Alveolar ventilation and pulmonary ventilation Flashcards
1
Q
pulmonary ventilation
A
total air movement into/ out of lungs measured in L/min
2
Q
alveolar ventilation
A
fresh air getting to alveoli and therefore available for gas exchange measured in L/min
3
Q
what impact does dead space have on alveolar ventilation
A
takes away from the tidal volume and so intervenes more frequently when respiratory rate increases. less alveolar ventilation can occur
4
Q
alveolar gas partial pressure values
A
normal- PO2 100mmHg hyperventilation- PO2 120mmHg hypoventilation- PO2 30mmHg
5
Q
systemic arterial gas partial pressure values
A
normal- PCO2 40mmHg
hyperventilation- PCO2 20mmHg,
hypoventilation- PCO2 100mmHg
