Anaesthesia All true about interaction of reading of spo2 and methemoglobinaemia, except- A MetHb absorbs red and infrared wavelength of light in a 1:1 ratio corresponding B Increase in Methb produce an underestimation when spo2 > 70% C Increase in Met Hb produce an overestimation when spo2 <70% D Does not get affected in Methemoglobinaemia 💡 Explanation All true about interaction of reading of spo2 and methemoglobinaemia, except- ✓ Correct Answer: D. Does not get affected in Methemoglobinaemia