Pulmonary Function Tests Flashcards
What are pulmonary function tests also known as?
Spirometry
Lung function tests
What does Spirometry tell us?
Static lung volumes
Dynamic lung volumes
What is static lung volume?
How much air the lung can hold
What is dynamic lung flow?
The flow of air through the airways
How fast the volume of air can be moved
What are the diagnostic indications for its use?
Evaluated symptoms, signs or previous abnormal results
Measures effect of disease on pulmonary function
Assesses preoperative risk
Screen at risk groups
What are the indications for monitoring?
Assess the therapeutic intervention on lung function
Monitor adverse reactions to drugs
Assess potential environmental or occupational exposures
What are the indications for disability?
Assess impairment or disability from lung disease
Assess risks as part of insurance evaluation
Assess prognosis
What are the contraindications for pulmonary function tests?
Pneumothorax Haemoptysis Aneurysm Unstable angina Recent myocardial CVS instability Cerebral instability Recent surgery
What is measured in pulmonary function tests?
Forced vital capacity (FVC)
Forced expiratory volume in 1 second (FEV1)
What is the Spirometry procedure?
After a relaxed breath out, take a maximal breath in
Seal lips around the mouth pier and blow out as fast and completely as possible
Do 3 attempts
What are the characteristics of obstructive results?
Limitation of airflow due to partial or complete obstruction
What are examples of obstructive results?
Emphysema
Chronic bronchitis
Bronchiectasis
Asthma
What are the characteristics of restrictive results?
Reduced expansion of lung parenchyma accompanied by decreased total lung capacity
What are some examples of restrictive results?
Interstitial lung disease
Idiopathic pulmonary fibrosis
Pneumoconiosis
Chest wall neuromuscular disease
