Isocapenic buffering is?

Isocapenic buffering is ?
a) Increcased pCO2 with increased CO2
b) Increcased pCO2 with decreased CO,
c) Normal pCO, with increased CO2
d) None of the above

Correct Answer - C
Ans. C. Normal pCO, with increased CO2

  • During exercise, initially CO2 production and increase in ventilation
    are proprotionate.
  • So, pCO2 remains the same.
  • This is called isocapnic buffering.
  • But, in later stages, ventilation increases more than the rate of
    CO2 production.
  • As a result, PCO2 decreases.