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.

Question

Quizplus · Accepted Answer

All of the above options are disadvantages of pulse oximetry. Pulse oximetry only measures the percentage of hemoglobin bound to oxygen, and does not provide information about carbon dioxide levels or tissue hypoxia. Additionally, it cannot differentiate between hemoglobin bound to oxygen and hemoglobin bound to carbon monoxide, leading to potential errors in diagnosis and treatment.

Which of the Following Is a Disadvantage of Pulse Oximetry