Terminoloy
What does EKG stand for?
Electrocardiogram
What is the normal blood pressure?
120/80
What are the 4 valves of the heart?
Tricuspid, Pulmonary, mitral, and aortic
How many small boxes make up a large box and how many seconds does each small box represent?
5 boxes; .04 seconds
Which are the three pacemakers of the heart?
SA node, AV node, and Purkinje fibers
Wires that conduct electrical impulses from electrodes to an EKG machine
Leads
Before you can perform an EKG, you need to get the patient's ___________
Consent
What is known as the "gatekeeper"?
AV node
What is the most common paper speed?
25 mm/second
In what type of patients would it be normal to see sinus bradycardia?
Athletes or older adults who live a sedentary life.
Standard waveforms found on the EKG tracing, each corresponding to a specific event within one full electrical cycle of the heart
PQRST waves
What is the most important thing to stop the cycle of infection?
Good hand hygiene
The Purkinje Fibers fire at what rate?
20-40 bpm
How do you position a patient who has a respiratory condition?
Semi-fowler's
In what part of the heart do junctional arrhythmias occur?
Av node or tissue
Skin, lips, or fingers turning blue or discolored
cyanosis
What must you ask a patient about before performing an EKG?
Medical, social, surgical, and medication history
The ability of the cardiac cells to spontaneously generate electrical activity is called
Automaticity
Which lead goes on the fourth intercostal space, right of the sternum?
V1
Heart blocks will demonstrate delayed or absent what?
ventricular depolarization
Fainting
syncope
When would you stop a stress test?
Occlusion to the Left anterior descending artery can lead to what?
arrhythmias and death
During a stress test, instead of applying the limb leads on the extremities, where are you placing the four electrodes?
Right clavicle/shoulder area, Left clavicle, shoulder area, Left Lower abdominal area, Right lower abdominal area
This rhythm occurs when the ventricular pacemaker is not functioning and the ventricular rate will range from 20-40/min and there are no discernible P waves.
Idioventricular rhythm