How Do You Get to Carnegie Hall?

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The following EKGs will allow you to try out your new skills. Use the method we outlined in the previous chapter. Don’t overlook anything. Take your time. Ready? Here we go!


EKG 1:


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Answer to EKG 1: Sinus tachycardia. Note also the presence of left axis deviation.


EKG 2:


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Answer to EKG 2: The rhythm is sinus tachycardia. Deep anterior Q waves and less prominent but significant lateral Q waves indicate an anterolateral myocardial infarction.


EKG 3:


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Answer to EKG 3: The QRS complexes are wide and distorted. In leads V5 and V6, the QRS complexes are notched, and there is ST-segment depression and T-wave inversion. This patient has left bundle-branch block. The rabbit ear configurations in the QRS complexes in V5 and V6 are unusual for left bundle-branch block.


EKG 4:


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Answer to EKG 4: The broad, abnormal QRS complexes may immediately attract your attention, but notice the pacer spikes before each one. The spikes are preceded by a P wave (look at leads II, III, aVF, V1, and V2). This pacemaker fires whenever it senses a P wave, ensuring ventricular contraction.


EKG 5:


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Answer to EKG 5: There are deep Q waves in leads III and aVF. This tracing shows an inferior infarct.


EKG 6:


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Answer to EKG 6: The QRS complexes are greatly widened, with beautiful rabbit ears in lead V1. This patient has right bundle-branch block.


EKG 7:


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May 1, 2020 | Posted by in CARDIOLOGY | Comments Off on How Do You Get to Carnegie Hall?
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