RCIS Exam Study Guide Questions And Answers
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If a person has an RV MI would the RV EDP be affected? -
ANSWER Yes. If the muscle fibers are dead the heart's ability to
squeeze is impacted so more blood is left behind.
What would cause the LV systolic pressure to increase? -
ANSWER Aortic stenosis. (What would prevent a RBC from
moving forward from the RV?)
What would cause your LVEDP to increase but not increase your
LV systolic pressure? - ANSWER LV MI would increase the LV
EDP because the heart is less effective as a pump. As the LV is
able to eject less blood, the end diastolic pressure gets higher.
The systolic pressure does not need to increase because that is
the pressure to get the blood past the aortic valve.
As the EF (ejection fraction) goes down the EDP (end diastolic
pressure) _________ ___________. - ANSWER Goes up
What is the RV systolic pressure of pulmonic stenosis? -
ANSWER Any pressure higher than 25mmHg is pulmonic
stenosis. The narrower the valve the ore pressure is needed to
move across it. The muscle fibers need to generate more
pressure to get RBCs past the stenotic valve.
What happens to the pressure in the RA in the case of tricuspid
regurgitation? - ANSWER The RA pressure increases.
,Blood likes the path of less pressure. It will go back across the
tricuspid valve when there is less pressure due to regurgitation.
This causes the RA to carry more blood because it continues to
fill with blood from the IVC and SVC in addition to the blood
flowing back from the RV through tricuspid regurgitation.
What is the PA pressure in COPD? - ANSWER Wedge pressure
is elevated in COPD and this causes a backflow of pressure to
the PA.
What is the special protective factor of the LA? - ANSWER The
LA has a protein that senses volume. If the volume increases
because of MS or MR then the LA will sense that and allow the
muscle fibers to get longer in the LA. The LA gets bigger to hold
the volume and to prevent the pressure from rising in the lungs.
What is the PA pressure in someone with mitral stenosis? -
ANSWER The pulmonary artery pressure will eventually increase
because the pressure in the LA will increase, which will cause the
wedge pressure to increase, which will ultimately lead to an
increas in the pulmonary arteries
What is the pulmonary artery pressure in someone with mitral
regurgitation? - ANSWER This increases the volume of blood in
the LA which increases the pressure there. The LA is unique and
protective, but eventually this will lead to an increase in
pulmonary artery pressure.
Which chamber of the heart is larger LV or RV? - ANSWER The
chamber of the RV is larger because the LV has more muscle to
push past the aortic valve to the body.
Can your PA pressure ever be greater than your RV systolic
pressure? - ANSWER No. The pulmonary artery pressure
,cannot be greater because the RV would have to increase to
allow the blood to flow to the PA. Blood cannot flow up a
gradient.
What is the PCWP of mitral regurgitation? - ANSWER In a
chronic situation, because the LA is protective, the PCWP will be
elevated above the normal.
What is the PCWP of mitral stenosis? - ANSWER In a chronic
situation, because the LA is protective, the PCWP will elevate.
What is the PCWP of an LV MI? - ANSWER The EDP goes up,
the LA pressure will go up. This will cause the PCWP to increase.
What is a normal RVEDP? - ANSWER 5mmHg
What is a normal LVEDP? - ANSWER 7-12mmHg
EDP represents ________? - ANSWER The amount of blood left
after systole
When we measure CO in a patient, which ventricle are we
measuring it out of? - ANSWER The Right Ventricle. It is
assumed to be the same as the LV.
True or False: The RV and LV have the same number of muscle
fibers, but the LV works harder and therefore gets bigger in
diameter. - ANSWER True
What is a normal RV systolic pressure? - ANSWER 25mmHg
What is the normal systolic LV pressure? - ANSWER 120mmHg
, Is the LVEF the same as the RVEF? - ANSWER Yes. The LVEF
and the RVEF are the same
Is the stroke volume in the RV the same as the LV? - ANSWER
yes. They are the same.
Is the CO the same in the LV and RV? - ANSWER Yes. They
are the same.
Why is the RVEDP different from the LVEDP? - ANSWER As
the LV muscle fibers get bigger there is less room in the left
chamber for blood. The EDP is different in the LV and the RV
because the RV has much more room for the blood left than the
LV because it is full of dilated muscle fibers. This is the increase
in pressure.
The muscle fibers of the coronary arteries run circular to the
artery. True or False - ANSWER False. They run longitudinal
(the length) of the artery. If they wrapped around the coronary
artery then the blood would be squeezed/compressed but not
move. The contraction of arteries is done is a systematic way.
The intima of an artery is covered in what kind of cells? -
ANSWER Endothelium.
What is a major issue with endothelium in the arteries? -
ANSWER The endothelium do no stick to the muscle fibers of the
media very well. They are washed away easily by turbulent flow.
What are the four main jobs of the endothelium? - ANSWER 1.
Create a slippery environment for blood flow
2. Reproduce quickly to replace any lost endothelial cells.
3. Make nitric oxide to dialate the arteries and make easier flow.
Verified 100% Correct
If a person has an RV MI would the RV EDP be affected? -
ANSWER Yes. If the muscle fibers are dead the heart's ability to
squeeze is impacted so more blood is left behind.
What would cause the LV systolic pressure to increase? -
ANSWER Aortic stenosis. (What would prevent a RBC from
moving forward from the RV?)
What would cause your LVEDP to increase but not increase your
LV systolic pressure? - ANSWER LV MI would increase the LV
EDP because the heart is less effective as a pump. As the LV is
able to eject less blood, the end diastolic pressure gets higher.
The systolic pressure does not need to increase because that is
the pressure to get the blood past the aortic valve.
As the EF (ejection fraction) goes down the EDP (end diastolic
pressure) _________ ___________. - ANSWER Goes up
What is the RV systolic pressure of pulmonic stenosis? -
ANSWER Any pressure higher than 25mmHg is pulmonic
stenosis. The narrower the valve the ore pressure is needed to
move across it. The muscle fibers need to generate more
pressure to get RBCs past the stenotic valve.
What happens to the pressure in the RA in the case of tricuspid
regurgitation? - ANSWER The RA pressure increases.
,Blood likes the path of less pressure. It will go back across the
tricuspid valve when there is less pressure due to regurgitation.
This causes the RA to carry more blood because it continues to
fill with blood from the IVC and SVC in addition to the blood
flowing back from the RV through tricuspid regurgitation.
What is the PA pressure in COPD? - ANSWER Wedge pressure
is elevated in COPD and this causes a backflow of pressure to
the PA.
What is the special protective factor of the LA? - ANSWER The
LA has a protein that senses volume. If the volume increases
because of MS or MR then the LA will sense that and allow the
muscle fibers to get longer in the LA. The LA gets bigger to hold
the volume and to prevent the pressure from rising in the lungs.
What is the PA pressure in someone with mitral stenosis? -
ANSWER The pulmonary artery pressure will eventually increase
because the pressure in the LA will increase, which will cause the
wedge pressure to increase, which will ultimately lead to an
increas in the pulmonary arteries
What is the pulmonary artery pressure in someone with mitral
regurgitation? - ANSWER This increases the volume of blood in
the LA which increases the pressure there. The LA is unique and
protective, but eventually this will lead to an increase in
pulmonary artery pressure.
Which chamber of the heart is larger LV or RV? - ANSWER The
chamber of the RV is larger because the LV has more muscle to
push past the aortic valve to the body.
Can your PA pressure ever be greater than your RV systolic
pressure? - ANSWER No. The pulmonary artery pressure
,cannot be greater because the RV would have to increase to
allow the blood to flow to the PA. Blood cannot flow up a
gradient.
What is the PCWP of mitral regurgitation? - ANSWER In a
chronic situation, because the LA is protective, the PCWP will be
elevated above the normal.
What is the PCWP of mitral stenosis? - ANSWER In a chronic
situation, because the LA is protective, the PCWP will elevate.
What is the PCWP of an LV MI? - ANSWER The EDP goes up,
the LA pressure will go up. This will cause the PCWP to increase.
What is a normal RVEDP? - ANSWER 5mmHg
What is a normal LVEDP? - ANSWER 7-12mmHg
EDP represents ________? - ANSWER The amount of blood left
after systole
When we measure CO in a patient, which ventricle are we
measuring it out of? - ANSWER The Right Ventricle. It is
assumed to be the same as the LV.
True or False: The RV and LV have the same number of muscle
fibers, but the LV works harder and therefore gets bigger in
diameter. - ANSWER True
What is a normal RV systolic pressure? - ANSWER 25mmHg
What is the normal systolic LV pressure? - ANSWER 120mmHg
, Is the LVEF the same as the RVEF? - ANSWER Yes. The LVEF
and the RVEF are the same
Is the stroke volume in the RV the same as the LV? - ANSWER
yes. They are the same.
Is the CO the same in the LV and RV? - ANSWER Yes. They
are the same.
Why is the RVEDP different from the LVEDP? - ANSWER As
the LV muscle fibers get bigger there is less room in the left
chamber for blood. The EDP is different in the LV and the RV
because the RV has much more room for the blood left than the
LV because it is full of dilated muscle fibers. This is the increase
in pressure.
The muscle fibers of the coronary arteries run circular to the
artery. True or False - ANSWER False. They run longitudinal
(the length) of the artery. If they wrapped around the coronary
artery then the blood would be squeezed/compressed but not
move. The contraction of arteries is done is a systematic way.
The intima of an artery is covered in what kind of cells? -
ANSWER Endothelium.
What is a major issue with endothelium in the arteries? -
ANSWER The endothelium do no stick to the muscle fibers of the
media very well. They are washed away easily by turbulent flow.
What are the four main jobs of the endothelium? - ANSWER 1.
Create a slippery environment for blood flow
2. Reproduce quickly to replace any lost endothelial cells.
3. Make nitric oxide to dialate the arteries and make easier flow.
