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ECG Rules:)
| Question | Answer |
|---|---|
| Sinus Rhythm Rate | 60-100 BPM |
| Sinus Rhythm Rhythm | Regular |
| Sinus Rhythm Pwaves | (+),One For Every QRS |
| Sinus Rhythm PRI | 0.12-0.20 sec |
| Sinus Rhythm QRS | 0.10 sec or less, unless abnormally conducted |
| Sinus Bradycardia Rate | Less Than 60 BPM |
| Sinus Bradycardia Rhythm | Regular |
| Sinus Bradycardia Pwaves | (+),One For Every QRS |
| Sinus Bradycardia PRI | 0.12-0.20 sec |
| Sinus Bradycardia QRS | 0.10 sec or less, unless abnormally conducted |
| Sinus Tachycardia Rate | 101-180 BPM |
| Sinus Tachycardia Rhythm | Regular |
| Sinus Tachycardia Pwaves | (+),One For Every QRS |
| Sinus Tachycardia PRI | 0.12-0.20 sec |
| Sinus Tachycardia QRS | 0.10 sec or less, unless abnormally conducted |
| Sinus Arrhythmia Rate | Usually 60-100 BPM |
| Sinus Arrhythmia Rhythm | Irregular, Typically Phasic with Respirations |
| Sinus Arrhythmia Pwaves | (+),One For Every QRS |
| Sinus Arrhythmia PRI | 0.12-0.20 sec |
| Sinus Arrhythmia QRS | 0.10 sec or less, unless abnormally conducted |
| SA Block Rate | Varies |
| SA Block Rhythm | Regular Except For The Event; Drops A P-P Interval |
| SA Block Pwaves | When Present,(+),One For Every QRS |
| SA Block PRI | When Present,0.12-0.20 sec |
| SA Block QRS | 0.10 sec or less, unless abnormally Conducted |
| Sinus Arrest Rate | Varies |
| Sinus Arrest Rhythm | Regular Except For The Event; Pause Of Undetermined Length |
| Sinus Arrest Pwaves | When Present,(+),One For Every QRS |
| Sinus Arrest PRI | When Present, 0.12-0.20 sec |
| Sinus Arrest QRS | 0.10 sec or less, unless abnormally Conducted |
| PACs Rate | Usually Within Normal Range, But Depends On Underlying Rhythm |
| PACs Rhythm | Regular With Premature Beats |
| PACs Pwaves | Premature,(+), One For Every QRS, Differ Than Sinus Pwaves, Maybe Lost In Preceding Twave |
| PACs PRI | Maybe Normal Or Prolonged |
| PACs QRS | 0.10 sec or Less Unless Abnormally Conducted |
| Wandering Atrial Pacemaker Rate | Usually 60-100 BPM; If Rate Greater Than 100 BPM, Rhythm Is Called Multifocal Atrial Tachycardia |
| Wandering Atrial Pacemaker Rhythm | Maybe Irregular As Pacemaker Site Shifts From SA Node To Ectopic Atrial Locations And AV Junction |
| Wandering Atrial Pacemaker Pwaves | Size, Shape, And Direction mau Change From Beat To Beat |
| Wandering Atrial Pacemaker PRI | Varies |
| Wandering Atrial Pacemaker QRS | 0.10 sec Or Less Unless Abnormally Conducted |
| Atrial Tachycardia Rate | 100-250 BPM |
| Atrial Tachycardia Rhythm | Regular |
| Atrial Tachycardia Pwaves | Atrial Pwaves Differ From Sinus Pwaves; Isoelectric Baseline Usually Present Between Pwaves |
| Atrial Tachycardia PRI | Maybe Shorter Or Longer Than Normal |
| Atrial Tachycardia QRS | 0.10 Sec Or Less Unless Abnormally Conducted |
| AVNRT Rate | 150-250 BPM |
| AVNRT Rhythm | Ventricular Rhythm Is Usually Very Regular |
| AVNRT Pwaves | Pwaves Often Hidden In QRS Complex |
| AVNRT PRI | If Pwaves Are Seen, The PRI Will Usually 0.12-0.20sec |
| AVNRT QRS | 0.10 sec or Less Unless Abnormally Conducted |
| Atria Flutter Rate | Atrial Rate 250-450BPM, Typically 300BPM, Ventricular Rate Variable-Determined By AV Blockade |
| Atria Flutter Rhythm | Atrial Regular, Ventricular Regular or irregular |
| Atria Flutter Pwaves | No Identifiable P Waves; Saw-toothed "flutter" Waves Present |
| Atria Flutter PRI | Not Measurable |
| Atria Flutter QRS | 0.10 sec or less unless abnormally Conducted |
| AFib Rate | Atrial Rate 400-600 BPM; Ventricular Rate Variable |
| AFib Rhythm | Ventricular Rhythm Usually Irregularly Irregular |
| AFib Pwaves | No Identifiable Pwaves; Fibrillatory waves present; erratic, Wavy Baseline |
| AFib PRI | Not measurable |
| AFib QRS | 0.10 sec or less unless abnormally conducted |
| WPW Rate | 60-100 BPM, if the underlying rhythm is sinus in origin |
| WPW Rhythm | Regular, unless associated with Atrial Fibrillation |
| WPW Pwaves | Normal and (+) in lead II unless WPW is associated with AFib |
| WPW PRI | If Pwaves are seen, Less than 0.12sec |
| WPW QRS | Usually greather than 0.12 sec. Delta wave may be seen in one or more leads |
| PJCs Rate | usually within normal range, but depends on underlying rhythm |
| PJCs Rhythm | Regular with premature beats |
| PJCs Pwaves | may occur before, during, or after QRS, if visiable, the Pwave is Inverted in leads II, III, and aVF |
| PJCS PRI | If Pwave occurs before the QRS, the PRI will usually be 0.12 sec or less; if no p wave occurs before The QRS, there will be no PRI |
| PJCs QRS | Usually 0.10sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists |
| Junctional Escape Beat Rate | usually within normal range, but depends on underlying rhythm |
| Junctional Escape Beat Rhythm | Regular with Late Beats |
| Junctional Escape Beat Pwaves | may occur before, during, or after QRS, if visiable, the Pwave is Inverted in leads II, III, and aVF |
| Junctional Escape Beat PRI | If Pwave occurs before the QRS, the PRI will usually be 0.12 sec or less; if no p wave occurs before The QRS, there will be no PRI |
| Junctional Escape Beat QRS | Usually 0.10sec or less unless it is aberrantly conducted or an Intraventricular conduction delay exists |
| Junctional Escape Rhythm Rate | 40-60 BPM |
| Junctional Escape Rhythm Rhythm | Regular |
| Junctional Escape Rhythm Pwaves | may occur before, during, or after QRS, if visiable, the Pwave is Inverted in leads II, III, and aVF |
| Junctional Escape Rhythm PRI | If Pwave occurs before the QRS, the PRI will usually be 0.12 sec or less; if no p wave occurs before The QRS, there will be no PRI |
| Junctional Escape Rhythm QRS | Usually 0.10 sec or less unless it is aberrantly conducted or an Intraventricular conduction delay exists |
| Accelerated Junctional Rhythm Rate | 61-100 BPM |
| Accelerated Junctional Rhythm Rhythm | Regular |
| Accelerated Junctional Rhythm Pwaves | may occur before, during, or after QRS, if visiable, the Pwave is Inverted in leads II, III, and aVF |
| Accelerated Junctional Rhythm PRI | If Pwave occurs before the QRS, the PRI will usually be 0.12 sec or less; if no p wave occurs before The QRS, there will be no PRI |
| Accelerated Junctional Rhythm QRS | Usually 0.10sec or less unless it is aberrantly conducted or an Intraventricular conduction delay exists |
| Junctional Tachycardia Rate | 101-180 BPM |
| Junctional Tachycardia Rhythm | Regular |
| Junctional Tachycardia Pwaves | may occur before, during, or after QRS, if visiable, the Pwave is Inverted in leads II, III, and aVF |
| Junctional Tachycardia PRI | If Pwave occurs before the QRS, the PRI will usually be 0.12 sec or less; if no p wave occurs before The QRS, there will be no PRI |
| Junctional Tachycardia QRS | Usually 0.10sec or less unless it is aberrantly conducted or an Intraventricular conduction delay exists |
| PVCs Rate= | Usually within normal range, but depends on underlying rhythm |
| PVCs Rhythms= | regular with early beats |
| PVCs Pwaves= | usually absent or, with retrograde conduction to the atria, may appears after the QRS(usually upright in ST-segment or Twaves) |
| PVCs PRI= | none |
| PVCs QRS= | usually 0.12 sec or greater |
| Ventricular Escape Beat Rate | Usually within normal range, but depends on underlying rhythm |
| Ventricular Escape Beat Rhythm | usually 0.12 sec or greater |
| Ventricular Escape Beat Pwaves | usually absent or, with retrograde conduction to the atria, may appears after the QRS(usually upright in ST-segment or Twaves) |
| Ventricular Escape Beat PRI | none |
| Ventricular Escape Beat QRS | usually 0.12 sec or greater |
| IVR Rate | 20-40 BPM |
| IVR Rhythm | Essentially Regular |
| IVR Pwaves | usually absent or, with retrograde conduction to the atria, may appears after the QRS(usually upright in ST-segment or Twaves) |
| IVR PRI | none |
| IVR QRS | usually 0.12 sec or greater |
| AVR Rate | 41-100 BPM (Some Consider the rate 41-120 BPM) |
| AVR Rhythm | Essentially Regular |
| AVR Pwaves | usually absent or, with retrograde conduction to the atria, may appears after the QRS(usually upright in ST-segment or Twaves) |
| AVR PRI | none |
| AVR QRS | usually 0.12 sec or greater |
| Monomorphic VT Rate | 101-250 BPM (some Consider 121-250 BPM) |
| Monomorphic VT Rhythm | Usually Regular |
| Monomorphic VT Pwaves | May be present or absent. If present, they have no set relationship to the QRS appearing between the QRSs at a rate different from that of the VT |
| Monomorphic VT PRI | None |
| Monomorphic VT QRS | 0.12 sec or greater |
| Polymorphic VT Rate | 150-300 BPM |
| Polymorphic VT Rhythm | Irregular |
| Polymorphic VT Pwaves | Inderpendent or none |
| Polymorphic VT PRI | none |
| Polymorphic VT QRS | 0.12 sec or greater |
| VFib Rate | not discernible |
| VFib Rhythm | chaotic |
| VFib Pwaves | absent |
| VFib PRI | none |
| VFib QRS | not discernible |
| Asystole Rate | none |
| Asystole Rhythm | none |
| Asystole Pwaves | atrial activiy may be observed ('Pwaves asystole") |
| Asystole PRI | none |
| Asystole QRS | absent |
| 1sr-Degree AVB Rate | usually within normal range, but depends on underlying rhythm |
| 1st-Degree AVB Rhythm | atrial regular, ventricular regular |
| 1st-Degree AVB Pwaves | normal, one for every QRS |
| 1st-Degree AVB PRI | Greater than 0.20 sec and constant |
| 1st-Degree AVB QRS | usually 0.10 sec or less unless an intraventricular conduction delay exists |
| 2nd-Degree AVB Type I Rate | atrial rate greater than ventricular rate; both often within normal limits |
| 2nd-Degree AVB Type I Rhythm | atrial regular, ventricular irregular |
| 2nd-Degree AVB Type I Pwaves | normal in size and shape, some pwaves are not followed by a QRS (more Pwaves Than QRS) |
| 2nd-Degree AVB Type I PRI | lengthens with each cycle until a pwave appears without a QRS |
| 2nd-Degree AVB Type I QRS | usually 0.10 sec or less unless an intraventricular conduction delay exists |
| 2nd-Degree AVB Type II Rate | atrial rate greater than ventricular rate; ventricular rate often slow |
| 2nd-Degree AVB Type II Rhythm | atrial regular, ventricular often slow |
| 2nd-Degree AVB Type II Pwaves | normal in size and shape, some pwaves are not followed by a QRS (more Pwaves Than QRS) |
| 2nd-Degree AVB Type II PRI | normal or slightly prolonged but constand for conducted beats |
| 2nd-Degree AVB Type II QRS | usually greater than 0.10 sec, periodically absent after pwaves |
| 2nd-Degree AVB 2:1 Rate | atial rate greater than ventricular |
| 2nd-Degree AVB 2:1 Rhythm | atrial regular, ventricular regular |
| 2nd-Degree AVB 2:1 Pwaves | normal in size and shape, some pwaves are not followed by a QRS (more Pwaves Than QRS) |
| 2nd-Degree AVB 2:1 PRI | normal in size and shape, every other pwave is not followed by a QRS (More Pwaves Than QRS) |
| 2nd-Degree AVB 2:1 QRS | constant |
| 3rd-Degree AVB Rate | atrial rate greater than ventricular rate; ventricular rate determined by origin of escape thythm |
| 3rd-Degree AVB Rhythm | atrial regular, ventricular regular |
| 3rd-Degree AVB Pwaves | normal in size and shape, some pwaves are not followed by a QRS (more Pwaves Than QRS) |
| 3rd-Degree AVB PRI | none- the atria and ventricular beat independently of eavh other. therefor no true PRI |
| 3rd-Degree AVB QRS | Narrow or wide depending on the location of escape pacemaker and condition of intraventricular conduction system |