This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Physiology
[{'content': 'All of the followings are responsible for Right shifting of O2 saturation curve; except: \nSelect and explain. \nA. Hypoxia, B. Hypocapnia, C. Increase temp, D. Increased 2,3 DPG', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. HypocapniaThe factors shift the curve to the right:Increased CO2 (Bohr effect)Increased hydrogen ion (decrease pH)Increased temperatureIncreased 2,3-bisphosphoglycerate (2,3-BPG)Shifts in Hb-O2 dissociation curveStored blood loses 2, 3-bisphosphoglycerate, causing a left shift in the curve, while hypoxia stimulates the production of 2,3-bisphosphoglycerate, thereby causing a right shift.Extra MileRight shiftAcidCO2 Exercise2, 3-BPGAltitudeTemperatureMnemonics: ACE BATs right handed', 'role': 'assistant'}]