STUVIA 2024/2025
Egan chapter 19 - Resp 123 Pulse Oximetry
0 mm Hg - ✔✔At the very beginning of exhalation, the PETCO2 normally should be at what level?
100 - 600 mm Hg - ✔✔You obtain a SpO2 reading of 100% on a patient receiving O2 through a
non-rebreathing mask. What range of PaO2 is possible in this patient?
100% O2
50% O2
21% O2
100% N2 - ✔✔You are asked to calibrate an Oxygen analyzer. Choose all the gases would you use
for this procedure.
2% - ✔✔Under ideal conditions, electrochemical oxygen (O2) analyzers have approximately what
degree of accuracy?
35 - 43 mm Hg - ✔✔In healthy adults, what is a normal end-tidal PETCO2 range?
88 - 92% - ✔✔For continuous monitoring of adults and children, you should set the pulse oximeter's
low alarm in what range?
%
Capnography - ✔✔What is the measurement of CO2 in respiratory gases called?
Change the sensor or electrode. - ✔✔During calibration of a Clark polarographic O2 analyzer, you
cannot get the sensor to read 100% O2 when exposed to 100% Oxygen, even after adjusting its
calibration control. The unit has new batteries.
False readings leading to incorrect clinical decisions. - ✔✔What is the greatest hazard of pulse
oximetry?
HbCO - ✔✔Which of the following can cause false high readings when using a pulse oximeter?
Invasive procedures require insertion of a device into the body
Invasive procedures provide more accurate data but carry greater risks. - ✔✔true about invasive
versus non-invasive monitoring?
Pulse oximetry - ✔✔You must immediately begin monitoring the oxygenation status of an infant
admitted to the emergency department in severe respiratory distress. What is the first step?
stuvia
Egan chapter 19 - Resp 123 Pulse Oximetry
0 mm Hg - ✔✔At the very beginning of exhalation, the PETCO2 normally should be at what level?
100 - 600 mm Hg - ✔✔You obtain a SpO2 reading of 100% on a patient receiving O2 through a
non-rebreathing mask. What range of PaO2 is possible in this patient?
100% O2
50% O2
21% O2
100% N2 - ✔✔You are asked to calibrate an Oxygen analyzer. Choose all the gases would you use
for this procedure.
2% - ✔✔Under ideal conditions, electrochemical oxygen (O2) analyzers have approximately what
degree of accuracy?
35 - 43 mm Hg - ✔✔In healthy adults, what is a normal end-tidal PETCO2 range?
88 - 92% - ✔✔For continuous monitoring of adults and children, you should set the pulse oximeter's
low alarm in what range?
%
Capnography - ✔✔What is the measurement of CO2 in respiratory gases called?
Change the sensor or electrode. - ✔✔During calibration of a Clark polarographic O2 analyzer, you
cannot get the sensor to read 100% O2 when exposed to 100% Oxygen, even after adjusting its
calibration control. The unit has new batteries.
False readings leading to incorrect clinical decisions. - ✔✔What is the greatest hazard of pulse
oximetry?
HbCO - ✔✔Which of the following can cause false high readings when using a pulse oximeter?
Invasive procedures require insertion of a device into the body
Invasive procedures provide more accurate data but carry greater risks. - ✔✔true about invasive
versus non-invasive monitoring?
Pulse oximetry - ✔✔You must immediately begin monitoring the oxygenation status of an infant
admitted to the emergency department in severe respiratory distress. What is the first step?
stuvia
