EKG Tracings
Another name for the resting phase is
T-wave
The category of blood vessels that return blood to the heart
vein
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
What are heart valves made from
endocardium
Precordial leads are
chest leads
The QR complex occurs
when the ventricles contract (Ventricular depolarization)
Which blood vessel leaves the heart and carries blood to all parts of the body?
Aorta
Trace the order of the electrical conduction system. Which is fourth?
the right and left bundle branches
The image generated by and EKG machine
V3 is placed?
In between v2 and v4. Or on the 4th rib.
The T wave represents?
Ventricular RE-polarization
As blood returns to the heart from the body, it enters
The right atrium
The ___________________ receives the electrical signal from AV node.
AV bundle (bundle of His)
What term describes a contracting heart?
systole
V4 is placed?
5th intercostal, crossing the mid clavicular line
Where does the U wave appear?
after the T wave . Patient has hypokalemia
During what phase does a heart chamber empty blood?
only during the contractions or systolic phase
What function does the SA node serve?
it generates the stimulus to make the heart beat
What number does each large square represent on EKG paper?
5mm
V5 is placed on?
5th intercostal space, anterior axillary line
Name of the flatline in between heart beats
Baseline
Differences between pulmonary circulation and systemic circulation
Pulmonary- the circulation between the heart and the lungs.
Systemic- between the body and the heart.
What is the purpose of the heart's conduction system?
to initiate the heartbeat and regulate the cardiac cycle
What does the bottom number of blood pressure represent?
the relaxation of the heart called diastole
Which limb lead that shows no cardiac information and serves as a ground electrode?
the right leg