 counts describes inhalation timing, not specific to pursed lip breathing’s exhalation focus. PLB involves nasal inhalation and slow exhalation through pursed lips to reduce air trapping in COPD. Incorrect inhalation instructions can disrupt the technique’s effectiveness in maintaining airway pressure and improving gas exchange.
Choice D reason: Breathing out fast through the mouth for 2 counts contradicts pursed lip breathing’s purpose of slow, controlled exhalation. Rapid exhalation in COPD exacerbates air trapping, worsening hyperinflation. PLB prolongs exhalation through pursed lips to maintain airway pressure, improving oxygenation and reducing respiratory distress, making this statement incorrect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: In SBAR (Situation, Background, Assessment, Recommendation), chest pain is part of the Situation (S), describing the current issue. Background (B) includes relevant medical history, like angina, which causes chest pain due to myocardial ischemia from reduced coronary blood flow. Chest pain is the presenting symptom, not historical context, making it incorrect for B.
Choice B reason: Pulse rate of 108 is part of the Assessment (A) in SBAR, reflecting current vital signs. Background (B) provides historical context, such as the patient’s angina diagnosis, which predisposes to myocardial ischemia. Tachycardia may result from pain or hypoxia but is a current finding, not historical data, making it incorrect for B.
Choice C reason: History of angina is the Background (B) in SBAR, providing relevant medical history. Angina, caused by coronary artery narrowing, reduces myocardial oxygen supply, leading to chest pain. This context informs the current episode of pain and tachycardia, guiding assessment and treatment, making it the correct data for the Background component.
Choice D reason: Oxygen is needed is part of the Recommendation (R) in SBAR, suggesting an intervention. Background (B) includes past medical history, like angina, which explains the patient’s predisposition to chest pain. Recommending oxygen addresses current hypoxia but is not historical data, making it inappropriate for the Background section of SBAR.
Correct Answer is A
Explanation
Choice A reason: Teaching calcium intake to prevent bone loss is primary prevention, aimed at reducing disease risk before it occurs. Calcium strengthens bone density, reducing osteoporosis risk by supporting osteoblast activity and mineralization. This proactive measure prevents bone loss in healthy individuals, addressing the physiological need for calcium to maintain skeletal integrity before pathology develops.
Choice B reason: Secondary prevention involves early detection of disease, like screening for osteoporosis via bone density scans. Teaching calcium intake aims to prevent bone loss before it occurs, not detect it. Calcium supports bone remodeling, but secondary prevention targets existing asymptomatic conditions, making this incorrect for a strategy focused on preventing initial bone loss.
Choice C reason: Tertiary prevention manages existing disease to prevent complications, like rehabilitation after an osteoporotic fracture. Teaching calcium intake prevents bone loss before disease onset, aligning with primary prevention. Calcium enhances bone strength, but tertiary prevention focuses on restoring function post-disease, not preventing initial bone density loss, making this incorrect.
Choice D reason: Residual prevention is not a recognized term in public health. Teaching calcium intake is primary prevention, as it promotes bone health to prevent osteoporosis. Calcium supports bone matrix formation, reducing fracture risk. Incorrect terms like residual prevention do not apply, as prevention levels are clearly defined as primary, secondary, or tertiary in medical practice.
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