In either event, turn the rate dial counterclockwise until the sensitivity is low enough for the patient to trigger inhalation, or the RespirTech PRO will go into the pressure control mode. Timeter and other flowmeters using a floating ball as an indication of flow are capable of being adjusted to flows above what is indicated. You can use any breathing gas from the hospital wall outlet or gas cylinder. It depends on the flowrate. Tidal volume may be determined by using the tidal volume chart included with the instructions.
Tidal volume is the inspiratory time multiplied by the flow rate.
Peak pressure indications on the pressure dial are approximate only. It is good clinical practice to use a manometer. Peak pressure ranges between 20 and 50 cm H2O, and PEEP ranges between 2 and 5 cm H2O respectively. There should not exist any circumstances which would cause the pop-off valve to activate. Deposit of medicine residue may cause the RespirTech PRO to stick if let dry for an extended period of time.