How does hypoventilation affect the blood's pH?
Less H and HCO3 form, increasing the blood's pH.
More H and HCO3 form, increasing the blood's pH.
Less H and HCO3- form, decreasing the blood's pH.
More H and HCO3 form, decreasing the blood's pH.
The Correct Answer is D
More H and HCO3 form, decreasing the blood's pH.
Rationale: Hypoventilation is a condition where the breathing rate is too slow or shallow, resulting in insufficient removal of carbon dioxide (CO2) from the body. CO2 reacts with water (H2O) to form carbonic acid (H2CO3), which can dissociate into hydrogen ions (H+) and bicarbonate ions (HCO3-). Therefore, when CO2 accumulates in the blood due to hypoventilation, more H2CO3 is formed, which lowers the blood's pH by increasing the concentration of H+ and HCO3-.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is D
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