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bolus injection to rapidly convert arrhythmia.

If patient is stable, vagal stimulation, or Valsalva’s maneuver, carotid sinus massage.

If patient is unstable prepare for immediate cardioversion.

Use of caffeine, marijuana, or central nervous system stimulants.

Intrinsic abnormality of AV conduction system.

Physical exertion, emotion, stimulants, rheumatic heart diseases.

When a normal P wave is present, it’s called paroxysmal atrial tachycardia when a normal P wave isn’t present, it’s called paroxysmal junctional tachycardia.Sudden onset and termination of arrhythmia.P waves regular but aberrant difficult to differentiate from preceding T wave.Regular atrial and ventricular rhythms.Beta-adrenergic blockers or calcium channel blockers for symptomatic patients.Atropine, epinephrine, quinidine, caffeine, nicotine, and alcohol use.May accompany shock, left-sided heart failure, cardiac tamponade, hyperthyroidism, and anemia.Normal physiologic response to fever, exercise, anxiety, dehydration, or pain.Atrial and ventricular rhythms are regular.Atropine if rate decreases below 40 bpm.Can be seen in digoxin toxicity and inferior wall MI.Normal variation of normal sinus rhythm in athletes, children, and the elderly.Normal P wave preceding each QRS complex.Irregular atrial and ventricular rhythms.It takes time to develop a skill in interpreting EKGs, but once you get the hang of it, you’ll be able to interpret any squiggly line in the EKG paper. Premature Ventricular Contractions (PVC)Įver wonder how nurses and doctors can read ECG papers with ease? How do they differentiate atrial tachycardia from atrial fibrillation, or how even to know what atrial fibrillation or tachycardia is?ĮKG interpretation takes some great skill, a keen eye, and a good theoretical foundation on the different arrhythmias and the concepts around the heart’s conduction and the EKG machine itself.Third Degree AV Block (Complete Heart Block).Second Degree AV Block Mobitz I (Wenckebach).These impulses stimulate and coordinate atrial and ventricular myocardial contractions that provide cardiac output. Arrhythmia or dysrhythmia are disturbances in the normal cardiac rhythm of the heart which occur as a result of alterations within the conduction of electrical impulses. These signals are transmitted to produce a record of cardiac activity. An EKG uses electrodes attached to the skin to detect electric currents moving through the heart. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms.

Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion.