EKG Tracings
The first wave on an EKG is? _________
It represents _________________
What happens when the atria contract
Blood is squeezed into the ventricles
Who is the natural pacemaker of your heart?
It is located on which chamber of the heart?
SA node, Right atrium below the entrance of the Vena Cava
Where is the base of the heart located?
between the lungs
Changes in breathing can cause
sinus arrhythmia
The QRS Complex represents?
Ventricular depolarization
The category of blood vessel that directs blood away from the heart
Arteries
The right and left bundle branches send the signal to?
Purkinje Fibers
V4 is placed?
5th intercostal, the mid clavicular line
What is a flatline, associated with death called?
asystole
The T wave represents?
Ventricular RE-polarization
Deoxygenated blood from the lower part of the body (below the diaphragm) enters the heart via which blood vessel?
Inferior vena cava
The ___________________ receives the electrical signal from AV node.
AV bundle (bundle of His)
What is an electrocardigraph?
The machine/instrument used to generate and EKG
Lack of blood flow to the heart can cause
angina
This u waves occurs when?
Patient has hypokalemia
Where is blood oxygenated when it passes through?
through the alveoli and capillaries of the lungs
The _________receives electrical signals from the SA node
AV node
What is an electrode?
Sticky pads with conductive gel used to connect lead wires
How are asystole and agonal different?
asystole is flatline. agonal is a very slow heart rat2 20-40 bpm.
Name of the flatline in between heart beats
Baseline
When oxygenated blood travels through the left atrium to the left ventricle is travels through which valve?
Bicuspid (mitral valve)
Located in the walls of the ventricles, these fibers transmit the signals to stimulate the ventricles to contract
Purkinje fibers
Differentiate lead and lead wire
Lead=image
Lead wire=wires that connect to the electrodes
What is the 3rd step in a possible heart attack.
The clot travels to an artery that is too narrow for it to pass through