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Questions and Answers
What percentage of CO2 in blood is dissolved?
What percentage of CO2 in blood is dissolved?
- 50%
- 40%
- 20%
- 30% (correct)
Which statement describes the Bohr Effect?
Which statement describes the Bohr Effect?
- Acidosis increases the affinity of hemoglobin for CO2
- CO2 decreases hemoglobin affinity for O2 (correct)
- CO2 and acidosis increase hemoglobin affinity for O2
- O2 increases hemoglobin affinity for CO2
What characterizes Diffusion Limited Transport of oxygen?
What characterizes Diffusion Limited Transport of oxygen?
- Rapid and complete equilibrium between PAo2 and Pao2
- O2 diffusion is complete after RBC traversal
- Impediment to diffusion across the alveolar capillary membrane (correct)
- Ability of blood to take on more oxygen is limited
How does the Haldane effect impact hemoglobin affinity?
How does the Haldane effect impact hemoglobin affinity?
What are the key requirements for adequate gas exchange in the lungs?
What are the key requirements for adequate gas exchange in the lungs?
In human lung disease, what is identified as the most important cause of gas exchange abnormalities?
In human lung disease, what is identified as the most important cause of gas exchange abnormalities?
Where does gas exchange predominantly occur in the human respiratory system?
Where does gas exchange predominantly occur in the human respiratory system?
What is the total surface area of the alveoli in adults for efficient gas exchange?
What is the total surface area of the alveoli in adults for efficient gas exchange?
What is the primary method of O2 and CO2 transport across the alveolar-capillary membrane?
What is the primary method of O2 and CO2 transport across the alveolar-capillary membrane?
In blood, approximately what percentage of O2 is carried in a dissolved state?
In blood, approximately what percentage of O2 is carried in a dissolved state?
Which factors move the oxyhemoglobin dissociation curve to the right, decreasing hemoglobin affinity for O2?
Which factors move the oxyhemoglobin dissociation curve to the right, decreasing hemoglobin affinity for O2?
What is one of the determinants of blood oxygen content according to the text?
What is one of the determinants of blood oxygen content according to the text?
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