Which factor does NOT lead to a right shift in the oxygen-hemoglobin dissociation curve?
Understand the Problem
The question is asking which factor does not cause a right shift in the oxygen-hemoglobin dissociation curve. A right shift indicates a decrease in hemoglobin's affinity for oxygen, usually due to factors such as increased temperature, increased metabolic activity, and increased carbon dioxide levels.
Answer
Carbon monoxide does NOT lead to a right shift.
Increased levels of carbon monoxide do NOT lead to a right shift in the oxygen-hemoglobin dissociation curve.
Answer for screen readers
Increased levels of carbon monoxide do NOT lead to a right shift in the oxygen-hemoglobin dissociation curve.
More Information
Carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, leading to a leftward shift in the curve as it prevents oxygen unloading.
Tips
A common mistake is assuming that all respiratory gases affect the oxygen dissociation curve similarly. It is critical to understand the specific impact of each factor on hemoglobin's oxygen affinity.
Sources
- What factors affect hemoglobin's oxygen affinity? - medmastery.com
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