NSG 170: Perfusion || with Error-free Answers.
Stroke volume (SV) correct answers The amount of blood pumped into the aorta with each
contraction of the left ventricle
Heart Rate (HR) correct answers number of heart beats per minute
Cardiac output (CO) correct answers the amount of blood pumped by the heart into the
pulmonary and systemic circulations in 1 minute
Contractility correct answers the inherent capability of the muscle fibers to shorten
Preload correct answers Amount of cardiac muscle fiber tension, or stretch that exists at the end
of diastole, just before contraction of the ventricles. How much blood that is in the heart.
Afterload correct answers the force the ventricles must overcome to eject their blood volume
Ejection fraction correct answers the fraction of percentage of the diastolic volume that is ejected
from the heart during systole
Blood pressure correct answers the force that blood exerts against the walls of the arteries as it is
pumped from the heart
Trouble with the lungs affects which side of the heart? correct answers The right side. It affects
preload and means there is a fluid buildup somewhere. Causes high BP and high HR
Trouble with high cholesterol and MI affects which side of the heart? correct answers The left
side. It affects afterload and leads to low BP and high HR
, Alterations to perfusion correct answers -clotting disorders
-childhood congential heart defects
-cardiac disease or illness of adulthood
-cardiac illness related to aging
Non-modifiable risk factors for perfusion alterations correct answers age, race, gender, family
history, personal health history
Modifiable risk factors for perfusion alterations correct answers smoking cessation, diet, exercise
Capillary refill correct answers assess for venous filling, should be less than 2-3 seconds
Apical pulse vs. Peripheral pulse correct answers apical pulse-central pulse by the heart
peripheral pulse-pulses away from the heart
Doppler correct answers handheld transducer that amplifies blood pressure/pulse sounds. used
when pulses can't be palpated
Doppler flow studies correct answers often used when a fetus is smaller than normal for his or
her gestational age; show that blood flow in the umbilical vessels of a fetus with IUGR is
decreased, indicating that the fetus may not be receiving enough blood, nutrients, and oxygen
from the placenta
Renal ultrasound correct answers a doppler derived technique to examine perfusion in the
kidneys
Ankle-Brachial Index (ABI) correct answers -ankle systolic blood pressure divided by arm
systolic blood pressure
Stroke volume (SV) correct answers The amount of blood pumped into the aorta with each
contraction of the left ventricle
Heart Rate (HR) correct answers number of heart beats per minute
Cardiac output (CO) correct answers the amount of blood pumped by the heart into the
pulmonary and systemic circulations in 1 minute
Contractility correct answers the inherent capability of the muscle fibers to shorten
Preload correct answers Amount of cardiac muscle fiber tension, or stretch that exists at the end
of diastole, just before contraction of the ventricles. How much blood that is in the heart.
Afterload correct answers the force the ventricles must overcome to eject their blood volume
Ejection fraction correct answers the fraction of percentage of the diastolic volume that is ejected
from the heart during systole
Blood pressure correct answers the force that blood exerts against the walls of the arteries as it is
pumped from the heart
Trouble with the lungs affects which side of the heart? correct answers The right side. It affects
preload and means there is a fluid buildup somewhere. Causes high BP and high HR
Trouble with high cholesterol and MI affects which side of the heart? correct answers The left
side. It affects afterload and leads to low BP and high HR
, Alterations to perfusion correct answers -clotting disorders
-childhood congential heart defects
-cardiac disease or illness of adulthood
-cardiac illness related to aging
Non-modifiable risk factors for perfusion alterations correct answers age, race, gender, family
history, personal health history
Modifiable risk factors for perfusion alterations correct answers smoking cessation, diet, exercise
Capillary refill correct answers assess for venous filling, should be less than 2-3 seconds
Apical pulse vs. Peripheral pulse correct answers apical pulse-central pulse by the heart
peripheral pulse-pulses away from the heart
Doppler correct answers handheld transducer that amplifies blood pressure/pulse sounds. used
when pulses can't be palpated
Doppler flow studies correct answers often used when a fetus is smaller than normal for his or
her gestational age; show that blood flow in the umbilical vessels of a fetus with IUGR is
decreased, indicating that the fetus may not be receiving enough blood, nutrients, and oxygen
from the placenta
Renal ultrasound correct answers a doppler derived technique to examine perfusion in the
kidneys
Ankle-Brachial Index (ABI) correct answers -ankle systolic blood pressure divided by arm
systolic blood pressure
