Which factor predominantly influences the rightward shift of the oxygen dissociation curve?
ApH (Bohr effect)
B2,3-Bisphosphoglycerate (2,3-BPG)
CTemperature increase
DCarbon monoxide levels
Which poison shows cherry red discoloration of blood but normal PaO2 on blood gas analysis?
ACyanide
BHydrogen sulfide
CCarbon monoxide
DNitrites
Which of the following statements is MOST accurate regarding cyanosis in methemoglobinemia?
AAlways associated with tachycardia
BCaused by increased carboxyhemoglobin levels
CDoes not improve with supplemental oxygen
DCan occur in both congenital and acquired forms of the disease.
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