I cannot say for medication, but diagnosis is on patterns, therapy response over time, and use of spirometry.
Well your Diagnosis  depends on  the pattern of symptoms, response to therapy over time, and spirometry
Hello! I heard you knew a lot about asthma. I have asthma and I'd like to know more about it. I see. Asthma is when the lung's airways are inflamed. It is a long-term disease. Yeah it's not great. What else can you tell me? Do you have symptoms like reversible airflow obstruction, and bronchospasm. Yes. It's really bad if I exercise too hard or am around cats and dust. Symptoms for it could be things like wheezing or coughing, having chest tightness or shortness of breath. That's right! That's when I have to use my medicine. What do you know about medication for asthma?
Diagnosis is usually based on the pattern of symptoms, response to therapy over time, and spirometry.