Junctional Rhythms

The nurse is interpreting an ECG and suspects a junctional rhythm. Which ECG findings support this suspicion? (Select all that apply)

• P waves that are inverted or occur after the QRS

• QRS duration greater than 0.12 seconds

• Regular rhythm

• No visible P waves

A patient is experiencing a junctional escape rhythm. What nursing interventions are appropriate? (Select all that apply)

• Assess for signs of decreased cardiac output

• Notify the healthcare provider if symptomatic

• Begin defibrillation

• Administer atropine if bradycardic and symptomatic

Which of the following heart rhythms is an example of a junctional rhythm

• A

• B

• C

• D

What is the primary pacemaker site in a junctional rhythm?

• Sinoatrial (SA) node

• Bundle of His

• Purkinje fibers

• Atrioventricular (AV) node or junction

Which of the following clinical situations might result in a junctional rhythm?

• Hyperthyroidism

• Anxiety

• Digitalis toxicity

• Fever

In a junctional rhythm, the P wave is typically

• Absent or inverted

• Peaked and tall

• Always upright before the QRS

• Wide and irregular