Term
|
Definition
Rate = 60-100
Rhythm = regular
P-waves = normal/upright
PR interval = 0.12-0.20 sec and constant
QRS = normal morphology; 1:1 ratio with p-waves |
|
|
Term
|
Definition
Rate = >100
Rhythm = regular
P-waves = normal/upright
PR interval = 0.12-0.20 sec and constant
QRS = normal morphology; 1:1 ratio with p-waves |
|
|
Term
|
Definition
Rate = <60
Rhythm = regular
P-waves = normal/upright
PR interval = 0.12-0.20 sec and constant
QRS = normal morphology; 1:1 ratio with p-waves |
|
|
Term
|
Definition
Rate = Variable
Rhythm = irregular
P-waves = normal/upright
PR interval = 0.12-0.20 sec and constant
QRS = normal morphology; 1:1 ratio with p-waves |
|
|
Term
|
Definition
Rate = variable
Rhythm = irregular
P-waves = normal/upright
PR interval = 0.12-0.20 sec and constant
QRS = normal morphology; 1:1 ratio with p-waves |
|
|
Term
|
Definition
Rate = variable
Rhythm = irregularly irregular
P-waves = no discernible p-waves; fibrillatory waves present
PR interval = n/a
QRS = normal morphology |
|
|
Term
|
Definition
Rate = variable
Rhythm = regular
P-waves = no discernible p-waves; flutter waves noted
PR interval = n/a
QRS = normal morphology |
|
|
Term
| Supraventricular Tachycardia (SVT) |
|
Definition
Rate = >100 (much greater)
Rhythm = regular
P-waves = no discernible p-waves
PR interval = n/a
QRS = normal morphology |
|
|
Term
|
Definition
Rate = usually >100
Rhythm = regular
P-waves = abnormal, sharper p-waves
PR interval = usually <0.12 seconds
QRS = normal morphology |
|
|
Term
| Multifocal Atrial Tachycardia |
|
Definition
Rate = >100
Rhythm = irregular
P-waves = abnormal, sharper p-waves with multiple morphologies
PR interval = varied
QRS = normal morphology |
|
|
Term
| Premature Atrial Contractions |
|
Definition
Rate = varies, based on underlying rhythm
Rhythm = varies, based on underlying rhythm
P-waves = abnormal, sharper p-wave for ectopic beat
PR interval = 0.12-0.20 sec and constant, except for ectopic beat
QRS = normal morphology |
|
|
Term
| Junctional Rhythm, Junctional Escape Rhythm |
|
Definition
Rate = 40-60
Rhythm = regular
P-waves = absent or inverted
PR interval = n/a
QRS = normal morphology |
|
|
Term
|
Definition
Rate = 60-100
Rhythm = regular
P-waves = absent or inverted
PR interval = n/a
QRS = normal morphology |
|
|
Term
|
Definition
Rate = >100
Rhythm = regular
P-waves = absent or inverted
PR interval = n/a
QRS = normal morphology |
|
|
Term
| Premature Junctional Contraction |
|
Definition
Rate = varies, based on underlying rhythm
Rhythm = irregular
P-waves = absent or inverted for ectopic complex
PR interval = n/a
QRS = varies based on underlying rhythm |
|
|
Term
|
Definition
Rate = 15-40
Rhythm = regular
P-waves = absent
PR interval = n/a
QRS = widened, >0.12 seconds |
|
|
Term
|
Definition
Rate = 40-100
Rhythm = regular
P-waves = absent
PR interval = n/a
QRS = widened, >0.12 seconds |
|
|
Term
|
Definition
Rate = >100
Rhythm = regular
P-waves = absent or inverted for ectopic complex
PR interval = n/a
QRS = widened, >0.12 seconds |
|
|
Term
|
Definition
Rate = none
Rhythm = none
P-waves = none
PR interval = n/a
QRS = none |
|
|
Term
| Premature Ventricular Contractions |
|
Definition
Rate = varies, based on underlying rhythm
Rhythm = irregular
P-waves = absent for ectopic complex
PR interval = n/a
QRS = QRS for ectopic complex >0.12 seconds |
|
|
Term
|
Definition
Rate = varies, based on underlying rhythm
Rhythm = irregular
P-waves = absent
PR interval = n/a
QRS = paced beats are >0.12 seconds |
|
|
Term
|
Definition
Rate = none
Rhythm = none
P-waves = none
PR interval = n/a
QRS = none |
|
|
Term
|
Definition
Rate = slow to normal
Rhythm = regular
P-waves = normal
PR interval = >0.20 seconds
QRS = normal |
|
|
Term
| 2nd Degree Type 1 AV Block |
|
Definition
Rate = slow to normal
Rhythm = frequently irregular (patterned)
P-waves = normal
PR interval = varies beat to beat
QRS = normal, more p-waves than QRS |
|
|
Term
| 2nd Degree Type 2 AV Block |
|
Definition
Rate = slow to normal
Rhythm = frequently irregular (patterned)
P-waves = normal
PR interval = normal, when p-wave is with QRS
QRS = normal, more p-waves than QRS |
|
|
Term
|
Definition
Rate = slow
Rhythm = regular
P-waves = normal
PR interval = no correlation between P and QRS
QRS = usually widened, no correlation between p-waves and QRS |
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