Understanding Junctional Tachycardia

What is the primary pacemaker of the heart in junctional tachycardia?

• Bundle of His

• SA node

• AV node

• Purkinje fibers

Which node is known as the 'gatekeeper' of the heart's electrical conduction system?

• SA node

• Purkinje fibers

• Bundle of His

• AV node

What does the P wave represent in a normal ECG?

• Atrial repolarization

• Ventricular repolarization

• Atrial depolarization

• Ventricular depolarization

In junctional tachycardia, where might the P wave appear on an ECG?

• Only within the QRS complex

• Before, within, or after the QRS complex

• Always after the QRS complex

• Always before the QRS complex

What is a hallmark finding of the P wave in junctional tachycardia?

• It is always upright

• It is always inverted

• It is always absent

• It can be inverted or hidden

Which of the following is a common cause of junctional tachycardia in adults?

• Hypertension

• Myocardial infarction

• Congenital heart defects

• Diabetes

What symptom might indicate low cardiac output in a patient with junctional tachycardia?

• High blood pressure

• Shortness of breath

• Increased appetite

• Weight gain

Which medication is NOT typically used to slow the heart rate in junctional tachycardia?

• Antibiotics

• Antiarrhythmics

• Calcium channel blockers

• Beta blockers

What is the purpose of cardiac ablation in treating junctional tachycardia?

• To increase heart rate

• To replace the pacemaker

• To enhance electrical conduction

• To destroy tissue pathways causing the rhythm

What is the role of a nurse in managing a patient with junctional tachycardia?

• Administering medications to increase heart rate

• Monitoring for signs of low cardiac output

• Performing surgery

• Diagnosing the condition