dalton's law
-:- Pair = Po2 + Pn2 + Pco2 + Par
henry's law
-:- C = alphaP
the concentration/amount of a dissolved gas is a function of the gas's Pp and
solubility coefficient
partial pressure calculation
-:- Pgas = Fgas * Patm
inspired partial pressure
-:- Pi,o2 = Fo2 * (Patm - Ph2o)
...
✓ -:- smoke cannot be destroyed by macrophages --> production of
collagen --> collagen/scar tissue on the alveoli --> increase in T -->
decrease in gas exchange
emphysema and fick's equation
✓ -:- airway obstruction as a result of inorganic particles --> triggers the
production of elastase which breaks down elastin --> alveoli lose
elastance --> alveoli recoil --> increase in T and decrease in A --> lower
gas exchange
edema and fick's equation
✓ -:- swelling and increased fluid in the interstitial space --> increase in T
(greater diffusion distance) --> decrease in gas exchange
asthma and fick's equation
✓ -:- hyper responsiveness/sensitivity of the airw ays --> airway
obstruction, swelling, mucus, etc --> increase in T --> decrease in gas
exchange
3 | P a g e | G r a d e A + | 2 0 0 2 5
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