When Joe arrived at hospital he was immediately connected to an ECG machine and

Question

When Joe arrived at hospital he was immediately connected to an ECG machine and blood samples were taken. Based on Joe's ECG, the doctor told Nancy that he had indeed suffered a heart attack that had caused damage to his lefi ventricle Joe's ECG trace NORMAL Twave Pwave Twave ST elevation 9. Looking at the figure above, name one abnormality, other than ST elevation that you might see on the ECG of a person who has just had a heart attack that damaged their left ventricle. (0.5 pts) ater his blood tests revealed that there was cardiac troponin in his blood, confirming the doctor's

Explanation / Answer

The Q wave represents the normal left-to-right depolarisation of the interventricular septum. Q wave is abnormal when it is > 40 ms (1 mm) wide , > 2 mm deep.

Joe's ECG shows Wider and Deper Q wave suggestive of transmural myocardial infarction.

ECG also shows large QRS complex which is suggestive of Left ventricular hypertrophy.

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