NURS5315 Exam 3 Cardiac section Study
Guide
Beta 1 -
✔️This receptor causes increased contractility, increased HR, and increased renin secretion
Beta 2 -
✔️This receptor causes vasodilation and bronchial dilation
Beta 2 -
✔️Albuterol stimulates the _________ receptors and is administered during respiratory distress
Alpha 1 -
✔️This receptor causes vasoconstriction and is stimulated by Norepinephrine
Dopamine 1 -
✔️This receptor causes vasodilation
Dilation -
✔️Dopamine administered in low doses causes vaso_______________.
constriction, alpha 1 -
✔️Dopamine administered in high doses causes vaso__________ because it activates the
___________ receptor.
increased, increased -
✔️A moderate dose of dopamine causes ________ contractility and ______________ cardiac
output
Beta 1 -
,✔️Epinephrine primarily activates the ____________ receptor
does not change -
✔️Epinephrine also activates Beta 2 and Alpha 1 receptors which _________________________
vascular tone.
increased, increased -
✔️Epinephrine causes _________________ contractility and _____________________ cardiac
output.
Beta 1 and Alpha 1 -
✔️Levophed activates which 2 receoptors to cause increased vasocontriction and increased
contractility?
Sympathetic, adrenal -
✔️Epinepherine and norepinephrine are released by the ____________________ nervous system
and the ________ gland.
Heart -
✔️Beta 1 receptors are located in the __________.
Blood vessels -
✔️Beta 2 and alpha 1 receptors are located mainly in the ______________________.
Dopamine 1 -
✔️These receptors are located in the renal, mesenteric, coronary, and cerebrovascular blood
vessels
Beta 1, increase -
✔️Dobutamine stimulates ___________ receptors to improve contractility and _____________ HR.
Chronotropy -
✔️pertaining to heart rate
,Inotropy -
✔️force of myocardial contraction
Heart rate -
✔️Drugs that affect the chronotropy affect the __________________.
myocardial contraction -
✔️Drugs that affect the inotropy affect the _____________________.
Parasympathetic, decreases, decreases, dilation -
✔️Acetylchoine is released by the _____________________ nervous system and _______________
heart rate, ______________ contractility, and causes vaso_____________.
Diastole -
✔️Relaxation of the heart
Systole -
✔️Contraction of the heart
4, left atrium -
✔️There are _____ pulmonary veins that take blood back to the ________________ (chamber).
atrial kick, 20 -
✔️slight pause of impulse between SA and AV so the blood has time to push into the left ventricle.
Represents about _____% of cardiac output.
lower -
✔️The right side of the heart has ______ pressures than the left side.
higher -
✔️The left side of the heart has ____________ pressures than the right side.
, Cardiac output -
✔️heart rate x stroke volume
5 L/min -
✔️normal adult cardiac output at rest
Stroke volume -
✔️The amount of blood ejected from the ventricle in one contraction.
Preload -
✔️degree of stretch of the cardiac muscle fibers at the end of diastole
Decrease -
✔️a saturation of <50% results in a(n) ______________ in myocardial contraction.
Ejection Fraction -
✔️measurement of the volume percentage of left ventricular contents ejected with each
contraction
55-65% -
✔️normal ejection fraction
Decreases -
✔️EF _____________ in systolic heart failure.
Increased -
✔️HF may result from ________________ preload as it causes a decline in stroke volume and a
back-up of blood into the pulmonary circulation.
Afterload -
✔️The force or resistance against which the heart pumps.
Guide
Beta 1 -
✔️This receptor causes increased contractility, increased HR, and increased renin secretion
Beta 2 -
✔️This receptor causes vasodilation and bronchial dilation
Beta 2 -
✔️Albuterol stimulates the _________ receptors and is administered during respiratory distress
Alpha 1 -
✔️This receptor causes vasoconstriction and is stimulated by Norepinephrine
Dopamine 1 -
✔️This receptor causes vasodilation
Dilation -
✔️Dopamine administered in low doses causes vaso_______________.
constriction, alpha 1 -
✔️Dopamine administered in high doses causes vaso__________ because it activates the
___________ receptor.
increased, increased -
✔️A moderate dose of dopamine causes ________ contractility and ______________ cardiac
output
Beta 1 -
,✔️Epinephrine primarily activates the ____________ receptor
does not change -
✔️Epinephrine also activates Beta 2 and Alpha 1 receptors which _________________________
vascular tone.
increased, increased -
✔️Epinephrine causes _________________ contractility and _____________________ cardiac
output.
Beta 1 and Alpha 1 -
✔️Levophed activates which 2 receoptors to cause increased vasocontriction and increased
contractility?
Sympathetic, adrenal -
✔️Epinepherine and norepinephrine are released by the ____________________ nervous system
and the ________ gland.
Heart -
✔️Beta 1 receptors are located in the __________.
Blood vessels -
✔️Beta 2 and alpha 1 receptors are located mainly in the ______________________.
Dopamine 1 -
✔️These receptors are located in the renal, mesenteric, coronary, and cerebrovascular blood
vessels
Beta 1, increase -
✔️Dobutamine stimulates ___________ receptors to improve contractility and _____________ HR.
Chronotropy -
✔️pertaining to heart rate
,Inotropy -
✔️force of myocardial contraction
Heart rate -
✔️Drugs that affect the chronotropy affect the __________________.
myocardial contraction -
✔️Drugs that affect the inotropy affect the _____________________.
Parasympathetic, decreases, decreases, dilation -
✔️Acetylchoine is released by the _____________________ nervous system and _______________
heart rate, ______________ contractility, and causes vaso_____________.
Diastole -
✔️Relaxation of the heart
Systole -
✔️Contraction of the heart
4, left atrium -
✔️There are _____ pulmonary veins that take blood back to the ________________ (chamber).
atrial kick, 20 -
✔️slight pause of impulse between SA and AV so the blood has time to push into the left ventricle.
Represents about _____% of cardiac output.
lower -
✔️The right side of the heart has ______ pressures than the left side.
higher -
✔️The left side of the heart has ____________ pressures than the right side.
, Cardiac output -
✔️heart rate x stroke volume
5 L/min -
✔️normal adult cardiac output at rest
Stroke volume -
✔️The amount of blood ejected from the ventricle in one contraction.
Preload -
✔️degree of stretch of the cardiac muscle fibers at the end of diastole
Decrease -
✔️a saturation of <50% results in a(n) ______________ in myocardial contraction.
Ejection Fraction -
✔️measurement of the volume percentage of left ventricular contents ejected with each
contraction
55-65% -
✔️normal ejection fraction
Decreases -
✔️EF _____________ in systolic heart failure.
Increased -
✔️HF may result from ________________ preload as it causes a decline in stroke volume and a
back-up of blood into the pulmonary circulation.
Afterload -
✔️The force or resistance against which the heart pumps.
