A = ɛDC, where ɛ is _______
A. Incident light Intensity
B. Transmitted light Intensity
C. Extinction coefficient
D. Concentration
A. Incident light Intensity
B. Transmitted light Intensity
C. Extinction coefficient
D. Concentration
The correct choice is C. Extinction coefficient
A pulse oximeter shows the percentage of arterial hemoglobin in the oxyhemoglobin (HbO2) and hemoglobin (Hb). This observation A = -logT = log I0/I = ɛDC where Io and I are incident and transmitted light intensities, e is the extinction coefficient, D is the depth of the absorbing layer and C is concentration.