1
CARDIOVASCULAR SYSTEM ANATOMY
AND PHYSIOLOGY EXAM WITH
VERIFIED SOLUTIONS | GUARANTEED
PASS | NEW
The nurse assesses the electrocardiogram (ECG) and heart rhythm of
an older patient that shows atrial dysrhythmias. The nurse understands
that aging may cause a decrease in the number of pacemaker cells,
leading to cardiovascular abnormalities. Which physiological
consequence of a decreased number of pacemaker cells may cause
dysrhythmias in this patient? - Correct Answer-Premature ventricular
contractions (PVCs)
A nurse assesses the heart rate (HR) and rhythm of an older patient
who is suspected of having age-related cardiac valve dysfunction.
Which is the most appropriate nursing intervention that would help in
confirming this in the patient? - Correct Answer-Assessing if the
patient has difficulty breathing
Which cardiac parameter refers to the degree of myocardial fiber
stretch at the end of diastole and is determined by the amount of blood
returning from the venous system to the right side of the heart and the
pulmonary system to the left side of the heart?
1
Preload
2
Afterload
3
Impedance
4
Stroke volume (SV) - Correct Answer-preload
The head nurse is teaching a group of student nurses about cardiac
valves. Which statement by the student nurse requires correction? -
1
, 2
Correct Answer-"The pulmonic valve separates the right ventricle
(RV) from the pulmonary vein."
Which statement regarding atrioventricular (AV) valves and
semilunar valves of the heart is true?
1
Atrioventricular (AV) valves prevent the back flow of blood into the
atria during diastole.
2
Atrioventricular (AV) valves allow the flow of blood from atria to
ventricles during systole.
3
Semilunar valves prevent blood from flowing back into the ventricles
during diastole.
4
Semilunar valves allow the coronary artery blood flow to the
myocardium during systole. - Correct Answer-Semilunar valves
prevent blood from flowing back into the ventricles during diastole
The head nurse is teaching the newly recruited nurses regarding the
properties of the heart. Which term would she use that best describes
the amount of blood ejected by the LV with each cardiac contraction?
- Correct Answer-Stroke volume (SV)
While monitoring the hemodynamic status of a patient with
cardiovascular disease (CVD), the nurse finds that the patient's
cardiac output (CO) is 2.4 L/min. Which treatment strategy does the
nurse expect from the primary health care provider in this situation? -
Correct Answer-Positive inotropic drugs
Which structure of the heart is responsible for receiving deoxygenated
venous blood as well as the blood from the heart muscle?
1
Septum
2
Pericardium
3
2
CARDIOVASCULAR SYSTEM ANATOMY
AND PHYSIOLOGY EXAM WITH
VERIFIED SOLUTIONS | GUARANTEED
PASS | NEW
The nurse assesses the electrocardiogram (ECG) and heart rhythm of
an older patient that shows atrial dysrhythmias. The nurse understands
that aging may cause a decrease in the number of pacemaker cells,
leading to cardiovascular abnormalities. Which physiological
consequence of a decreased number of pacemaker cells may cause
dysrhythmias in this patient? - Correct Answer-Premature ventricular
contractions (PVCs)
A nurse assesses the heart rate (HR) and rhythm of an older patient
who is suspected of having age-related cardiac valve dysfunction.
Which is the most appropriate nursing intervention that would help in
confirming this in the patient? - Correct Answer-Assessing if the
patient has difficulty breathing
Which cardiac parameter refers to the degree of myocardial fiber
stretch at the end of diastole and is determined by the amount of blood
returning from the venous system to the right side of the heart and the
pulmonary system to the left side of the heart?
1
Preload
2
Afterload
3
Impedance
4
Stroke volume (SV) - Correct Answer-preload
The head nurse is teaching a group of student nurses about cardiac
valves. Which statement by the student nurse requires correction? -
1
, 2
Correct Answer-"The pulmonic valve separates the right ventricle
(RV) from the pulmonary vein."
Which statement regarding atrioventricular (AV) valves and
semilunar valves of the heart is true?
1
Atrioventricular (AV) valves prevent the back flow of blood into the
atria during diastole.
2
Atrioventricular (AV) valves allow the flow of blood from atria to
ventricles during systole.
3
Semilunar valves prevent blood from flowing back into the ventricles
during diastole.
4
Semilunar valves allow the coronary artery blood flow to the
myocardium during systole. - Correct Answer-Semilunar valves
prevent blood from flowing back into the ventricles during diastole
The head nurse is teaching the newly recruited nurses regarding the
properties of the heart. Which term would she use that best describes
the amount of blood ejected by the LV with each cardiac contraction?
- Correct Answer-Stroke volume (SV)
While monitoring the hemodynamic status of a patient with
cardiovascular disease (CVD), the nurse finds that the patient's
cardiac output (CO) is 2.4 L/min. Which treatment strategy does the
nurse expect from the primary health care provider in this situation? -
Correct Answer-Positive inotropic drugs
Which structure of the heart is responsible for receiving deoxygenated
venous blood as well as the blood from the heart muscle?
1
Septum
2
Pericardium
3
2
