Physiologic deadspace Flashcards
1
Q
Vd
A
Vd=Vt *(PaCO2-PeCO2)/PaCO2
Vt=tidal volume
PaCO2=arterial PCO2
PECO2=expired air PCO2
“Taco, Paco, PEco, Paco”
2
Q
What is physiologic dead space?
A
Anatomic dead space of conducting airways plus functional dead space in alveoli
Volume of inspired air that does that take part in gas exchange.
3
Q
Biggest contributor of functional dead space
A
Apex of healthy lung is the largest contributor of functional dead space.
