©THEBRIGHTSTARS 2024
NUR2020 Exam 1 Questions With Correct
Answers
Perfusion - answer✔the body's ability to circulate a continuous supply of blood throughout the
body
S1 (3) - answer✔systole
closure of AV vales
ventricular contraction
S2 (3) - answer✔diastole
closure of semilunar vales
ventricular relaxation
cardiac output is determined by - answer✔stroke volume X heart rate
what is known as the pacemaker of the heart? - answer✔SA node
layers of the heart wall (3) - answer✔1. epicardium - outer layer
2. myocardium - thick, muscular layer
3. endocardium - innermost later
murmurs - answer✔harsh, blowing sounds caused by disruption of blood flow into the heart,
between the chambers, or into the vascular system
pericardium - answer✔thick, strong, double-layered membrane that encases the heart
pericardium serves to - answer✔protect and anchor the heart to surrounding tissues
two layers of pericardium - answer✔visceral and parietal
serous fluid - answer✔fluid inside the pericardial cavity that allows smooth movement of the
pericardial layers and the heart during contraction
what prevents the heart from overfilling with blood? - answer✔snug encasement of the
pericardium
, ©THEBRIGHTSTARS 2024
the right atrium receives blood from - answer✔superior vena cava, inferior vena cava, and
coronary sinus
Artery that carries deoxygenated blood - answer✔pulmonary artery
what kind of system is the right side of the heart and what purpose does it serve? -
answer✔low-pressure; protects the pulmonary capillary bed
what kind of system is the left side of the heart and what purpose does it serve? - answer✔high-
pressure; provides adequate pressure to support blood flow
splitting of S2 - answer✔may occur toward the end of inspiration because of a slight difference
in how long the semilunar valves take to close
t-dub sound - answer✔split sound that can occur due to aortic valve closing slightly earlier than
pulmonic valve
S2 splitting is considered normal when - answer✔the splitting is is from an increase in
intrathoracic pressure during inspiration
S3 - answer✔Ventricular gallop; happens when blood flow into the ventricles as the AV valves
open causes vibrations during diastole
S3 may be heard in - answer✔children, young adults, or pregnant women during 3rd trimester
S4 - answer✔atrial gallop; atrial contraction and ejection of blood into the ventricles in late
diastole
S4 may be heard in - answer✔children, well-conditioned athletes, and healthy older adults
without cardiac disease
S3 and S4 are often normal, but may be associated with - answer✔myocardial infarction or
heart failure
interpretation of heart sounds is based on - answer✔pitch, duration, intensity, phase, and
location on the precordium
auscultation site for SI - answer✔apex; use diaphragm of stethoscope; unaffected by position
auscultation site for S2 - answer✔2nd ICS; pulmonary component heard best at left sternal
border; aortic component heard best at right sternal border; diaphragm of stethoscope;
sitting/supine
auscultation site for S3 - answer✔apex with bell of stethoscope; left lateral position or supine
auscultation site for S4 - answer✔apex with bell of stethoscope; lest lateral position or supine
S1 pitch - answer✔high
NUR2020 Exam 1 Questions With Correct
Answers
Perfusion - answer✔the body's ability to circulate a continuous supply of blood throughout the
body
S1 (3) - answer✔systole
closure of AV vales
ventricular contraction
S2 (3) - answer✔diastole
closure of semilunar vales
ventricular relaxation
cardiac output is determined by - answer✔stroke volume X heart rate
what is known as the pacemaker of the heart? - answer✔SA node
layers of the heart wall (3) - answer✔1. epicardium - outer layer
2. myocardium - thick, muscular layer
3. endocardium - innermost later
murmurs - answer✔harsh, blowing sounds caused by disruption of blood flow into the heart,
between the chambers, or into the vascular system
pericardium - answer✔thick, strong, double-layered membrane that encases the heart
pericardium serves to - answer✔protect and anchor the heart to surrounding tissues
two layers of pericardium - answer✔visceral and parietal
serous fluid - answer✔fluid inside the pericardial cavity that allows smooth movement of the
pericardial layers and the heart during contraction
what prevents the heart from overfilling with blood? - answer✔snug encasement of the
pericardium
, ©THEBRIGHTSTARS 2024
the right atrium receives blood from - answer✔superior vena cava, inferior vena cava, and
coronary sinus
Artery that carries deoxygenated blood - answer✔pulmonary artery
what kind of system is the right side of the heart and what purpose does it serve? -
answer✔low-pressure; protects the pulmonary capillary bed
what kind of system is the left side of the heart and what purpose does it serve? - answer✔high-
pressure; provides adequate pressure to support blood flow
splitting of S2 - answer✔may occur toward the end of inspiration because of a slight difference
in how long the semilunar valves take to close
t-dub sound - answer✔split sound that can occur due to aortic valve closing slightly earlier than
pulmonic valve
S2 splitting is considered normal when - answer✔the splitting is is from an increase in
intrathoracic pressure during inspiration
S3 - answer✔Ventricular gallop; happens when blood flow into the ventricles as the AV valves
open causes vibrations during diastole
S3 may be heard in - answer✔children, young adults, or pregnant women during 3rd trimester
S4 - answer✔atrial gallop; atrial contraction and ejection of blood into the ventricles in late
diastole
S4 may be heard in - answer✔children, well-conditioned athletes, and healthy older adults
without cardiac disease
S3 and S4 are often normal, but may be associated with - answer✔myocardial infarction or
heart failure
interpretation of heart sounds is based on - answer✔pitch, duration, intensity, phase, and
location on the precordium
auscultation site for SI - answer✔apex; use diaphragm of stethoscope; unaffected by position
auscultation site for S2 - answer✔2nd ICS; pulmonary component heard best at left sternal
border; aortic component heard best at right sternal border; diaphragm of stethoscope;
sitting/supine
auscultation site for S3 - answer✔apex with bell of stethoscope; left lateral position or supine
auscultation site for S4 - answer✔apex with bell of stethoscope; lest lateral position or supine
S1 pitch - answer✔high
