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Which of these statements is true?

Select one answer

A) Atrial repolarisation occurs within the PR interval

B) The T-wave represents atrial AND ventricular repolarisation

C) The ST segments always falls on the isoelectric line

D) The QT interval represents ventricular depolarisation AND repolarisation

The ECG has captured this recording of ventricular depolarisation. What wouldbe the most correct nomenclature for this waveform complex

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QRS complex

QS complex

RSR' complex

rSR' complex

Whic of these statements is correct?

Select one answer

A) The PR interval is measured from the start of the p-wave to the peak of the R-wave

B) The QT interval is measured from the start of the QRS complex to the start of the T-wave

C) The PR interval is measured from the end of the p-wave to the start of the QRS complex

D) None of the above

Which of the following represents a normal QRS duration

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0.09s

135ms

0.2s

0.04s

How long should a normal PR interval be on an ECG trace set to standard ECG timing and voltage settings?

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Less than 5 small squares

Between 3-5 small squares

Less than 1 large square

Less than 2 large squares

Undergraduate ECG Teaching