Heart Flashcards
EKG/ECG
(ElektroKardiogram-German) Echo Cardiogram- monitors heart electrical activity
Arrhythmia
Improper beating of the heart, whether irregular, too fast, or too slow.
Cardiac arrhythmia occurs when electrical impulses in the heart don’t work properly.
Tachycardia
A rapid heartbeat that may be regular or irregular, but is out of proportion to age and level of exertion or activity.
-Coffee withdrawal is an example ☕️
Atrial fibrillation
Disorganized electrical signals plays a part in increased/abnormal heart rate
P of PQR measures what? Symptoms?
-shows when top part of heart (atria) is squeezing to push blood into lower part. First thing that happens in a heartbeat.
-Atrial enlargement, fibrillation, arrhythmias, and tachycardia
QRS what does it do?
-shows when bottom part of heart (ventricles) is squeezing to pump blood out to your body.
-Q Wave: A small dip before the main squeeze. Downward depolarization
• R Wave: The big spike, showing the main squeeze of your heart. Ventricular depolarization
• S Wave: A small dip right after the big spike, showing the end of the squeeze. final depolarization of the ventricles.
- ventricular hypertrophy (thickened ventricular walls), bundle branch blocks (delays in electrical conduction), or heart attacks (myocardial infarction).
R wave function?
prominent upward spike in the QRS complex and represents the rapid depolarization of the ventricles, particularly the left ventricle, which is responsible for pumping oxygenated blood to the body.
-can indicate heart strength, ventricular size, and conduction issues (electrical problems)—>such as bundle branch block
Bundle Branch Block
A problem with the heart’s electrical signals that slows down how the heart pumps. Sometimes has no symptoms.
Types:
• Right Bundle Branch Block: Affects the right side of the heart. • Left Bundle Branch Block: Affects the left side of the heart.
T wave
Last pulse, in an EKG shows the relaxation of the ventricles after they have contracted. It represents the heart’s recovery phase, allowing the ventricles to prepare for the next heartbeat. Abnormal T waves can indicate heart problems.