Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
ECG or EKG
|
-An electrical record for the heart using surface electrodes.
-Not an action potential. |
|
|
Arrhythmia
|
-Irregular heart beat
|
|
|
Fibrillation
|
-Myocardial cell depolarizations become asynchrones
-The heart begins to quiver and no blood is being pumped -Ventricular fibrillation is life-threatening |
|
|
Dipole
|
-A separation of electrically charged regions
|
|
|
Myopathes
|
-Damage that occurs to the heart
-Usually due to a heart attack |
|
|
PVC
|
-PreVentricular Contraction
|
|
|
P Wave
|
-Atrial depolarization
-ECG wave that occurs toward the end of the entire heart's diastolic period and beginning of atrial systole |
|
|
Bradycardia
|
-HR less than 60 bpm
|
|
|
Primary AV Block
|
- (>0.2 sec) increase in PR time interval
|
|
|
Secondary AV Block
|
-When 1 out of 2-4 atrial AP's can pass/skip ventricles resulting in P Waves with no QRS
|
|
|
Tertiary AV Block
|
-No atrial activity passes to ventricles
-P Wave does NOT lead to QRS complex -Ventricles driven slowly by Bundle of His and Perkinje Fibres |
|
|
QRS Complex
|
-Ventricles depolarizing (R), atria repolarizing (S)
|
|
|
Tachychardia
|
-HR greater than 100 bpm
|
|
|
T Wave
|
-The ventricles repolarize
-ECG wave occurs at the end of ventricular systole and beginning of ventricular diastole |
|
|
Flutter
|
-Contraction rates between 200-300 bpm
|
