Part 1 ECG Leads and Obtaining Rhythm Strips
List cardiac conduction in order.
What are: SA node, AV node, Bundle of HIS, L/R bundle branches, and Purkinje fibers?
One small box on ECG paper represents this amount of time.
What is .04 seconds?
An impulse originating outside the SA node.
What is a Premature Atrial Contractions PAC?
This contraction occurs when the impulse originates in the ventricles.
What is a Premature Ventricular Contraction PVC?
Name for a Dysfunction in the right bundle branch causing impulse to be blocked
What is a right bundle branch block?
ECG is short for.
What is Electrocardiogram?
1 large box on ECG paper equals this amount of times.
What is .2 seconds?
This is arrhythmia is caused by the electrical impulse circulating in the atria and over to the tricuspid valve area due to the AV node being blocked.
What is Atrial Flutter?
This arrhythmia has a regular, but fast rate. The rate can be as fast as 250 beats per minute. The P-wave is lost in the T-wave and the QRS is narrow.
What is Supraventricular tachycardia SVT?
Name for a dysfunction in the left bundle branch causing impulse to be blocked.
What is a left bundle branch block?
This person invented the ECG in 1895.
Who is Willem Einthoven?
This part of the wave represents atrial contraction/depolarization.
What is the P-wave?
the most common arrhythmia known for it's asynchronous electrical activity in the atria.
What is Atrial Fibrillation?
This arrhythmia occurs when three or more PVCs occur in a row with a ventricular rate of over 100 beats per minute
What is Ventricular Tachycardia or V-tach?
In this heart block the atria and ventricles are not electrically connected thus no impulses travel the normal route.
What is 3rd degree heart block?
Identify the color and location of the four leads.
What are: white/RA, black/LA, red/LL, green/RL.
Remember Clouds (white) over grass (green); Smoke (black) over fire (red);
This part of the wave represents Ventricular contraction/depolarization.
What is the QRS Complex?
Name a risk factor for PACS.
What are: over 50 years of age, alcohol, nicotine, anxiety, fatigue, fever, and infectious diseases, heart disease, respiratory failure, digoxin toxicity, and certain electrolyte imbalances.
Provide these two treatments when a patient presents with no pulse.
What are CPR and defibrillate?
This heart block is characterized by an abnormal delay of the impulse from the atria to the ventricles.
What is 1st degree heart block?
Identify the number and location of the precordial/chest leads?
V1: 4th intercostal space, right sternal border
V2: 4th intercostal space, left sternal border
V3: Midway between V2 and V4
V4: 5th intercostal space, midclavicular line
V5: 5th intercostal space, on the anterior axillary line
V6: 5th intercostal space, left midaxillary line
This part of the wave represents ventricular repolarization/relaxation.
What is the T-wave?
Name for occurring in every other beat.
What is bigeminy?
This ventricular arrhythmia occurs when impulses originate from multiple areas in the ventricles. It can be triggered by untreated V tach, myocardial infarction, ischemia, drug toxicity, shock, or severe electrolyte imbalances.
What is Ventricular Fibrillation?
This conduction block arrhythmia occurs when some of the impulses from the AV node are blocked
What is second degree heart block?