12-Lead EKG Chapter 5 Worksheet



Match the following using the work bank.____1. Leads V 3 and V 4____2. Where the end of the QRS complex makes a sudden sharp change in direction____3. Significant EKG wave changes seen in 2 anatomically contiguous leads (see the same area of the heart.____4. ST segment elevation curved upward; “frowny face.”____5. Wave form that now appears to hold water; duration is longer than 0.12 seconds____6. A term that “sees” the same area of the heart____7. Leads I, aVF, V5 and V6____8. “Tombstone” T wave; more than 50% of the preceding R wave____9. Leads II, III, and aVF____10. Leads V1 and V2Word BankAnterior Wall LeadsF. Inferior LeadsContiguous LeadsG. J PointCoved ST SegmentH. Lateral LeadsHyperacute PhaseI. Pathologic Q WaveIndicative ChangesJ. Septal LeadsSelect the best answer.The development of abnormal Q waves provides evidence that tissue death has occurred.TrueFalseT wave inversion suggestsDelayed ventricular depolarizationPresence of injuryPresence of ischemiaA normal EKG does not rule out an AMI, particularly in the early hours of a coronary artery occlusion.TrueFalseChanges seen in the wall of the heart opposite the location of the infarction isContiguous lead changesReciprocal changesNSTEMIWith an anterior wall MI ST segment elevation in leads ________ occurs.V3 & V4V1 & V2V1- V6With a lateral wall MI, ST segment elevation in leads ______ occurs.I, aVL, aVFII, III, aVFI , aVL, V5 & V6With an inferior wall MI, ST segment elevation in leads _____ occursI, aVLV1- V6II, III, aVFWith posterior wall MI, ST segment depression in leads _____ occurs.V1 & V2V1 – V6aVL and V1Reciprocal changes for an inferior MI are seen in leadsI, aVLV1 & V2II & IIIWith an anterior wall MI, the affected coronary artery is theLeft circumflexLeft anterior descending/diagonal branchLAD/septal branchWith an inferior wall MI, the affected coronary artery is theLADRCA/posterior descending branchLAD/diagonal branchWith a lateral wall MI, the affected coronary artery is theLCARCAAbout 80% of patients with inferior infarction have some involvement of the right ventricleTrueFalseTo “look” directly at the right ventricle, chest leads are identical to placement of the standard chest leads except on the right side of the chestTrueFalseThe clinical triad of right ventricle infarction (RVI) includesHypotension, JVD, and clear lung soundsHypertensionClear lung sounds and JVDST segment depression is seen with reciprocal changes as well asDigitalis“ischemia at a distance”MovementA & BOne exception to the “classic” pattern of indicative change isMitral stenosisApical infarctionCoughing and movementThe presence of extensive collateral circulation may cause apical infarctions only.TrueFalseWhen EKG changes suggest an inferior infarction (ST segment elevation) in leads II, III or aVF a _____ should be suspected.RVILVIInferolateral MIA lateral wall MI often occurs as an extension of an anterior or inferior wall MI.TrueFalse ................
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