Final answer:
The patient care technician should recognize changes in the waveform of an EKG that indicate a myocardial infarction and report them immediately.
Step-by-step explanation:
The patient care technician should recognize changes in the waveform of an EKG that indicate a myocardial infarction (heart attack) and report them immediately to the nurse. One specific change to look for is the presence of ST-segment elevation or depression, which can indicate acute myocardial infarction. Another change is the appearance of pathological Q-waves, which can suggest a previous heart attack. Lastly, the technician should be aware of T-wave inversion, which can also be a sign of myocardial infarction.
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