EKG basics
What does EKG stand for?
Electrocardiogram
How many standard limb leads are there?
4 standard limb leads
What organ pumps blood throughout the body?
Heart
What test records the heart's electrical activity?
EKG
What should an MA explain to the patient before an EKG?
Explain the procedure and what the patient should expect
What does an EKG measure?
The electrical activity of the heart
What are the chest leads called?
Precordial leads
What chamber pumps blood to the lungs?
Right ventricle
What test uses sound waves to create images of the heart?
Echocardiogram
Where should the patient lie during a resting EKG?
Have the patient lie comfortably on their back
What is the normal heart rhythm called?
Sinus Rhythm
How many precordial/chest leads are used in a standard 12 lead EKG?
6
Which chamber recives oxygenated blood from the lungs?
What test measures blood pressure over time?
Ambulatory Blood pressure monitoring
Why should be the patient remain still during an EKG?
Movement can creare eletrical interference/artifacts
What does the P-wave represent?
Atrial depolarization
Where is V1 placed?
4th intercostal space, right strenal border
What valve is between the left atrium and left ventricle?
Mitral valve
What test uses a treadmill or exercise to monitor the heart?
Exercise stress test
What should the MA do if the patient feels dizzy during testing?
Stop/pause the test as approriate and notify the provider
What do the QRS complex and T wave represent?
QRS= ventriculer depolarization, T wave= ventriculer repolarization
Where is V4 placed?
5th intercostal space, left mid clavicular line
What is the largest artery in the body?
Aorta
What test records the heart rhythm for 24 hours or longer?
Holter monitor
What should the MA do with the EKG tracing after completing the test?
Ensure it is properly labeled and given/stored according to office procedure