respiratory Flashcards
what is oxygen?
oxygen is one of the 2 main gases in the air we breathe & O2 and contains 21% of gas in air
name the 3 processes
1) ventilation: breathing/respiratory
2) gas exchange: oxygen/ carbon dioxide
3) transport of gases
explain ventilation
the process of moving gases into and out of the lungs.
- expansion of the lungs or inspiration= active process
- contraction of the lungs or exportation= passive
explain gas exchange
oxygen is transferred from lungs to blood for transportation to tissues. Carbon dioxide is transferred from blood to Aveoli to be exhaled.
normal gas exchange depends on what factors
1) concentration gradient of the gases
2) intact alveolar membranes
3) adequate blood supply to the aveoli
explain pneumonia
oxygen can not get through the membranes (oxygen level is low)
explain transport of gases
for oxygen to be delivered to body tissues, it is dependent on an intact and functioning cardiovascular (heart, blood vessels and blood flow)
whats the respiratory rate the normal
10-20 bpm
what is bradypnea
rate < 10 bpm
what is tachypnea
R> 24 bpm
what is apnea
short periods with no breathing
explain respiratory arrest
prolonged periods with no breathing
when taking the respiratory rate
important to be discreet when taking RR.
adult= 10-20 bpm
not a conscious process
explain respiratory rythm normal
rythmic, even chest movement, effortless, equal intervals between cycle
explain depth of respirations
deep, shallow, accessory muscle, asses with inspirometer