Dysrhythmia aka arrhythmia - Correct answer abnormal cardiac rhythms

which can cause disturbances of rate, rhythm, or both rate and rhythm

how are dysrhythmias identified? - Correct answer Electrographic Waveform Analysis (ECG)

what controls the rate and rhythm of the

explain the heart's electrical system - Correct answer Each electrical signal (impulse) begins in a group of cells called the sinus node or sinoatrial (SA) node. The SA node is located in the right atrium. In a healthy adult heart at rest, the SA node sends an electrical signal to begin a new heartbeat 60 to 100 times a minute. (This rate may be slower in very fit athletes.) DYSKATHMA

From the SA node, the electrical signal travels through the pump blood into the ventricles. right and left atria. It causes the atria to contract and

The electrical signal then moves down to a group of cells called the atrioventricular (AV) node, located between the atria and the ventricles. Here, the signal slows down slightly, allowing the ventricles time to finish filling with blood. RELIAS

The electrical signal then leaves the AV node and travels to the ventricles. It causes the ventricles to contract and

pump blood to the lungs and the rest of the body. The ventricles then relax, and the heartbeat process starts all over