The TUP phenomenon
Report:
Sinus tachycardia 107/min
Borderline left axis deviation – 30o
Nonspecific ST/T changes
Prominent U wave
Comment:
The inferior leads show it well. If Marriott had not dignified it with a (however jocular) name105, it probably would not be here.
The T-U-P waves may, in some leads, have similar magnitude and mime atrial flutter. It is one of the (many) reasons why 12-lead ECG should always be available in preference to a single-lead rhythm strip.
It is, of course, possible to make a diagnosis from a single lead, but it would be like an ophthalmologist pronouncing on an undilated eye!
If you have any suggestions for or feedback on this report, please let us know.
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