To validate patient readings obtained from a transcutaneous blood gas monitor, what should you do?
a. Measure and compare the PtcO2 and Ptc-CO2 at three or more different sites.
b. Compare the monitor's readings to a con-current pulse oximetry reading.
c. Compare the monitor's readings to those obtained with a concurrent ABG sample.
d. Compare the patient reading to those ob-tained when calibrating the sensor.
ANS: C
Once the electrodes are properly set up, the clinician should compare the monitor readings with those obtained with a concurrent ABG.
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