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  #1  
Old 03-28-2012
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RBC P50 and hemoglubulin

does P50 decrease by decreasing hemoglobin concentration ?? and why ???
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  #2  
Old 03-28-2012
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In simple anemia or polycythemia the p50 dose not change, but the oxygen content will change.
Oxygen content increase with polycythemia and decrease with anemia. P50 will stay close to 25.
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Old 03-28-2012
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i only remember p50 decreasing when you have CO poisoning

so im mad lost here.
i dont think anemia would affect p50
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Old 03-28-2012
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Quote:
Originally Posted by Dr.NickRiviera View Post
i only remember p50 decreasing when you have CO poisoning

so im mad lost here.
i dont think anemia would affect p50
Anything cause a left shift of Hb curve will decrease p50.
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Old 03-28-2012
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Quote:
Originally Posted by dr_nama View Post
Anything cause a left shift of Hb curve will decrease p50.
yea i guess that makes sense
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Old 03-28-2012
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this is question in NBME 12
it asks which decrease with anemia , I know no direct relation to P50 , but id HB decrease that would decrease the P50 required for HB saturation ????

there was also another option which is decrease arterial O2 binding capacity , which was choosen by the key and I could not undertand why??
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Old 04-27-2012
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PLEASE, PLEASE, PLEASE DONT ASK QUESTIONS FROM NBMES WITHOUT PUTTING IT IN THE TITLE OF THE QUESTION! That is just really unfair.
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