Which of the Following Is a Disadvantage of Pulse Oximetry

question 68

Multiple Choice

Which of the following is a disadvantage of pulse oximetry?

• A) Tissue hypoxia may be present even with a normal SaO₂ reading.
• B) Pulse oximetry cannot differentiate between hemoglobin bound to oxygen and hemoglobin bound to carbon monoxide.
• C) Pulse oximetry gives no information about the amount of carbon dioxide in the blood.
• D) All of the above are disadvantages.

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