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A Patient Is Hyperventilating

Question 64

Multiple Choice

A patient is hyperventilating.The "blowing off" of excessive carbon dioxide causes a decrease in blood H+ concentration.How can the carbonic acid-bicarbonate buffer system function to correct this imbalance?
CO2 + H2O ? H2CO3 ? H+ + HCO3-


A) HCO3- binds with H+ to form H2CO3 and lower pH
B) HCO3- binds with H+ to form H2CO3 and raise pH
C) H2CO3 dissociates to form more H+ and lower pH
D) H2CO3 dissociates to form more H+ and raise pH

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