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Clinical Research on Dyspnea
Author Bios
What is Dyspnea?
What Provokes Dyspnea?
Currently selected section: The Nature of Dyspnea
Language of Dyspnea
Clinical Application
Research Application
Variability in Sensations
Challenges in Study
Mechanical Loads and Sense of Effort
Chemoreceptors
Mechanoreceptors
Neuro-Mechanical Dissociation
Phase of Respiration and Dyspnea
Physiology of Dyspnea
Respiratory System
Cardiovascular System
Measuring Dyspnea
Scaling Issues
Qualitative Aspects
Reliability and Validity Overview
Reliability and Validity
Sensitivity and Specificity
Scales
Sensation vs. Perception vs. Symptom
Treating Dyspnea
Why Measure?
Cluster Analysis
Statistical vs. Clinical Significance
Standard Error of Measurement
Measuring Fatigue
Measuring Depression
Measuring Anxiety and Hyperventilation
Measuring Quality of Life
Conclusion

 

Chapter 23: Dyspnea: Measuring Dyspnea-Related  Fatigue
        

Dyspnea and leg effort are measured at maximal exercise in 97 patients with moderate to severe COPD and compared to 320 matched control subjects.

Question 30.1

Assuming that the patients' maximal exercise was determined by the development of intolerable symptoms and that breathing discomfort and the effort of moving one's legs were the most common complaints, in what percentage of the patients' with COPD did ratings of leg effort exceed dyspnea at the end of exercise?

Selection A 10%
Selection B 25%
Selection C40%
Selection D60%


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