Section IV - 31
ASA Standard Monitoring

You are called into the operating room (OR) and told that the pulse oximeter is broken. You look at the monitor and see that the reading is lower than expected with little, if any, waveform present. Which of the following is unlikely to be causing the problem?

Cold body part Vasospasm Reduced cardiac output Broken pulse oximeter Overinflation of blood pressure cuff proximal to pulse oximeter