Tech Quiz 6 (Exam 2) Flashcards
(11 cards)
An electronic airway gas heater and moisturizer should be placed on the __________ limb of the circuit and a Heat and moisture exchanger should be placed on the ______________limb of the circuit when utilized
inspiratory, expiratory
Inspiratory phase time minus inspiratory pause time equals:
inspiratory flow time
During normal spontaneous breathing, ________ acts as the principle heat and moisture exchanger for inspired gases
nasal passages and upper airway
I:E ratio is best described as
inspiratory phase time compared to expiratory phase time
During positive pressure inspiration with a bag/valve/mask, or ambu bag, the non-rebreathing valve is__________, and the bag inlet valve is _________.
open, closed
True or False
An increase in fresh gas flow leads to a decrease in circuit gas humidity and a decrease in heat retention unless a circuit heater/humidifier is used
True
Expiratory phase time is the sum of:
B. Expiratory flow time and expiratory pause time
True or False
If gas saturated with water is heated, it can hold less water (it rains).
False
If the inflatable oxygen reservoir on a manual resuscitator is staying deflated during use, the gas being delivered to the patient
has a lower oxygen concentration than if the reservoir were staying inflated
American Society of Testing & Materials (ASTM) requires adult resuscitators to deliver a FiO2 of at least ______ when connected to O2 of 15 Liters/min.
40%
Inspiratory phase time is measured from
the beginning of inspiration until the beginning of expiration