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13 Cards in this Set
- Front
- Back
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ECG approach |
P-waves |
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Normal Sinus rhythm |
Rate: 60-100 Rhythm: Regular QRS: 0.06–0.10 P Wave: Present and proceeds each QRS PR Interval: (0.12-0.20 sec) |
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VF |
Rate: 150-500 Rhythm: Chaotic, Irregular QRS: None P Waves: None PR interval: None |
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VT |
Ventricular Tachycardia (VT) is a broad complex tachycardia originating in the ventricles. Rate: Rapid (over 100bpm) Rhythm: Regular QRS: Wide (over .12, meaning 3+ little squares) P Waves: Not Present PR Interval: Not Present |
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Atrial Fibrillation |
Rate: Varies Rhythm: Irregular QRS: Normal P waves: No p-waves before the QRS on the ECG. This is because there are no coordinated atrial contractions PR Interval: Cannot find as no P waves
The heart rate will be irregular. Irregular impulses that the ventricles are receiving cause the irregular heart rate. |
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Ischemic changes in NSTEMI and Unstable Angina |
ST segment depression (depression over .5mm or half a square that is horizontal or downsloping indicates ischemia if in 2+ consecutive leads. 1mm+, worse prognosis, 2mm+ High probablity and significant mortality ) A= upsloping B=Downsloping C=Horizontal
T wave flattening or inversion (T wave inversion in lead III is a normal variant.) |
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ST segment changes |
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Wave Representations |
P wave |
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ECG Squares |
Each small square is 1 mm in length and represents 0.04 seconds. Each larger square is 5 mm in length and represents 0.2 seconds. |
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Sinus Tachycardia |
Rate: <100 Rythm: Regular QRS: <.12 P Waves: Present, associated with each QRS PR interval: (0.12-0.20 sec) |
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Sinus Bradycardia |
Rate: <60 Rythm: Regular QRS: <.12 P Waves: Present, associated with each QRS PR interval: (0.12-0.20 sec)
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Pacemaker Rates |
SA node 60-100 |
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Normal Intervals |
PR interval 0.12 - 0.2 secs |
