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Questions and Answers
Which of the following is a function of pleural fluid?
Which of the following conditions can lead to pleural effusion?
What is the role of the parietal pleura in the production and absorption of pleural fluid?
Which of the following diseases is NOT a potential cause of pleural effusion?
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What is the main effect of pleural effusion on lung function?
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Which of the following is NOT a potential cause of pleural effusion?
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What is the function of pleural fluid?
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What is the role of the parietal pleura in the production and absorption of pleural fluid?
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What is the main effect of pleural effusion on lung function?
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Which of the following conditions can lead to pleural effusion?
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Study Notes
Functions of Pleural Fluid
- Acts as a lubricant, reducing friction between the pleurae during respiratory movements.
- Provides surface tension, aiding in the expansion of the lungs during inhalation.
- Helps maintain negative pressure in the pleural cavity, promoting lung inflation.
Conditions Leading to Pleural Effusion
- Congestive heart failure, leading to increased hydrostatic pressure.
- Pneumonia, causing inflammation and increased permeability of pleural membranes.
- Malignancies, which can cause obstruction and fluid accumulation.
- Cirrhosis and nephrotic syndrome, contributing to decreased oncotic pressure in the blood.
Role of Parietal Pleura
- Produces pleural fluid which helps in lubrication and pressure maintenance.
- Absorbs excess pleural fluid, regulating fluid balance within the pleural cavity.
- Participates in inflammatory responses, influencing fluid production during disease states.
Diseases NOT Associated with Pleural Effusion
- Chronic asthma is generally not a direct cause of pleural effusion.
- Conditions like COPD or bronchitis may aggravate respiratory issues but do not often lead directly to pleural effusion.
Main Effects of Pleural Effusion on Lung Function
- Reduces lung capacity and compliance, leading to difficulty in breathing.
- Can cause dyspnea (shortness of breath) by preventing full lung expansion.
- Potentially compromises gas exchange due to limited lung surface area.
Recap on Causes of Pleural Effusion
- Infection, malignancy, or heart failure are common causes, while chronic asthma is not typically associated.
- Understanding underlying conditions is crucial for identifying the cause of pleural effusion and planning treatment.
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Description
Test your knowledge on pleural effusion and pneumothorax in critical care nursing. Learn about the pathophysiology, causes, and implications of these conditions.
