Too young for asthma?

Emily

So pretty sure my baby girl has asthma. We were in urgent care last night because she was really struggling to breathe. Her O2 levels were in the low 80s and her respiratory rate at one point was 73. Her breathing really takes a hit every time she gets anything viral. Is she too young to be diagnosed with asthma? Even if she is, what will be done? Will she have breathing treatments daily? Medicine? This is new to us. Just wondering what we should do next to prevent what happened yesterday. Poor baby was really struggling.