12-Lead ECG Word Scramble
O S I O T N S I P
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| Question | Answer |
| True or False? A 12-Lead ECG can be performed by only using a 3-Lead monitor? | True, by moving the LL(red) lead to all the V-Lead (precordial) positions and switching to Lead III, you can capture the same views of the myocardium as a 12-Lead ECG! |
| The heart consists of these coronary vessels? | The RCA(right coronary artery) and the LCA(left coronary artery), which then branches into the LAD(left anterior descending artery) and the LCX(left circumflex). |
| To perform a rapid Right sided 12-Lead, what precordial lead must be moved to the same location on the Right side? | When moved to the opposite side V4 now becomes V4R, and a rapid Right sided 12-Lead ECG may be performed. |
| A Right axis deviation? | +90 to 180 degrees. (down, up, up) |
| A pathological "Q" wave, must be greater than 25% of overall QRS depth, is usually indicative of what? | A previous MI. |
| Which leads are known as the axial or limb leads? | LA(black), LL(red), RA(white), and RL(green). Salt(RA), pepper(LA), ketchup(LL), and relish(RL). |
| The Septal leads consist of which leads? | Leads V1 and V2. |
| The Anterior leads consist of which leads? | Leads V3 and V4. |
| A normal axis? | 0 to 90 degrees. (all up) |
| A physiologic Left axis deviation? | 0 to -30 degrees. (up, up, down) |
| What type of medical condition should be suspected if you notice ST-segment elevation in all leads? | Pericarditis. |
| The Inferior leads consist of which leads? | Leads II, III, and AvF. |
| ST-segment elevation of at least 2mm in any anatomically contiguous leads suggests what? | Injury or infarct. |
| The Lateral leads consist of which leads? | Leads I, AvL, V5, and V6. |
| A pathological Left axis deviation? | -30 to -90 degrees. (up, down, down) |
| Reciprocal ST-segment changes can be noted where? | In the leads away from the infarct. |
| ST-segment depression or "T" wave inversion may be indicative of what? | Ischemia. |
| Which leads are known as the precordial or chest leads? | V1, V2, V3, V4, V5, and V6. |
| An extreme Right axis deviation? | -90 to 180 degrees. (all down) |
| If axis deviates away from the injured myocardium, then a lateral infarct would most likely yield a what type axis deviation? | Right axis deviation. |
| For a bundle branch block (BBB) to be present, the QRS duration must be greater than what? | Any QRS duration greater than 120mm constitutes a BBB. |
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