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## MiM IS ### Pulse Ox ### Naomh Arterial Blood Not Round to Hemosloding 11. What is the relationship between SpO2, SaO2, and PaO2? - SpO2 is the amount of hemoglobin saturated with O2 as measured by pulse oximetry. - SaO2 is the amount of hemoglobin saturated with O2 as measured by an arterial...

## MiM IS ### Pulse Ox ### Naomh Arterial Blood Not Round to Hemosloding 11. What is the relationship between SpO2, SaO2, and PaO2? - SpO2 is the amount of hemoglobin saturated with O2 as measured by pulse oximetry. - SaO2 is the amount of hemoglobin saturated with O2 as measured by an arterial blood gas. - PaO2 is the pressure of O2 exerted within the alveoli for gas exchange. - According to the Oxyhemoglobin Dissociation Curve, SaO2 will decrease as the PO2 increases. * **All the above are correct.** 12. The main difference between a low flow device and a high flow device is: - A low flow device is designed only for mild to moderate hypoxemia. - A high flow device must be administered via a face mask. - **Only low flow devices should be placed on a cyanotic patient.** - A high flow device will generally meet the flow demand of a patient. 13. You enter a patient's room who is on a 5L nasal cannula. You immediately hear a high-pitched sound. What would you do now? - **Replace the bubble humidifier** - Check for a leak between the flowmeter nozzle and the bubble humidifier. - Check for an obstruction in the nasal cannula tubing. 14. A patient is on a 65% air entrainment device at 15 lpm. What is the total flow of the device? - **35 L/min** 15. A physician has asked you to place an infant under an oxygen hood. Which of the following statements is NOT correct concerning the application of this therapy? - Excessive noise can be stressful for the infant. - **You must maintain a minimum of 5 L/min flow.** - You should try to place an oxygen analyzer near the bottom of the hood where O2 tends to pool. - Temperature regulation is important for both hyperthermia and hypothermia.