Anaesthesia Monitoring in Anesthesia 2147ce26

All true about interaction of reading of spo2 and methemoglobinaemia, except-

MetHb absorbs red and infrared wavelength of light in a 1:1 ratio corresponding

Increase in Methb produce an underestimation when spo2 > 70%

Increase in Met Hb produce an overestimation when spo2 <70%

Does not get affected in Methemoglobinaemia

High-Yield Explanation

Met Hb absorb red and infrared wavelengths of light in a 1:1 ratio corresponding to an SpO2 of approximately 85%. Therefore, increases in Met Hb produce an underestimation when SpO2> 70% and an overestimation when SpO2 <70%.

All true about interaction of reading of spo2 and methemoglobinaemia, except-

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