A pattern is not a diagnosis.

ST elevation and STEMI

The ST segment follows the QRS and precedes the T wave. Elevation is assessed against the baseline across relevant leads. A single Lead II trace cannot establish the lead distribution or diagnostic context needed for STEMI recognition. ST elevation also has other causes.

RhythmDock does not offer a simulated STEMI diagnosis. A future 12-lead teaching module needs reviewed, anatomically consistent examples and clinical context.

Hyperkalemia-associated findings

Possible findings include peaked T waves, diminished P waves, PR prolongation and QRS widening. ECG findings vary, may be absent, and cannot reliably determine potassium concentration or confirm hyperkalemia. These features should not be taught as a fixed, predictable progression.

Torsades de pointes

Torsades is polymorphic ventricular tachycardia associated with a prolonged QT in the preceding rhythm. The twisting appearance alone is insufficient to establish torsades. Our new simulator example illustrates changing polarity and amplitude, but does not show the preceding QT. It is excluded from identification quizzes.

AHA reference: polymorphic VT and torsades