The nurse should suspect Digoxin or other cardiac glycosides as the cause of ECG findings due to their mechanism of action on the heart.
The nurse should suspect that the prescribed medication causing the ECG findings is Digoxin or any other cardiac glycoside. Cardiac glycosides like Digoxin inhibit the Na/K ATPase, leading to increased Ca²+ levels that enhance heart contractions, which can be observed on an ECG.
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