The nurse performs a 12-lead electrocardiogram (ECG) on a client who is in the first hour of care after a myocardial infarction (MI). The client's T-waves appear tall and peaked. How should the nurse interpret this finding?
a. This is a normal finding in the first hour after an MI.
b. This is a warning sign for an impending massive heart attack.
c. This as abnormal because T-waves are typically inverted during an acute MI.
d. This tracing should be compared with a previous 12-lead ECG prior to interpretation.