Physics · Optics
A pulse oximeter measures the ratio between oxyhemoglobin and hemoglobin in the pulsating condition on the finger. Which combination of wavelengths can obtain a differential absorption to measure blood oxygen saturation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Ultraviolet and far-ultraviolet
- 2Far-ultraviolet and visible
- 3Visible and Infrared✓
- 4Ultraviolet and Infrared
Correct answer
Visible and Infrared
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