NURS 617 Pharm Exam 2 LATEST
2025/2026COMPLETE QUESTION AND ANSWER
100% Guaranteed Pass
Terms in this set (154)
During the cardiac cycle, c. Purkinje fibers
which structure directly
delivers action potential Each cardiac action potential travels from the SA
to the ventricular node to the AV node to the bundle of His (AV bundle),
myocardium? through the bundle branches, and finally to the
Purkinje fibers and the ventricular myocardium, where
a. Sinoatrial (SA) node the impulse is stopped.
b. Atrioventricular (AV)
node
c. Purkinje fibers
d. Bundle branches
,The cardiac electrical d. Depolarizes more rapidly than other automatic
impulse normally begins cells of the heart
spontaneously in the
sinoatrial (SA) node The electrical impulse normally begins in the SA node
because it: because its cells depolarize more rapidly than other
automatic cells.
a. Has a superior location
in the right atrium.
b. Is the only area of the
heart capable of
spontaneous
depolarization.
c. Has rich sympathetic
innervation via the vagus
nerve.
d. Depolarizes more
rapidly than other
automatic cells of the
heart
What can shorten the b. Catecholamines
conduction time of action
potential through the Catecholamines speed the heart rate, shorten the
atrioventricular (AV) conduction time through the AV node, and increase
node? the rhythmicity of the AV pacemaker fibers.
a. Parasympathetic
nervous system
b. Catecholamines
c. Vagal stimulation
d. Sinoatrial node (SA)
,If the sinoatrial (SA) node b. 40 to 60
fails, then at what rate
(depolarizations per If the SA node is damaged, then the AV node will
minute) can the become the heart's pacemaker at a rate of
atrioventricular (AV) node approximately 40 to 60 spontaneous depolarizations
depolarize? per minute.
a. 60 to 70
b. 40 to 60
c. 30 to 40
d. 10 to 20
Within a physiologic a. Increase in force of contraction
range, what does an
increase in left ventricular This concept is expressed in the Frank-Starling law;
end-diastolic volume the cardiac muscle, like other muscles, increases its
(preload) result in? strength of contraction when it is stretched.
a. Increase in force of
contraction
b. Decrease in refractory
time
c. Increase in afterload
d. Decrease in
repolarization
, As stated in the Frank- b. Volume; strength
Starling law, a direct
relationship exists As stated in the Frank-Starling law, the volume of
between the _____ of the blood in the heart at the end of diastole (the length of
blood in the heart at the its muscle fibers) is directly related to the force
end of diastole and the (strength) of contraction during the next systole.
_____ of contraction during
the next systole.
a. Pressure; force
b. Volume; strength
c. Viscosity; force
d. Viscosity; strength
What physical sign is the d. Murmur heard on auscultation
result of turbulent blood
flow through a vessel? Where flow is obstructed, the vessel turns or blood
flows over rough surfaces. The flow becomes
a. Increased blood turbulent with whorls or eddy currents that produce
pressure during periods of noise, causing a murmur to be heard on auscultation,
stress b. Bounding pulse such as occurs during blood pressure measurement
felt on palpation with a sphygomanometer.
c. Cyanosis observed on
excretion
d. Murmur heard on
auscultation
2025/2026COMPLETE QUESTION AND ANSWER
100% Guaranteed Pass
Terms in this set (154)
During the cardiac cycle, c. Purkinje fibers
which structure directly
delivers action potential Each cardiac action potential travels from the SA
to the ventricular node to the AV node to the bundle of His (AV bundle),
myocardium? through the bundle branches, and finally to the
Purkinje fibers and the ventricular myocardium, where
a. Sinoatrial (SA) node the impulse is stopped.
b. Atrioventricular (AV)
node
c. Purkinje fibers
d. Bundle branches
,The cardiac electrical d. Depolarizes more rapidly than other automatic
impulse normally begins cells of the heart
spontaneously in the
sinoatrial (SA) node The electrical impulse normally begins in the SA node
because it: because its cells depolarize more rapidly than other
automatic cells.
a. Has a superior location
in the right atrium.
b. Is the only area of the
heart capable of
spontaneous
depolarization.
c. Has rich sympathetic
innervation via the vagus
nerve.
d. Depolarizes more
rapidly than other
automatic cells of the
heart
What can shorten the b. Catecholamines
conduction time of action
potential through the Catecholamines speed the heart rate, shorten the
atrioventricular (AV) conduction time through the AV node, and increase
node? the rhythmicity of the AV pacemaker fibers.
a. Parasympathetic
nervous system
b. Catecholamines
c. Vagal stimulation
d. Sinoatrial node (SA)
,If the sinoatrial (SA) node b. 40 to 60
fails, then at what rate
(depolarizations per If the SA node is damaged, then the AV node will
minute) can the become the heart's pacemaker at a rate of
atrioventricular (AV) node approximately 40 to 60 spontaneous depolarizations
depolarize? per minute.
a. 60 to 70
b. 40 to 60
c. 30 to 40
d. 10 to 20
Within a physiologic a. Increase in force of contraction
range, what does an
increase in left ventricular This concept is expressed in the Frank-Starling law;
end-diastolic volume the cardiac muscle, like other muscles, increases its
(preload) result in? strength of contraction when it is stretched.
a. Increase in force of
contraction
b. Decrease in refractory
time
c. Increase in afterload
d. Decrease in
repolarization
, As stated in the Frank- b. Volume; strength
Starling law, a direct
relationship exists As stated in the Frank-Starling law, the volume of
between the _____ of the blood in the heart at the end of diastole (the length of
blood in the heart at the its muscle fibers) is directly related to the force
end of diastole and the (strength) of contraction during the next systole.
_____ of contraction during
the next systole.
a. Pressure; force
b. Volume; strength
c. Viscosity; force
d. Viscosity; strength
What physical sign is the d. Murmur heard on auscultation
result of turbulent blood
flow through a vessel? Where flow is obstructed, the vessel turns or blood
flows over rough surfaces. The flow becomes
a. Increased blood turbulent with whorls or eddy currents that produce
pressure during periods of noise, causing a murmur to be heard on auscultation,
stress b. Bounding pulse such as occurs during blood pressure measurement
felt on palpation with a sphygomanometer.
c. Cyanosis observed on
excretion
d. Murmur heard on
auscultation
