12-lead ECG interpretation (in-hospital)

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The quiz
You are working the midnight shift in the coronary care unit. You are taking care of a 52-year-old female patient who was admitted from the emergency department earlier in the day to rule out coronary artery disease. She had chest pain that was relieved by nitroglycerin in the emergency department. Her ECG in the emergency department was within normal limits. She is scheduled for an elective cardiac catheterization in the morning. She calls you to her room because the middle of her chest feels heavy and the pressure now radiates into her back.


about 3–5 minutes

You are working the midnight shift in the coronary care unit. You are taking care of a 52-year-old female patient who was admitted from the emergency department earlier in the day to rule out coronary artery disease. She had chest pain that was relieved by nitroglycerin in the emergency department. Her ECG in the emergency department was within normal limits. She is scheduled for an elective cardiac catheterization in the morning. She calls you to her room because the middle of her chest feels heavy and the pressure now radiates into her back.

Question 1 of 6

You complete an ECG and it reveals the following. It appears that your patient is
Quiz question

Question 2 of 6

You can make this diagnosis because the ECG reveals
Quiz question

Question 3 of 6

Given the patient's ECG you should
Quiz question

Question 4 of 6

An inferior wall infarction may be associated with

Question 5 of 6

The following ECG reveals which type of myocardial infarction?
Quiz question

Question 6 of 6

An anterior wall infarction is associated with the occlusion of which coronary artery?

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Correct answers

  • An acute inferiolateral wall infarction.
  • ST elevation in leads II, III and aVF.
  • Notify the physician immediately, expect immediate cardiac catheterization.
  • Right ventricular infarction.
  • Anterior wall
  • Left anterior descending

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Current version
Jul 17, 2026

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Changes: Reviewed quiz content and verified clinical accuracy
Jul 13, 2026

Reviewed by:

Judy Haluka
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