Basic Terminology Flashcards
Tidal volume
volume of gas entering or leaving the patient during the inspiratory or expiratory phase time
Minute Volume
sum of the tidal volume in one minute
ventilatory frequency
number of resp cycles per minute
inspiratory flow time
the period b/t the begining and end of inspiratory flow
inspiratory pause time
period from the end of inspiratory flow to the start of the exp flow
inspiratory phase time
period of time b/t the start of insp flow and the begining of exp flow
-the sum of insp flow time and insp pause time
expiratory flow time
time b/t the begining and end of exp flow
expiratory pause time
interval from the end of exp flow to the start of insp flow
expiratory phase time
time b/t the start of exp flow and the start of insp flow
-the sum of the exp flow time and the exp pause time
inspiratory and expiratory phase time ratio/ I:E ratio
the ratio of insp phase time to exp phase time
inspiratory flow rate
volume of gas per unit time that passes from the patient connection of the breathing system to the patient
expiratory flow rate
volume of gas per unit time returned from the patient during the exp phase
resistance
pressure difference per unit flow across the airway
-usually increases as flow increases
compliance
ratio of a change in volume to a change in pressure
