Based on your knowledge and your research please explain the factors that might be the etiology of D.R. being an asthmatic patient.

Respiratory Function Analysis D.R. is a 27-year-old man, who presents to the nurse practitioner at the Family Care Clinic complaining of increasing SOB, wheezing, fatigue, cough, stuffy nose, watery eyes, and postnasal drainage—all of which began four days ago. Three…