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21 Cards in this Set

  • Front
  • Back

Rate: 60-100


Rhythm: Regular


P Wave: Upright and similar


PRI: 0.12-0.20 second and consistent


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS

Rhythm:


Normal Sinus (NSR)

Rate: >100


Rhythm: Regular


P Wave: Upright, similar


PRI: 0.12-0.20 second and consistent


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS

Rhythm:


Sinus Tachycardia


Possible causes: Exercise, hypovolemia, meds, fever, hypoxia, anxiety or fear, acute MI, CHF

Rate: <60


Rhythm: Regular


P Wave: Upright, similar


PRI: 0.12-0.20 second and consistent


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS

Rhythm:


Sinus Bradycardia


Possible causes: Intrinsic sinus node disease, increased parasympathetic tone, drug effect.

Rate: 60-100


Rhythm: Regular or slightly irregular


P Wave: Vary in size shape and direction, at least 3 differnt morphologies must be present


PRI: 0.12-0.20, may vary with P morphology


QRS: <0.12 second, all the same shape


P:QRS Ratio: 1P for every 1QRS

Rhythm:


Wandering Atrial Pacemaker


Possible causes: Increased vagal tone on the SA node, normal in athletes, during sleep, CAD, digoxin toxicity.


Rate: Usually <100 depending on underlying condition


Rhythm: Irregular


P Wave: Early & upright, different from sinus


PRI: 0.12-0.20 second; different from sinus


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS

Rhythm:


Premature Atrial Contractions (PAC)


Possible causes: Normal, excessive use of caffeine, tobacco, or alcohol, CHF, myocardial ischemia or injury, hypokalemia (digoxin toxicity), COPD

Rate: Atrial 250-350, Vent 150 common


Rhythm: Atrial reg, Vent reg or irregular


P Wave: Not identifiable


F wave: Uniform (sawtooth or picket fence)


PRI: Not measurable


QRS: 0.04-0.10 second


P:QRS Ratio: P wave unidentifiable

Rhythm:


Atrial Flutter


Possible causes: Ischemic heart disease, hypoxia, acute MI, dig tox, mitral or tricuspid valve disease, pulmonary embolism

Rate: Atrial 400-700, Vent 160-180


Rhythm: Atrial irregular, vent irregular


P Wave: Not identifiable


F Wave: May be present


PRI: Not measurable


QRS: 0.04-0.10


P:QRS Ratio: Not identifiable

Rhythm:


Atrial Fibrillation


Possible causes: Ischemic heart disease, hypoxia, acute MI, dig tox, mitral or tricuspid valve disease

Rate: Usually 160-220


Rhythm: Regular


P Wave: Differ in shape from sinus, usually difficult to identify because of the rate


PRI: Normal when the P's can be identified


QRS: 0.04-0.10


P:QRS Ratio:

Rhythm:


Paroxysmal Atrial Tachycardia


Possible causes: Normal, excessive use of caffeine tobacco or alcohol, CHF, myocardial ischemia or injury, hypokalemia (dig tox), COPD

Rate: Usually <100, dependant on the underlying rhythm


Rhythm: Irregular


P Wave: Inverted before or after QRS or invisible


PRI: <0.12 second when inverted P is before QRS


QRS: 0>04-0.10 second


P:QRS Ratio: 1P for every QRS if visible

Rhythm:


Premature Junctional Contraction (PJC)


Possible causes: Normal, excessive use of caffeine tobacco or alcohol, CHF, myocardial ischemia or injury, hypokalemia (dig tox), COPD

Rate: 40-60 (61-100 accelerated)


Rhythm: Regular


P Wave: Inverted before or after QRS or invisible


PRI: <0.12 second when inverted P is before QRS


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS if P is visible

Rhythm:


Junctional Escape Rhythm


Possible causes: Healthy athlete at rest, beta blockers calcium channel blockers dig tox, increased parasympathetictone, acute inferior wall MI, rheumatic heart disease, post cardiac surgery, valvular disease, SA node disease, hypoxia

Rate: 101-200


Rhythm: Regular


P Wave: Inverted before or after QRS or invisible


PRI: <0.12 second when inverted P is before QRS


QRS: 0.04-0.10 second


P:QRS Ratio: 1P for every 1QRS if P is visible

Rhythm:


Junctional Tachycardia


Possible causes: Normal, excessive use of caffeine tobacco or alcohol, CHF, myocardial ischemia or injury, hypokalemia (dig tox), COPD

Rate: >150


Rhythm: Absolutely regular


P Wave: Not visible


PRI: Not measurable


QRS: 0.04-0.10 second


P:QRS Ratio: P's are invisible

Rhythm:


Supraventricular Tachycardia (SVT)


Possible causes: Normal, excessive use of caffeine tobacco or alcohol, CHF, myocardial ischemia or injury, hypokalemia (dig tox), COPD

Rate: Dependant on underlying rhythm


Rhythm: Irregular


P Wave: Usually absent


QRS: 0.12 second or greater; bizarre and notched


ST & T: Often opposite in direction to the QRS

Rhythm:


Premature Ventricular Complex (PVC)


Possible causes: Gastric overload, stress, caffeine alcohol or tobacco, heart disease, acid base imbalance, electrolyte imbalance, cyclic antidepressants, hypoxi, acidosis, acute MI


Pattern: every other-Bigeminy, every third-trigeminy

Rate: 100-220


Rhythm: Regular


P Wave: Not present


PRI: Not measurable


QRS: Wide >0.12 second, bizarre


P:QRS Ratio:

Rhythm:


Ventricular Tachycardia


Possible causes: Gastric overload, stress, caffeine alcohol or tobacco, heart disease, acid base imbalance, electrolyte imbalance, cyclic antidepressants, hypoxi, acidosis, acute MI

Rate: Irregular


Rhythm: Not measurable, chaotic undulating waves


P Wave: Not present


PRI: Not measurable


QRS: Not present


P:QRS Ratio:

Rhythm:


Ventricular Fibrillation


Possible causes: Acute MI, untreated V-tach, hypothermia, R-on-T PVC's, electrolyte imbalance, electrical shock

Rate: 20-40 (40-100 accelerated)


Rhythm: Regular


P Wave: Not present


PRI: Not measurable


QRS: >0.12 second, notched and bizarre


ST & T: Opposite direction of QRS

Rhythm:


Idioventricular Rhythm


Possible causes: Myocardial infarction, dig tox,


metabolic imbalances, post resuscitation

Rate: None


Rhythm: None


P Wave: May be present


PRI: None


QRS: None


P:QRS Ratio: None

Rhythm:


Asystole


Possible causes: Extensive myocardial damage, acute respiratory failure, ischemia or infarction, traumatic cardiac arrest, ventricular aneurysm, countershock, hypoxia, hypothermia, hyper/hypokalemia, preexisting acidosis, drug overdose

Rate:


Rhythm:


P Wave:


PRI: Prolonged 0.20 to 0.40


QRS:


P:QRS Ratio: 1P for every 1QRS

Rhythm:


1st Degree AV Block


Rate:


Rhythm: Irregular


P Wave: Present


PRI: Progressively increases until a P appears without a QRS


QRS:


P:QRS Ratio: More P's than QRS's

Rhythm:


2nd Degree AV Block, Type I (Wenckebach)

Rate:


Rhythm: Regular or Irregular


P Wave: Present


PRI: Consistent


QRS:


P:QRS Ratio: More P's than QRS's

Rhythm:


2nd Degree AV Block, Type II (MobitzII)

Rate:


Rhythm: Regular


P Wave: Present upright & round


PRI: Varies greatly


QRS: Normal to wide


P:QRS Ratio: More P's than QRS's, totally disassociated from each other

Rhythm:


3rd Degree AV Block