Final answer:
Titration of oxygen to 94-98% in ROSC patients is aimed at avoiding hyperoxia and ensuring sufficient hemoglobin saturation for optimal tissue oxygenation while preventing the negative effects of excessive oxygen levels.
Step-by-step explanation:
The titration of oxygen to 94-98% in post-ROSC (Return of Spontaneous Circulation) patients is crucial for optimizing oxygen delivery and preventing hyperoxia-induced injury. Monitoring percent saturation with a pulse oximeter ensures that hemoglobin is adequately saturated with oxygen without the risks associated with excessive oxygen levels, such as increased oxidative stress and vasoconstriction that can impair perfusion.
Normal pulse oximeter readings range from 95-100%, with lower values indicating hypoxemia or low blood oxygen levels. In ROSC patients, careful oxygen titration helps in avoiding the detrimental effects of both hyperoxia and hypoxia. The rationale for maintaining the oxygen saturation within the 94-98% range is backed by the relationship depicted in the oxygen-hemoglobin saturation/dissociation curve, which shows the efficacy of hemoglobin in oxygen binding and release to the tissues.