CO2 SUMMARY Flashcards
1
Q
what percentage of CO2 transported in blood is bound to bicarbonate?
A
70%
2
Q
what percentage of CO2 transported in blood is bound to Hb?
A
23%
3
Q
what percentage of CO2 transported in blood is in free solution?
A
7%
4
Q
how much CO2 is transported in blood?
A
4 mL/100 mL
5
Q
PCO2 in arterial blood
A
40 mmHg
2.4 mL CO2/100 mL of blood
6
Q
PCO2 in venous blood
A
45 mmHg
2.8 mL CO2/100 mL of blood
7
Q
what is the Haldane effect?
A
binding of O2 to Hb alters its binding to CO2
8
Q
in the Haldane effect, increased binding to O2 decreases or increases Hb affinity to bind CO2?
A
decreases becauses as O2 binds to Hb this decreases binding of CO2 from Hb via offloading, this is in alveolar capillaries
in systemic capillaries, offloading O2 from Hb and increase binding of CO2 to Hb
