Airway questions Flashcards
(12 cards)
Intrapulmonary shunting occurs when…
blood from right side of the heart bypasses nonfunctional alveoli and returns unoxygenated
when applying a NRM, make sure the bag is…
fully inflated
how do you withdraw a catheter from oropharynx while suctioning the oropharynx
suction while withdrawing
what cartilage is a firm ring on inferior larynx
Cricoid
exchange of O2 and co2 is where
alveolar sacs
when is a nasal cannula most appropriately used in prehospital setting
when a patient can’t tolerate a NRM
what makes a nasopharyngeal airway beneficial
maintains airway in semi-conscious patient w/ gag reflex
partial pressure of O2 in alveoli:
partial pressure of CO2 in alveoli:
O2 - 104 mmHg
CO2 - 40 mmHg
The process of exchanging O2 and CO2 between alveoli and blood of capillaries is…
external respiration
How to determine proper size oropharyngeal airway
measure from corner of mouth to earlobe
When to use NRM vs BVM
NRB - patient is conscious and adequately breathing on their own, but have hypoxia
BVM - patient is not breathing or not adequately breathing
if a patients blood pressure decreases, how should you adjust the volume of ventilations
reduce the rate/volume of ventilations
