EKG RHYTHM SkillsSTAT – Flashcards

rates between 60-100/minute. The QRS is most often narrow with upright P waves in Lead II.

rate less than 60 per minute. Expect a narrow QRS with upright P waves in Lead II.

usually has a narrow QRS. The rate is often limited to below 150 / minute.

irregular pattern of this rhythm fluctuates with inspiration (HR increases) and expiration (HR decreases). A narrow QRS and upright P waves in Lead II is expected.

Note that each pause is equal to a multiple of previous P-P intervals.

occurs when the SA node fails to fire. The resulting pause is often NOT equal to the multiple of P-P intervals

Expect narrow QRS and flattenned, notched, peaked or biphasic P waves

ominous rhythm with rates often between 170-230 per minute. The telltale sign is the narrow QRS which defines its origin and its regular, rapid pattern.

chaotic rhythm with recognizable QRS complexes. The chaotic rhythm pattern and the absence of P waves are the hallmarks of this dysrhythmia.

rate of 250-350 / minute. readily identified by the sawtooth baseline.

Note the vertical spike before the P wave.

The significant finding of this rhythm is a prolonged PR interval of more than .20 seconds.

irregular rhythm with one or more QRS complexes are dropped with PR intervals that do not change (fixed PR interval).

with each alternative P wave NOT paired with a QRS complex. The PR interval remains constant. This rhythm requires close monitoring.

Significant characteristics of this rhythm are: 1) lonely P waves - P wave without an accompanied QRS complex 2) chaotic PR intervals.

Characteristics of this Rhythm include: 1) an absent or inverted P wave in lead II 2) a shortened PR interval - less than .12 seconds 3) the complex comes early or premature.

expected pacemaker rate is 40-60 / minute. In lead II, this rhythm presents with inverted or absent P waves.

Key features of this rhythm include a rate between 60-100 / minute, inverted or absent P waves (in lead II) , shortened PR interval, and QRS complexes that are usually narrow.

Key features of this rhythm include a rate over 100 / minute, inverted or absent P waves (in lead II) , shortened PR interval, and QRS complexes that are usually narrow.

rhythm with varying locations of impulse formation resulting in three or more different P waves. With a narrow QRS complex, the absence of a P wave qualifies as one type of P wave.

normal Rhythm with QRS Complex arriving earlier than expected and is usually wide (.12 seconds or more). Note that the T wave often points in an opposite direction from the QRS complex

occurs when the SA and AV nodes are either NOT firing or firing slower. pacemaker rate is 20-40 / minute, a rate that is often not sufficient to sustain an adequate cardiac output.

is a ventricular rhythm occuring at a rate between 41-100 / minute - faster than typical pacemaker rates expected of the ventricles (20-40 / minute) and less than what is considered a tachycardia (>100 / minute). Enhanced automaticity Note that this rhythm is often unstable and can move quickly to either asystole or ventricular tachycardia (VT).

a chaotic rhythm originating in the ventricles, resulting in no cardiac output.

vertical spike before the QRS complex.