shihui
Forum Newbie
Topics: 10
Posts: 17
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There are a few formulars in FA.
I feel it's hard to memerize the number and even harder to apply to real cases.
Do we really need to remember it? how do you guys deal with it?
FYI
M.Aci--winter's formula, Pco2=1.5(HCO3-)+8+/-2
M.Ala--PCO2increase0.7mmhg for every increased 1Eg/L HCO3
R.Aci--Acute,Chronic
R.Alc--Acute,Chronic
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| mjl1717
Forum Hero
Topics: 956
Posts: 5,452
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All Ican say is that those who score high will remember almost every nity picky detail.
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Smell the coffee! "Is That an Osler move??"
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| BumbleB
Forum Junior
Topics: 2
Posts: 83
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It's pretty quick to memorize the NORMAL co2/bicarc/ph values (of arterial blood)
which are 40/24/7.40
so, acidosis=ph down, CO2 up (makes sese since co2 is carbonic acid)
alkalosis = ph up, co2 down
then, compensation for acidosis is increased bicarb
and for alkalosis is decreased bicarb (bicarb changes in the same direction as co2, this also makes sense since bicarb and co2 are in equilibrium)
and changes in bicarb are small for acute alkalosis/acidosis (0.1-0.2 meq per mmhg co2) and larger for chronic cases (0.3-0.5 meq/mmhg).
Anyway, i just looked at first aid, and that is a lot to memorize but do like 4-5 cases from som e physio book using the formulas they give and you'll probably memorize it whether you want to or not :wink:
in acute
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