The equipment is adjusted so that the patient can sit comfortably in the chamber and reach the mouthpiece without
having to flex or extend the neck.
The patient must be seated comfortably, there is no need to remove dentures. The procedure is explained in detail,
including that the door will be closed, the patient’s cheeks are to be supported by both hands, and a nose clip is to be
used.
Let the patient enter into the Body Box, paying attention to avoid bumping the head while entering (if necessary, he/she
can use the proper handle).
Explain the procedure in detail, including that the door will be closed, the patient’s cheeks are to be supported by both
hands, and a nose clip is to be used.
The patient is instructed to insert the mouthpiece in their mouth and breathe quietly until a stable end-expiratory level is
achieved (usually 3–10 tidal breaths).