A nurse is caring for a client who has respiratory failure due to ventilation-perfusion (V/Q) mismatch. The nurse should recognize that the client most likely has which of the following conditions?
Flail chest
Emphysema
Congestive heart failure
Guillain-Barré syndrome
None
None
The Correct Answer is B
Choice A Reason:
Flail chest is incorrect. Flail chest is a condition characterized by multiple rib fractures, causing instability in the chest wall. While it can lead to respiratory distress, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. Instead, it impairs the mechanics of breathing by compromising chest wall integrity.
Choice B Reason:
Emphysema is a chronic obstructive pulmonary disease (COPD) where the alveolar walls are destroyed, leading to a loss of surface area for gas exchange. This results in areas of the lungs that are well-perfused but poorly ventilated, causing a V/Q mismatch. The damage to alveoli leads to impaired ventilation, while blood flow may still be adequate, leading to hypoxemia (low oxygen levels in the blood).
Choice C Reason:
CHF primarily affects the heart’s ability to pump blood effectively, leading to pulmonary congestion and impaired gas exchange. However, it typically causes diffusion defects rather than a direct ventilation-perfusion mismatch. V/Q mismatch may occur secondary to pulmonary edema, but it’s not the primary mechanism of respiratory failure in CHF.
Choice D Reason:
Guillain-Barré syndrome is incorrect. Guillain-Barré syndrome (GBS) is a neurological disorder that affects the peripheral nervous system, leading to muscle weakness and paralysis. While respiratory muscle weakness can occur in GBS, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. GBS primarily affects nerve function rather than lung function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A.Osmotic edema refers to fluid shifts due to changes in osmotic gradients (as seen in conditions like hyponatremia), not the inflammatory process of meningitis.
B.While inflammation is a key part of the body's response in meningitis, the edema is not a result of generalized whole-body inflammation. The edema is more directly linked to local inflammatory reactions in the brain triggered by the pathogen’s by-products.
C.Bacterial cell walls, endotoxins, and other components released by the bacteria directly stimulate inflammation, causing the breakdown of the BBB and allowing fluid and inflammatory cells to leak into the brain tissue.
D.This description is more aligned with the pathophysiology of conditions like hydrocephalus rather than meningitis. In meningitis, cerebral edema is primarily due to the inflammatory response, not abnormal CSF flow.
Correct Answer is B
Explanation
Choice A Reason:
Nutritional therapy is not appropriate. While nutritional therapy may be involved in assessing the client's overall nutritional status and dietary needs, it may not specifically address the swallowing difficulty associated with Parkinson's disease.
Choice B Reason:
Speech therapy is appropriate. Speech therapy, also known as speech-language pathology, plays a crucial role in assessing and managing dysphagia. Speech therapists can evaluate the client's swallowing function and provide interventions to improve swallowing safety and efficiency.
Choice C Reason:
Occupational therapy is incorrect. Occupational therapy focuses on helping individuals engage in meaningful activities of daily living. While occupational therapists may play a role in dysphagia management, speech therapy is typically the primary discipline involved in addressing swallowing difficulties.
Choice D Reason:
Respiratory therapy: Respiratory therapy primarily focuses on evaluating and managing respiratory conditions, such as asthma, chronic obstructive pulmonary disease (COPD), and ventilator support. While dysphagia can sometimes lead to aspiration pneumonia and respiratory complications, respiratory therapists are not typically involved in the assessment and management of dysphagia itself.
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