physio lecture 2.txt
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What three factors increase VC?
- Gender (M>F)
- Size (Height)
- Physical tone
What factor decreases VC?
What formula can be used to find the resting volume of the lungs?
- Functional Residual capacity (FRC)
- ERV + RV
What is the normal RV/TLC value?
.25 (25% of TLC)
What happens to RV/TLC during Obstructive lung disease?
What happens to RV/TLC during restrictive lung disease?
What is the normal FEV1/FVC?
What is the relationship between alveolar ventilation and PACO2?
- VA increases, PACO2 decreases
- VA decreases, PACO2 increase
If CO2 production doubles, what happens to alveolar CO2?
alveolar CO2 doubles as well
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