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
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 ["A","B","E"]
Explanation
Choice A Reason:
Encouraging the client to walk regularly is appropriate. Regular exercise, including walking, can help improve mobility, balance, and overall physical function in individuals with Parkinson's disease. It can also help alleviate symptoms such as stiffness and tremors.
Choice B Reason:
Providing the client with fresh fruits and vegetables is appropriate. A healthy diet rich in fresh fruits and vegetables provides essential nutrients, antioxidants, and fiber, which can support overall health and well-being. While diet alone does not directly treat Parkinson's disease, maintaining a nutritious diet is important for overall health.
Choice C Reason:
Restricting fluids to 800 mL/day is inappropriate. Fluid restriction is not typically indicated for individuals with Parkinson's disease unless they have a specific medical condition such as heart failure or kidney disease, which may require fluid restriction as part of their management plan. Restricting fluids excessively can lead to dehydration, which can worsen symptoms such as fatigue, confusion, and constipation, common in Parkinson's disease. Adequate hydration is important for overall health and well-being, including maintaining proper kidney function and preventing urinary tract infections, which individuals with Parkinson's disease may be susceptible to due to urinary retention issues.
Choice D Reason:
Minimizing exposure to outside activities is inappropriate. While it's important for individuals with Parkinson's disease to take precautions to avoid falls and injuries, completely restricting exposure to outside activities is not necessary or advisable. Physical activity, social engagement, and exposure to sunlight are beneficial for both physical and mental health. Encouraging individuals with Parkinson's disease to remain engaged in activities they enjoy, with appropriate safety measures in place, can help maintain their quality of life and overall well-being.
Choice E Reason:
Teaching the client how to use a walker is inappropriate. Assistive devices such as walkers can help individuals with Parkinson's disease maintain mobility and independence, especially if they experience gait disturbances or balance problems. Teaching the client how to use a walker safely and effectively can enhance their quality of life and reduce the risk of falls.
Correct Answer is B
Explanation
Choice A Reason:
Drooling is inappropriate. Drooling, also known as sialorrhea, is a common symptom in Parkinson's disease due to impaired swallowing and reduced control of the muscles involved in saliva production. Anticholinergic medications can exacerbate dry mouth, which may contribute to drooling. However, drooling is not typically a side effect that would be specifically associated with anticholinergic use.
Choice B Reason:
Anhidrosis is appropriate. Anhidrosis refers to the inability to sweat normally. Anticholinergic medications can inhibit sweating by blocking the action of acetylcholine on sweat glands, leading to decreased sweating and potentially causing hyperthermia. Anhidrosis is a potential side effect of anticholinergic agents and should be reported to the healthcare provider due to the risk of overheating.
Choice C Reason:
Tremors is inappropriate. Tremors are a common symptom of Parkinson's disease and are typically not caused by anticholinergic medications. In fact, anticholinergic agents are often prescribed to help reduce tremors in individuals with Parkinson's disease. Tremors would not be considered an adverse effect that the client should report in the context of anticholinergic therapy.
Choice D Reason:
Rigidity is inappropriate. Rigidity, or stiffness of the muscles, is a characteristic symptom of Parkinson's disease resulting from the loss of dopamine-producing neurons in the brain. While anticholinergic medications can help alleviate some symptoms of Parkinson's disease, they are not typically associated with rigidity. Rigidity would not be considered an adverse effect that the client should report in the context of anticholinergic therapy.
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