Answer :
Final answer:
The nurse should suspect Digoxin or other cardiac glycosides as the cause of ECG findings due to their mechanism of action on the heart.
Explanation:
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.
Learn more about Cardiac medications and ECG findings here:
https://brainly.com/question/39545744