Up all night

Up all night with Avery. Her pulsox was alarming. She was desating into the 80's. This is caused from lack of oxygen. So I  suctioned her to make sure her trach was cleared, this didn't help. I changed her trach in case she had a plug, but that didn't help. After 3 hours of hearing the alarm go off every 5-10 minutes, I called the doctor. They said if it continued to call in the morning. So I am now on my way to the hospital. I have a feeling she has a respiratory infection. I'm hoping she doesn't but if she does I pray it can be treated at home and not in the hospital.