EKG/ Conduction
How many BPM does the SA Node produce?
60-100 BPM
What does the T wave represent?
Ventricular re-polarization
Approximately how long is the Superior Vena Cava?
2.5-3.0 Inches
What is the normal RA mean pressure?
2-8 mmHg
What is the orifice size of the mitral valve?
4-6 cm2
how many BPM does the Atrioventricular node produce?
40-60 BPM
what happens first electrical or mechanical?
Electrical then mechanical
Normal diastolic IVC diameter
1.2-2.1 CM
75%
what are the normal LV chamber diameters during diastole?
3.7-5.8 cm
What does the P wave represent?
Atrial Depolarization
what valves are open during systole?
Semilunar valves (Pulmonary and aortic valves)
what is the tricuspid valve's orifice size?
7-9 CM2
*Hint* lowest in the body.
60%
What are the normal LV chamber diameter in systole?
2.1-3.9 cm
What does the Q R S Complex represent?
Ventricular Depolarization
When is the pressure in the ventricles the highest?
Mechanical Ventricular Systole
Normal RV pressure?
15-25 mmHg (systolic) 2-8 mmHg (diastolic)
how many times greater is the pressure in the LV verses the RV?
5 times
When does Atrial re-polarization happen?
it happens behind the QRS complex
Name the 3 steps of the Mitral Valve and Tricuspid valve when filling the ventricles.
Rapid filling, Diastasis, Atrial Kick.
Normal LA chamber dimension?
2.7-4.0 cm
what is the pressure in the ascending aorta?
<120