Functions/
Components
Components
What node sends the electrical impulses that start your heartbeat?
Sinoatrial node
A patient has a slow heart rate, fatigue, and dizziness. Which conduction problem does this most likely indicate?
Sinus Bradycardia
Signals cannot travel from the Atria to the ventricles?
Heart Block
What test is usually used to detect conduction problems?
ECG/EKG
What device is implanted to control heart rhythm?
Pacemaker
Which node delays electrical signal?
Atrioventricular node
A patient reports sudden episodes of rapid heartbeat, chest tightness, and shortness of breath. What conduction issue could this be?
Supraventricular Tachycardia
Irregular heart rhythm.
Arrhythmia
P wave stands for what?
Atrial Depolarization
What delivers an electric shock to the heart to restore normal rhythm?
Defibrillation
What carries impulses from the AV node to the ventricles?
Bundle of His
A patient experiences fainting, extreme fatigue, and a very slow or irregular heartbeat. What condition does this suggest?
Heart Block
The Purkinje Fibers being blocked on one side of the heart.
Bundle branch block
Q-wave represents?
The first negative deflection.
Medication that slows fast heart rhythms?
Beta Blockers
What sends electrical signals quickly to the hearts right and left ventricles?
Purkinje Fibers
A patient becomes unresponsive with no effective pulse and is found in a chaotic, quivering rhythm. What is the likely conduction disorder?
Ventricular Fibrillation
The ventricles contracting and releasing to slowly.
Long QT syndrome
R wave represents?
The first positive deflection
What medication helps prevent blood clots?
Anticoagulants
What is the conductions pathway in order?
SA node, Atria, AV node, Bundle of His, Bundle Branches, Purkinje Fibers
A patient has palpitations, irregular heartbeat, lightheadedness, and shortness of breath. What conduction disorder fits these symptoms?
Atrial Fibrillation
A malfunction in the hearts rhythm causing the heart to stop.
Cardiac Arrest
S wave represents?
A negative deflection following the R wave
What procedure destroys the abnormal heart tissue?
Catheter Ablation