Tall peaked T waves is a sign of hyperkalemia, the nurse should discontinue KCL as this client is in hyperkalemic state.
Narrow QRS complex reflects rapid activation of the ventricles by the purkinje system, this suggest that arrhythmia starts above or in the His bundle. Hyperkalemia doesn’t cause narrowing of the QRS bundle.
Shorten PR interval can be as a result of an accessory bypass tract between atria and ventricles and not necessarily as a result of hyperkalemia.
Prominent U wave is commonly seen in hypokalemic state and not in a client with hyperkalemia.
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