3 Dysrhythmia Recognition Free Online FlashCards

What sequence helps organize rhythm-strip interpretation?

Assess ventricular rate and regularity, identify P waves, compare P waves with QRS complexes, and measure PR and QRS intervals.

What should be assessed in the patient after reviewing the rhythm?

Check responsiveness, pulse, blood pressure, symptoms, and perfusion.

What ECG pattern supports sinus bradycardia?

Sinus bradycardia has a regular rhythm with an upright P wave before each narrow QRS and a consistent PR interval.

What defines first-degree AV block?

First-degree AV block has a prolonged PR interval, greater than $0.20$ seconds, that remains constant, with a QRS after every P wave.

What is the characteristic conduction pattern of Mobitz I?

In Mobitz I, the PR interval progressively lengthens until a P wave is not followed by a QRS; the sequence then repeats.

What ECG finding indicates complete heart block?

Third-degree AV block is indicated by independent atrial and ventricular activity, with no consistent PR relationship.

What ECG pattern is characteristic of atrial fibrillation?

Atrial fibrillation typically produces an irregularly irregular ventricular rhythm without distinct, consistently occurring P waves.

What ECG feature suggests atrial flutter with a conduction ratio?

Atrial flutter often shows repetitive sawtooth-like atrial waves; several waves may occur for each QRS in a conduction ratio.

What rhythm category fits sudden-onset, regular narrow-complex tachycardia?

A sudden-onset, regular tachycardia with narrow QRS complexes is consistent with a regular narrow-complex tachycardia, such as an SVT pattern.

What is the appropriate response to wide-complex tachycardia with a pulse and severe instability?

Activate emergency assistance and prepare for prompt synchronized cardioversion under the applicable protocol.

What should be done if a patient with wide-complex tachycardia loses a pulse?

If the patient loses a pulse, activate the cardiac-arrest response and follow the appropriate resuscitation algorithm.

Why isn’t a monitor pattern alone enough to set urgency?

A monitor pattern alone does not determine how urgently to intervene; confirm the rhythm and respond to the patient’s condition.