Carbon dioxide

Carbon dioxide

CO2 content is hard to calculate because of the 3 forms of carriage:

• Dissolved (5%)
• Bicarbonate (90%)
• Carbamino compound (5%)

Contribution to a-v difference of CO2 content

• Dissolved - 10%
• Bicarbonate - 60%
• Carbamino - 30%

NB:

According to KB,

• PaCO2 = 40mmHg
• PvCO2 = 46mmHg

Thus,

• CvCO2 = 48mL of CO2/dL
• CvCO2 = 52mL of CO2/dL