George, a 15-year-old man, is brought to the ESL with multiple rib fractures following a motor vehicle accident. How could this injury affect his respiratory system?
It will enhance the diffusion of gases
It will increase the diaphragmatic workload
It will compromise the efficiency of ventilation
It will improve pulmonary blood supply
The Correct Answer is C
A. Multiple rib fractures are unlikely to enhance gas diffusion; instead, they can impair ventilation by reducing the ability of the chest wall to expand.
B. Multiple rib fractures can indeed increase the workload of the diaphragm as it tries to compensate for the decreased ability of the chest wall to expand during breathing.
C. Multiple rib fractures can restrict chest wall movement, leading to compromised ventilation efficiency.
D. Multiple rib fractures wouldn't directly improve pulmonary blood supply; they can lead to pain and impaired lung function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Immunofixation electrophoresis is not primarily used to assess kidney function.
B. Immunofixation electrophoresis is not used to assess lung function.
C. Immunofixation electrophoresis is a laboratory technique used to identify and characterize abnormal proteins in the blood, which is essential in diagnosing conditions like Waldenstrom's macroglobulinemia.
D. Immunofixation electrophoresis is not used to quantify white blood cells (WBCs).
Correct Answer is C
Explanation
A. Alveolar macrophages are involved in immune defense within the lungs but are not directly responsible for bronchospasm.
B. This system helps remove mucus and trapped particles from the airways but does not directly cause bronchospasm.
C. Exposure to cold air can trigger reflex bronchoconstriction as a protective mechanism to prevent the entry of cold air into the lungs.
D. Filtration of air occurs primarily in the upper airways and does not directly relate to bronchospasm triggered by cold air inhalation.
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