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  #1  
Old 06-04-2010
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Urine Sample Anion Gap?

Can someone pls clarify the positive and normal gap for me? I dont understand why the body does not balance itself in a positive gap but does in a normal gap (with bicarb and Cl).
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  #2  
Old 06-04-2010
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Listening Please clarify

So am trying to squeeze my mind to understand what you mean by your question but I could not

Please clarify more, what is it exactly that you don't understand!
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Old 06-05-2010
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To be honest im not sure what I am trying to ask either
The concept has me memorizing and not understanding.
Always acidosis. yes
Always metabolic. yes
Now why would something like Lactic Acidosis be positive and RTA be normal gap?

thanks
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Old 06-05-2010
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in some diseases the loss of hco3- is balanced by anions of the acid eg lactate so the positive(cations) ions are increasing and the negative (anions ) are decreasing

the equation is( na+) -(chloride ion +hco3-) so as i said above if u think that statement accoding to this equation there is an increase in anion gap

but suppose say in diarrhea loss of hco3- is counterbalance by cl- so they balance each other so there wont be any change in the anion gap

hope u got it
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Old 06-05-2010
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Link Useful related thread

Have a look here
http://www.usmle-forums.com/usmle-st...-acidosis.html

The above link explains what you are looking for

Also I recommend you use the search function above right. and search for "anion gap" and you'll see a number of useful threads talking about it.
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