PFT exam

A 20-year-old patient is undergoing routine pulmonary function testing to review her chronic condition. These tests are compared to a standardised predicted value and given in the table below:

FEV1 70% of predicted

FVC 65% of predicted

FEV1/FVC 108%

What condition is this patient likely to suffer from that explains the above results?

• Neuromuscular disorders

• Asthma

• COPD

• Pneumonia

A patient with a body mass index (BMI) of 40kg/m² presents to the GP describing apnoeic episodes during sleep. He is referred to the hospital's respiratory team where he receives an initial spirometry test which is shown below.

What type of lung disease pattern is shown?

• Obstructive

• Extrapulmonary

• Intrapulmonary

• Normal

A 35-year-old male with a history of asthma presents for pulmonary function testing. Spirometry shows the following:

• FVC: 85% of predicted

• FEV1: 65% of predicted

• FEV1/FVC ratio: 69%

What is the most likely interpretation of these findings?

• 
  Poor patient effort

• Combined pattern

• Obstructive pattern

• Restrictive pattern

In which scenario would a bronchodilator reversibility test be most helpful?

• Identifying a pneumothorax

• Assessing lung function in pulmonary fibrosis

• Differentiating between asthma and chronic obstructive pulmonary disease (COPD)

• Diagnosing restrictive lung disease

A 50-year-old woman presents with shortness of breath and has the following pulmonary function test results:

• FVC: 60% of predicted

• FEV1: 58% of predicted

• FEV1/FVC ratio: 95%

What is the most likely diagnosis?

• Normal lung function

• Combined obstructive and restrictive lung disease

• Pulmonary embolism

• Restrictive lung disease

Which of the following findings is most indicative of a restrictive lung disease pattern on spirometry?

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• FEV1/FVC ratio < 70%

• FVC < 80% of predicted and normal FEV1/FVC ratio

• Significant improvement in FEV1 after bronchodilator

• Decreased Residual Volume (RV)

A patient with a known history of pulmonary fibrosis presents for follow-up. Spirometry results are as follows:

• FVC: 48% of predicted

• FEV1: 45% of predicted

• FEV1/FVC ratio: 95%

Which of the following findings would most support this diagnosis?

• Significant bronchodilator response

• Decreased Tidal Volume (TV)

• Decreased Diffusing Capacity for Carbon Monoxide (DLCO)

• Increased Inspiratory Reserve Volume (IRV)

• What pattern is suggested by the following flow-volume loop?

• Fixed upper airway obstruction

• Obstructive

• Restrictive

• Variable intrathoracic obstruction