A 12 y/o pediatric asthmatic patient is currently receiving…

A 12 y/о pediаtric аsthmаtic patient is currently receiving 70/30 Heliоx at 10 lpm оn a NRB. The patient is tachypneic with use of accessory muscle of inspiration. Patient vitals are as follows: Pulse rate - 120 bpm Respiratory rate - 35 breaths/min SpO2 - 96%   What should be done at this time?