EKG Strips
1. Atrial Flutter -has a "saw tooth or picket fence" atrial
pattern (no P waves, F-waves in stead that may be in a ratio)
between the QRS complexes.
2. Atrial Fibrillation-Has "chaotic" atrial electrical activity
(no P waves, f-waves instead) with irregular R-R inter- vals.
3. PJCs cause the rhythm to be irregular. The P wave is
inverted if it can be seen. It may occur before, during or
after the QRS. The P wave will not be seen due to its low
voltage.
4. Junctional Rhythm may have an inverted or absent P wave.
The P wave may occur before, during or after the QRS
complex. The rate for this rhythm is 40-60 bpm.
5. Accelerated Junctional Rhythm may have an inverted or
absent P wave. The P wave may occur before, during or after
the QRS complex. The rate for this rhythm is 60-100 bpm.
6. Junctional Tachycardia Rhythm may have an inverted or
absent P wave. The P wave may occur before, during or after
the QRS complex. The rate for this rhythm is 100-180 bpm
7. Supraventricular Tachycardia presents with a "nor- mal-
narrow" appearing QRS complex and a rate of greater
than 150 bpm. Remember for heart rates ap- proaching 150
or higher, it will be very likely that the P wave will be buried.
Be prepared to increase the paper speed for this rhythm.
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, 8. First Degree AV Block, the PR interval is constant and
measures greater than 0.20 second.
9. Second Degree AV Blocok Mobitz I (Wenkebach) has a
cyclical prolonging PR interval until the QRS is dropped.
Then the cycle begins again. ***Remember the clue
"lengthen, lengthen drop Wenkebach.
10. Second Degree (AV) Block has a constant PR interval with
blocked QRS complexes
11. Second Degree (AV) Block has a constant PR interval
with blocked QRS complex (2)
12. Third Degree (Complete) Heart Block, the P-P and R-R
intervals are regular (constant) but firing at different rates.
13. T wave inversion, or negatively deflected T wave in-
dicates ischemia and is usually seen with ST segment
elevation.
14. T wave inversion with ST elevation on a 12-lead ECG is
considered myocardial injury, acute injury pattern, or acute
15. Physiologic Q wave is normal and the width measures less
than 0.04 second and the depth measures less than one-
third of the height of the R wave in that lead.
16. Pathologic Q wave indicates tissue death (infarction) and
is defined as measuring 0.04 second and/or
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1. Atrial Flutter -has a "saw tooth or picket fence" atrial
pattern (no P waves, F-waves in stead that may be in a ratio)
between the QRS complexes.
2. Atrial Fibrillation-Has "chaotic" atrial electrical activity
(no P waves, f-waves instead) with irregular R-R inter- vals.
3. PJCs cause the rhythm to be irregular. The P wave is
inverted if it can be seen. It may occur before, during or
after the QRS. The P wave will not be seen due to its low
voltage.
4. Junctional Rhythm may have an inverted or absent P wave.
The P wave may occur before, during or after the QRS
complex. The rate for this rhythm is 40-60 bpm.
5. Accelerated Junctional Rhythm may have an inverted or
absent P wave. The P wave may occur before, during or after
the QRS complex. The rate for this rhythm is 60-100 bpm.
6. Junctional Tachycardia Rhythm may have an inverted or
absent P wave. The P wave may occur before, during or after
the QRS complex. The rate for this rhythm is 100-180 bpm
7. Supraventricular Tachycardia presents with a "nor- mal-
narrow" appearing QRS complex and a rate of greater
than 150 bpm. Remember for heart rates ap- proaching 150
or higher, it will be very likely that the P wave will be buried.
Be prepared to increase the paper speed for this rhythm.
1/5
, 8. First Degree AV Block, the PR interval is constant and
measures greater than 0.20 second.
9. Second Degree AV Blocok Mobitz I (Wenkebach) has a
cyclical prolonging PR interval until the QRS is dropped.
Then the cycle begins again. ***Remember the clue
"lengthen, lengthen drop Wenkebach.
10. Second Degree (AV) Block has a constant PR interval with
blocked QRS complexes
11. Second Degree (AV) Block has a constant PR interval
with blocked QRS complex (2)
12. Third Degree (Complete) Heart Block, the P-P and R-R
intervals are regular (constant) but firing at different rates.
13. T wave inversion, or negatively deflected T wave in-
dicates ischemia and is usually seen with ST segment
elevation.
14. T wave inversion with ST elevation on a 12-lead ECG is
considered myocardial injury, acute injury pattern, or acute
15. Physiologic Q wave is normal and the width measures less
than 0.04 second and the depth measures less than one-
third of the height of the R wave in that lead.
16. Pathologic Q wave indicates tissue death (infarction) and
is defined as measuring 0.04 second and/or
2/5
