Home E|X|G - ECG Interpretation Bootcamp

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Undergraduate ECG Teaching

Regarding step 1 of the six step rhythm analysis, the trace below shows an absence of electrical activity. What is the most likely cause for this?

Select one answer

Asystole cardiac arrest

Lead falling off of patient

Interference from other electrical equipment in an otherwise healthy patient

None of the above

Regarding step 2 of the six step rhythm analysis, calculate the heart rate of this ECG trace

Select one answer

Approximately 40bpm

Approximately 60bpm

Approximately 80bpm

Approximately 100bpm

Regarding Step 3 of the six step rhythm analysis, how would you describe the following trace in terms of regularity?

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Regular

Regularly Irregular

Irregularly Irregular

Concerning step 4 of the six step rhythm analysis, What is the most likely explanation for this broad QRS morphology seen in lead V1?

Select one answer

This is a variant of a normal ECG

The ECG leads have been put on the wrong limbs

There is a conduction block through the AV node

There is likley a conduction block in the bundle branches

Concerning step 5 of the six step rhythm analysis, in which of the following rhthms would you NOT expect to see evidence of p-waves

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Atrial flutter

Sick sinus syndrome

ventricular trigeminy

Atrial fibrillation

Concerning step 6 of the six step rhythm analysis, what is the best description of the P:QRS relationship in the following trace

Select one answer

1:1 ratio

2:1 ratio

3:1 ratio

4:1 ratio

No relationship between p-waves and QRS complex

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