12-lead ECG interpretation practice test - prehospital emergency

The quiz
You are treating a patient complaining of 8/10 substernal chest pain that started while participating in an exercise class. The pain doesn't change with position and radiates down the left arm. He has no previous history of anything other than ingrown toenails. His vital signs are BP: 140/90 pulse 84 RR: 18 pulse oximetry 96% on room Air.


about 3–5 minutes

Question 1 of 6

You perform an ECG and it reveals
Quiz question

Question 2 of 6

Given the above ECG the healthcare provider must assume

Question 3 of 6

The most important leads to look at to make this diagnosis are

Question 4 of 6

It is difficult to determine myocardial infarction in this ECG because of

Question 5 of 6

The following ECG reveals
Quiz question

Question 6 of 6

The axis of this ECG is
Quiz question

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Correct answers

  • Left bundle branch block.
  • The patient is having a myocardial infarction.
  • Leads V5 and V6.
  • Diffuse ST T wave changes throughout.
  • A normal ECG.
  • Normal.

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