"T-Waves were high" are you mean Venticular R on T? I go thro my holter report and never see a "T" by it own. It has ST Segment analysis. Is it the one? What is the normal figure/rate for T-Waves?
beagle,
If your potassium was high at the time that was the case. The only way to tell would be to check your potassium level. However, it usually takes an abnormally (and often dangerously high level) to actually cause ECG changes. The ECG changes from hyperkalemia are fairly characteristic, but there are many causes of 'high' t waves such as those seen in young healthy patients, those seen from hypertension and those seen from ischemia. I would have to see the ecg to know one way or another.
good luck