A patient with a history of asthma presents to the ED in sev…
A patient with a history of asthma presents to the ED in severe respiratory distress with increased accessory muscle use. Vital signs are: HR 110/min, RR 32/min, and SpO2 of 88% on room air. Bilateral expiratory wheezes are heard on auscultation. The respiratory therapist should recommend initiating: