The therapist is preparing to mechanically ventilate a patient with the Hamilton Galileo using the adaptive support ventilation mode (ASV). Which of the following settings must the therapist establish before connecting the patient to this ventilator? I. PEEP II. tidal volume III. rise time IV. high-pressure alarm
A. II only
B. II, IV only
C. I, III, IV only
D, II, III, IV only
?ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: The ventilator is designed to establish the appropriate minute ventilation after the prescribed settings are initially adjusted, and once the patient is connected to the ventilator. Tidal volume is not one of the initial settings.
C. Correct response: The following settings need to be established before beginning mechanically ventilating a patient in the ASV mode: (1) high-pressure alarm; (2) PEEP level; and (3) Fio2. After the patient is connected to the Hamilton Galileo, the ventilator delivers a series of test breaths to obtain data to calculate (1) system compliance, (2) airway resistance, and (3) auto-PEEP. PEEP is one of the settings that therapists must establish before connecting a patient to the Hamilton Galileo when using ASV.
D. Correct response: See explanation C.
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