Lung Function Assessment Concepts

This video tutorial provides an interpretation scheme for pulmonary function testing, focusing on spirometry and body plethysmography. It explains how to diagnose lung disorders by assessing the FEV1:FVC ratio, vital capacity, and total lung capacity. The tutorial covers the identification of obstruction, restriction, hyperinflation, and mixed ventilatory defects, emphasizing the importance of these parameters in diagnosing various pulmonary conditions.

Which pathologies were introduced in the initial episodes?

• Pneumonia, tuberculosis, and lung cancer

• Obstruction, hyperinflation, restriction, and mixed ventilatory defects

• Asthma, bronchitis, and emphysema

• COPD, asthma, and bronchitis

What is the first parameter to assess in the interpretation scheme?

• Residual volume

• Vital capacity

• Total lung capacity

• FEV1:FVC ratio

What does a decreased FEV1:FVC ratio indicate?

• Normal lung function

• Hyperinflation

• Restriction

• Obstruction

If the vital capacity is within the normal range, what is the diagnosis?

• Restriction

• Obstruction

• Hyperinflation

• Mixed ventilatory defect

What should be assessed if the vital capacity is reduced?

• Tidal volume

• Total lung capacity

• Residual volume

• FEV1:FVC ratio

What does a reduced vital capacity and normal total lung capacity indicate?

• Obstruction

• Restriction

• Hyperinflation

• Mixed ventilatory defect

What is the term for lung obstruction alongside hyperinflation?

• Air trapping

• Mixed ventilatory defect

• Restriction

• Normal lung function

What are the three possible causes of a reduced FEV1:FVC ratio?

• Mixed ventilatory defect, air trapping, and normal lung function

• Obstruction, mixed ventilatory defect, and hyperinflation

• Restriction, hyperinflation, and air trapping

• Obstruction, restriction, and air trapping

What is the diagnosis if the FEV1:FVC ratio is normal and the vital capacity is decreased?

• Mixed ventilatory defect

• Restriction

• Obstruction

• Hyperinflation

What should follow spirometry if a decreased vital capacity is measured?

• Chest X-ray

• CT scan

• Body plethysmography

• MRI