RDCS PRACTICE EXAM #1 QUESTIONS &
ANSWERS GRADED A+!!
What describes a normal mitral valve Answer - the anterior leaflet is usually 2-
3x longer than the posterior leaflet of the mitral valve.
What is the equation for Stroke Volume Answer - CSA x VTI
Which of the following coronary vessels courses through the posterior
interventricular groove Answer - Middle coronary vein and posterior
descending coronary artery
There are _____ aortic cusps and ______ sinuses of Valsalva in the aortic root.
Answer - 3, 3. Each cusps is connected to the aortic root and forms a slight
bulge at the base of the leaflet called the sinus of valsalva
The early heart tube normally Answer - loops anterior and to the right
Preload vs. Afterload Answer - Preload is the amount of blood entering the
heart and afterload refers to the amount of resistance as the heart ejects blood
At what point in the cardiac cycle is the RV at its smallest dimensions Answer -
Lowest volume of blood is present at end systole
Left ventricle pressure is lowest during Answer - the onset of diastole. It
steadily decreases as the blood is ejected from the chamber in systole. When
the AV valve closes, the LV pressure is lower than the LA pressure and the
mitral valve opens
, How does doppler evaluation demonstrate that the pulmonary vascular
resistance is normally lower then resistance in the systemic vascular system?
Answer - The flow through aortic valve reaches a peak velocity faster than the
flow through the pulmonary valve
Which of the following describes the left ventricle Answer - systolic pressure is
normally around 120mmHg
Which of the following is correct regarding the coronary sinus Answer - used
with aorta to differentiate pleural effusions from pericardial effusions
The S2 heart sound corresponds with Answer - semilunar valves closing
Which fetal cardiac shunt usually closes first after birth? Answer - Ductus
arteriosus
The normal range for cardiac stroke volume is Answer - 70-100cc
Which of the following describes a way to differentiate a waveform obtained
from the mitral valve from a waveform obtained from the tricuspid valve in a
normal heart? Answer - The aortic flow pattern can be seen on the opposite
side of the baseline on the MV tracing, but the pulmonary artery flow is not
evident on the TV tracing
Which of the following correctly describes the movement of blood from the LA
into the LV in rapid filling phase? Answer - When atrial pressure increases, the
mitral valve opens and blood is pulled into the LV due to the rapidly relaxing
ventricle
ANSWERS GRADED A+!!
What describes a normal mitral valve Answer - the anterior leaflet is usually 2-
3x longer than the posterior leaflet of the mitral valve.
What is the equation for Stroke Volume Answer - CSA x VTI
Which of the following coronary vessels courses through the posterior
interventricular groove Answer - Middle coronary vein and posterior
descending coronary artery
There are _____ aortic cusps and ______ sinuses of Valsalva in the aortic root.
Answer - 3, 3. Each cusps is connected to the aortic root and forms a slight
bulge at the base of the leaflet called the sinus of valsalva
The early heart tube normally Answer - loops anterior and to the right
Preload vs. Afterload Answer - Preload is the amount of blood entering the
heart and afterload refers to the amount of resistance as the heart ejects blood
At what point in the cardiac cycle is the RV at its smallest dimensions Answer -
Lowest volume of blood is present at end systole
Left ventricle pressure is lowest during Answer - the onset of diastole. It
steadily decreases as the blood is ejected from the chamber in systole. When
the AV valve closes, the LV pressure is lower than the LA pressure and the
mitral valve opens
, How does doppler evaluation demonstrate that the pulmonary vascular
resistance is normally lower then resistance in the systemic vascular system?
Answer - The flow through aortic valve reaches a peak velocity faster than the
flow through the pulmonary valve
Which of the following describes the left ventricle Answer - systolic pressure is
normally around 120mmHg
Which of the following is correct regarding the coronary sinus Answer - used
with aorta to differentiate pleural effusions from pericardial effusions
The S2 heart sound corresponds with Answer - semilunar valves closing
Which fetal cardiac shunt usually closes first after birth? Answer - Ductus
arteriosus
The normal range for cardiac stroke volume is Answer - 70-100cc
Which of the following describes a way to differentiate a waveform obtained
from the mitral valve from a waveform obtained from the tricuspid valve in a
normal heart? Answer - The aortic flow pattern can be seen on the opposite
side of the baseline on the MV tracing, but the pulmonary artery flow is not
evident on the TV tracing
Which of the following correctly describes the movement of blood from the LA
into the LV in rapid filling phase? Answer - When atrial pressure increases, the
mitral valve opens and blood is pulled into the LV due to the rapidly relaxing
ventricle
