How Is the Percentage of Functional Hemoglobin That Is Saturated

question 5

Multiple Choice

How is the percentage of functional hemoglobin that is saturated with oxygen determined via pulse oximetry?

• A)The percentage of red light that lands on the photodiode represents the SPo₂ (oxygen saturation as determined by pulse oximetry).
• B)The percentage of infrared light that reaches the photodetector reflects the SPo₂.
• C)The ratio of the red and infrared light that reaches the photodiode signifies the SPo₂.
• D)The sum of the amount of red and infrared absorbed by the tissue determines the SPo₂.