Physiologic pH is maintained at approximately 7.4 because bicarbonate (HCO₃) and carbonic acid (H₂CO₃) exist in what ratio?
A)20:1
B)1:20
C)10:2
D)10:5

Question

Quizplus · Accepted Answer

The relationship between HCO₃ and H₂CO₃ is usually expressed as a ratio. When the pH is 7.4, this ratio is 20:1 (HCO₃:H₂CO₃). The other options do not accurately identify physiologic pH by the correct ratio of HCO₃ and H₂CO₃.

Physiologic PH Is Maintained at Approximately 7