Lungfunction tests, breathing test, bodypletysmography, spirometry, diffusion-capacity
From this tests, in which the patient carries out breathing manoeuvres on the instruction of the nurse in a special device, conclusions can be drawn by the physician regarding the condition of the airways (trachea and bronchi) and the alveoli.
Diseases like Asthma, chronic obstructive bronchitis (COPD), emphysema, damage caused by smoking etc. can be diagnosed in this way. In doubtful cases a bronchial provocation test can be necessary.
The effect of inhaled drugs on the airways can be controlled immediately in parts of the cases.