Quiz Part 1 The Basics – ECG Simplified

Welcome to Part 1: The Basics Quiz

There are total of 34 questions. Some images may take a few seconds to appear.

Question #1: Which leads represent the anterior part of the heart?

I II III aVR aVL aVF V1 V2 V3 V4 V5 V6

Check Answer

Question #2: Which leads represent the inferior part of the heart?

I II III aVR aVL aVF V1 V2 V3 V4 V5 V6

Check Answer

Question #3: Which leads represent the lateral part of the heart?

I II III aVR aVL aVF V1 V2 V3 V4 V5 V6

Check Answer

Question #4: Which leads represent the septal part of the heart?

I II III aVR aVL aVF V1 V2 V3 V4 V5 V6

Check Answer

Question #5: Does this ECG/EKG show a sinus rhythm?

None

Check Answer

Question #6: Does this ECG/EKG show a sinus rhythm?

Yes

None

Check Answer

Question #7: Does this ECG/EKG show a normal sinus rhythm?

Yes

None

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Question #8: Does this ECG/EKG show a normal sinus rhythm?

Yes

None

Check Answer

Question #9: True or False. This ECG/EKG shows a sinus rhythm

True

False

None

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Question #10: True or False. The P waves in this ECG/EKG are normal.

True

False

None

Check Answer

Question #11: Assign the correct letters to the QRS complexes

A - QS, B - rSR’, C - qRs, D - RS

A - rSR’, B - qRS, C - RS, D - QS

A - qRs, B - rSR’, C - RS, D - QS

A - qRs, B - rSR’, C - QS, D - RS

None

Check Answer

Question #12: Which leads in this ECG/EKG have QS complexes?

I II III aVR aVL aVF

Check Answer

Question #13: The duration of the QRS complexes in the ECG/EKG is:

0.08 sec

0.8 sec

0.12 sec

0.18 sec

None

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Question #14: The QRS complexes in this ECG/EKG are

Narrow

Wide

None

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Question #15: The P:QRS ratio in this ECG/EKG is

1:1

2:1

4:1

None of the above

None

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Question #16: The P:QRS ratio in this ECG/EKG is

1:1

2:1

4:1

None of the above

None

Check Answer

Question #17: The normal QRS axis (cardiac axis) of the heart is between

-90 and -180 degrees

-30 and -90 degrees

+90 and +180 degrees

-30 and +90 degrees

None

Check Answer

Question #18: What is the main QRS direction in the following examples

A - equiphasic, B - positive, C - equiphasic

A - negative, B - positive, C - equiphasic

A - equiphasic, B - positive, C - positive

A - negative, B - positive, C - positive

None

Check Answer

Question #19: If the mean QRS is positive in lead I, the mean QRS vector would land in which blue hemisphere in the hexaxial frontal plane diagram?

None

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Question #20: Assign the correct lead to the pair of positive/negative hemispheres in the hexaxial frontal plane diagrams seen here

A - lead aVF, B - lead aVL

A - lead II, B - lead aVF

A - lead aVF, B - lead II

A - lead III, B - lead aVF

None

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Question #21: For the axis of the heart to fall within the purple shaded area on this hexaxial frontal plane diagram, the main QRS direction must be

negative in lead I and negative in lead aVF

negative in lead I and positive in lead aVF

positive in lead I and negative in lead aVF

positive in lead I and positive in lead aVF

None

Check Answer

Question #22: When the main QRS is positive in lead I and negative in lead aVF the QRS axis will fall within the purple shaded area as shown here. What is your next step?

check lead aVR

check lead aVL

check lead III

check lead II

there is no need to check any further leads

None

Check Answer

Question #23: The QRS axis in this ECG/EKG is between

-30 and +90 degrees

-30 and -90 degrees

-90 and -180 degrees

+90 and +180 degrees

None

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Question #24: The QRS axis in this ECG/EKG is considered

Normal

Abnormal

None

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Question #25: The QRS axis in this ECG/EKG is considered

Normal

Abnormal

None

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Question #26: The ECG/EKG shows ST segment elevation in the following leads

I II III aVR aVL aVF V1 V2 V3 V4 V5 V6

Check Answer

Question #27: The duration of the PR interval in the tracing is:

0.06 sec

0.16 sec

0.6 sec

0.12 sec

None

Check Answer

Question #28: The PR intervals in this ECG/EKG are

Normal

Abnormal

None

Check Answer

Question #29: The QTc interval in this ECG/EKG is

0.36 sec

0.46 sec

0.54 sec

0.80 sec

None

Check Answer

Question #30: The QTc interval in this ECG/EKG is

Normal

Abnormal

None

Check Answer

Question #31: The heart rate in the following ECG/EKG is

180/min

140/min

100/min

75/min

None

Check Answer

Question #32: The heart rate in the following ECG/EKG is

75 - 85/min

140 - 150/min

50 - 60/min

100 - 110/min

None

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Question #33: The heart rate in the following ECG/EKG is

75/min

60/min

50/min

40/min

None

Check Answer

Question #34: What is abnormal in this ECG/EKG?

Heart rate P waves P:QRS ratio PR Intervals QRS complexes ST segments QT Intervals Nothing

Check Answer

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