<prompt> In a patient with a plasma pH of 7.1 the HCO3 H2CO3 ratio in plasma is:201021  <response>: Ans: b 10 Ref: Ganong, 22nd ed, p. 732This is a direct question from Ganong self study MCQs Chapter 39 Q.9This is based on the Henderson-Hasselbach equationpH pK logHCO3H2CO3pK - Ionisation constantIn body fluid it is more appropriate to use the apparent ionization constant k 6.10 study by heartSo, pH 6.10 logHCO3-H2CO3pH 7.1 given7.1 6.10 logHCO3-H2C03 log HCO3-H2CO3 1log 10 1 HCO3-H2CO3 10 