An early sign of hyperkalemia is:
A) flat T waves on an ECG.
B) widening of the QT interval.
C) presence of an Osborn wave.
D) tall, peaked T waves on an ECG.

Question

Quizplus · Accepted Answer

Tall, peaked T waves on an ECG is an early sign of hyperkalemia. As potassium levels increase, the observed ECG changes progress to a widening of the QRS complex, a loss of P waves, and eventually, cardiac arrest.

An Early Sign of Hyperkalemia Is