12-lead ECG interpretation practice test - prehospital emergency

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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

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.

Question 1 of 6

You perform an ECG and it reveals
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Question 2 of 6

Given the above ECG the healthcare provider must assume
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Question 3 of 6

The most important leads to look at to make this diagnosis are
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Question 4 of 6

It is difficult to determine myocardial infarction in this ECG because of
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Question 5 of 6

The following ECG reveals
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Question 6 of 6

The axis of this ECG is
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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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Current version
Nov 24, 2014

Written by:

William Entriken
V.P., General manager of Pacific Medical Training and is ultimately responsible for keeping the customers happy and coming back, growing the business and keeping the team going.
Changes: Initial quiz creation and review