Question 62 · LEK · ECG

The QT interval in the following ECG (speed 25 mm/s) should be classified as:

Figure for the question
  1. A. normal.
  2. B. shortened.
  3. C. prolonged.
  4. D. undetermined because T waves are negative.
  5. E. undetermined because it differs between various leads.
Hint

Compare the distance from the start of QRS to the end of the T wave with the RR interval at this fairly slow heart rate.

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