p-waves for ecg rules
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| Sinus Rhythm p-wave | 1 Positive; one proceeds each QRS
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| Sinus Bradycardia p-wave | 2 Positive; one proceeds each QRS
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| Sinus Tachycardia p-wave | 3 Positive; one proceeds each QRS
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| Sinus Arrhythmia p-wave | 4 Positive; one proceeds each QRS
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| SA Block p-wave | When present; Positive; one proceeds each QRS
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| Sinus Arrest p-wave | Positive; one proceeds each QRS; When Present.
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| PAC's p-wave | premature; positive in lead 2,
one precedes each QRS, differ
from sinus p-waves, may be
lost in preceding t-wave
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| Wandering Atrial Pacemaker p-wave | Size, shape and direction may change from beat to beat
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| Atrial Flutter p-wave | No identifiable p-waves, "Saw toothed" or flutter waves present
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| Atrial Fibrillation p-wave | no identifiable p-waves fibrilatory waves present, erratic wavy baseline.
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| WPW Wolf-Parkinson-White p-wave | Normal and positive in Lead 2 unless WPW is associated with A-Fib.
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| PJC'S P-Waves | 1 May occur before during or
after QRS, If visible the P-Wave
is inverted in leads II III aVF
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| Junctional Escape Beat P-Waves | 2 May occur before during or
after QRS, If visible the P-Wave
is inverted in leads II III aVF
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| Junctional Escape Rhythm P-Waves | 3 May occur before during or
after QRS, If visible the
P-Wave is inverted in leads
II III aVF
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| Accelerated Junctional Rhythm p-waves | 4 May occur before during or
after QRS, If visible the P-Wave
is inverted in leads II III aVF
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| Junctional Tachycardia p-waves | 5 May occur before during
or after QRS, If visible
the P-Wave is inverted in
leads II III aVF
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| PVC's P-waves | 1 usually absent or, with
retrograde conduction to the
atria, may appear after the
QRS (usually upright in the
ST-segment or T-Wave.
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| Ventricular Escape Beat P-Waves | 2) usually absent or, with retrograde conduction to the atria, may appear after the QRS (usually upright in the ST-segment or T-Wave.
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| Idioventricular Rhythm P-waves | 3) usually absent or, with retrograde conduction to the atria, may appear after the QRS (usually upright in the ST-segment or T-Wave.
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| Accelerated idioventricular Rhythm p-waves | 4) usually absent or, with retrograde conduction to the atria, may appear after the QRS (usually upright in the ST-segment or T-Wave.
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| Monomorphic Ventricular Tachycardia p-waves | May be present or absent, if present the have no set relationship to the QRS complexes appearing between the a rate different than that of the VT
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| Polyporphic Ventricular Tachycardia p-waves | independent or None
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| Ventricular Vibrilation p-waves | Absent
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| Asystole p-waves | None,(some p-waves may be observed in p-wave asystole.
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| First Degree Block p-waves | normal, one p-wave precedes each QRS.
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| Second Degree Type I p-waves | 1 Normal in size and shape; some p-waves not followed by a QRS complex (more p-waves than QRS's
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| Second Degree Type II P-waves | 2 Normal in size and shape; some p-waves not followed by a QRS complex (more p-waves than QRS's
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| Second Degree 2:1 conduction P-Waves | 3 Normal in size and shape; some p-waves not followed by a QRS complex (more p-waves than QRS's
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| Third Degree Block P-Waves Complete Block) | 4 Normal in size and shape; some p-waves not followed by a QRS complex (more p-waves than QRS's
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