ECG Exercise 3

✏️

Written by Philippe Ayres MD and Eric Tang MD.

Last updated 7/17/24

Is there an occluded coronary artery causing an acute myocardial infraction?

Assume every patient is presenting with chest pain unless told otherwise.

Click on image for full screen view (only on computer).

ECG #1

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology

‣

ST Segments/T waves:

‣

OMI?

‣

Source: ECG Bank 544

ECG #2

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology:

‣

ST Segments/ T waves

‣

OMI?

‣

Outside Source:

ECG #3

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology

‣

ST Segments/ T wave

‣

OMI?

‣

Source: ECG Bank 864

ECG #4 - s/p out of hospital cardiac arrest

Interpretation - s/p cardiac arrest

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology

‣

ST Segments/T waves

‣

OMI?

‣

Source: ECG Bank 633

ECG #5

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/ T wave:

‣

OMI?

Outside source: Dr. Smith’s ECG blog found here

ECG #6

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

P waves

‣

QRS morphology

‣

ST Segments:

‣

OMI?

‣

Source: ECG Bank 607

ECG #7

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology

‣

ST Segments/T wave

‣

OMI?

‣

Outside Source:

ECG #8

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/T waves:

‣

OMI?

‣

Source: ECG Bank 529

ECG #9

Interpretation of initial ECG

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology:

‣

ST Segments/T wave

‣

OMI?

ECG #9 - Repeat ECG 20 minutes later

‣

OMI?

‣

Outside Source

ECG #10

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/T wave

‣

OMI?

‣

Source: ECG Bank 119

ECG #11

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments / T wave:

‣

OMI?

‣

Source: ECG Bank 881

ECG #12

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/T wave -

‣

OMI?

‣

Source: ECG Bank 587

ECG #13

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/T waves

‣

OMI?

ECG #14

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/T waves:

‣

OMI?

‣

Source: ECG Bank ?

ECG #15

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology:

‣

ST Segments/ T waves

‣

OMI?

‣

Source: ECG Bank 367

ECG #16A

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/ T wave:

‣

OMI?

ECG #16B

Repeat ECG done 100 minute later

‣

OMI?

‣

Outside Source

ECG #17

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology

‣

ST Segments/ T wave

‣

OMI?

‣

Source: ECG Bank 352

ECG #18

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology:

‣

ST Segments/ T

‣

OMI?

‣

Source ECG Bank 242

ECG #19

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology:

‣

ST Segments/T waves

‣

OMI?

‣

Source: ECG Bank 184

ECG #20

‣

Prior ECG (click arrow)

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals

‣

QRS morphology:

‣

ST Segments/ TWI

‣

OMI?

‣

Source: ECG Bank 556

ECG #21

Interpretation

‣

Estimate the heart rate (slow, fast or normal), rhythm, and axis to the nearest quadrant.

Anything abnormal?

‣

Intervals:

‣

QRS morphology:

‣

ST Segments / T waves:

‣

OMI?

‣

Source: ECG Bank 944

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ECG Exercise 3 - OMI

Is there an occluded coronary artery causing an acute myocardial infraction?

Assume every patient is presenting with chest pain unless told otherwise.

ECG #1

ECG #2

ECG #3

ECG #4 - s/p out of hospital cardiac arrest

ECG #5

ECG #6

ECG #7

ECG #8

ECG #9

ECG #9 - Repeat ECG 20 minutes later

ECG #10

ECG #11

ECG #12

ECG #13

ECG #14

ECG #15

ECG #16A

ECG #16B

ECG #17

ECG #18

ECG #19

ECG #20

ECG #21