Which of the following is not a possible factor that may cause a false negative result in a stress test?
a. technical or observer error
b. monitoring too many lead on the ECG to detect changes
c. musculoskeletal limitations to exercise preceding cardiac abnormalities
d. failure to reach ischemic threshold
Answer: b. monitoring too many lead on the ECG to detect changes
Monitoring too many ECG leads is not a factor for getting a false negative result from a stress test; rather, monitoring too few leads can be a possible source of error leading to a false negative. all other answers are possible factors that can result in a false negative result.