Correlation of Spo2 Measurement by Pulseoximetry with Arterial Blood Gas Analysis in Patients with Uncontrolled Type 2 Diabetes On Oxygen Therapy.

UNLABELLED

Pulse oximetry is widely used as a noninvasive tool for continuous monitoring of artery oxygen saturation (SaO2) but pulse oximeter oxygen saturation (SpO2) may overestimate arterial blood gases-determined SaO2 in acute sickle chest syndrome and severe sepsis.

OBJECTIVES

To estimate difference in Spo2 levels between pulse oximetry and arterial blood gas analysis among patients with elevated HbA1c.

MATERIAL

Present study is an evaluation of diagnostic study conducted among 150 diabetic patients for a period of 18 months. Data collected was entered in Microsoft excel and analysed using SPSS version 24.0.

OBSERVATION

There is statistically no significant association between two procedures in diagnosing hypoxia overall and the individuals having saturation more than 90.There is statistically significant association between both the procedure in the individuals having saturation 80 to 90.(P=0.0001).

CONCLUSION

Elevated Hba1c is not associated with false overestimation of SpO2 when measured with pulse oximetry. Pulse Oximetry has high accuracy in estimating oxygen saturation with sp02>90% and can be used instead of arterial blood gas. The study suggests that in patients with SpO2 <90 however, the exact estimation of SaO2 and the evaluation of hypoxemia by pulse oximeter is not a good alternative for ABG analyzer.