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ECG P-waves

p-waves for ecg rules

QuestionAnswer
Sinus Rhythm p-wave 1 Positive; one proceeds each QRS
Sinus Bradycardia p-wave 2 Positive; one proceeds each QRS
Sinus Tachycardia p-wave 3 Positive; one proceeds each QRS
Sinus Arrhythmia p-wave 4 Positive; one proceeds each QRS
SA Block p-wave When present; Positive; one proceeds each QRS
Sinus Arrest p-wave Positive; one proceeds each QRS; When Present.
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
Wandering Atrial Pacemaker p-wave Size, shape and direction may change from beat to beat
Atrial Flutter p-wave No identifiable p-waves, "Saw toothed" or flutter waves present
Atrial Fibrillation p-wave no identifiable p-waves fibrilatory waves present, erratic wavy baseline.
WPW Wolf-Parkinson-White p-wave Normal and positive in Lead 2 unless WPW is associated with A-Fib.
PJC'S P-Waves 1 May occur before during or after QRS, If visible the P-Wave is inverted in leads II III aVF
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
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
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
Junctional Tachycardia p-waves 5 May occur before during or after QRS, If visible the P-Wave is inverted in leads II III aVF
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.
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.
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.
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.
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
Polyporphic Ventricular Tachycardia p-waves independent or None
Ventricular Vibrilation p-waves Absent
Asystole p-waves None,(some p-waves may be observed in p-wave asystole.
First Degree Block p-waves normal, one p-wave precedes each QRS.
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
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
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
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
Created by: spreadthewordmin
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