NSG 229 Practice Test 3 Questions
with Guaranteed Pass Solutions 2025-
2026 Updated.
action potential
when the action potential reaches a conduction point, if it isn't working, the action simply
moves on to the next place, still follows the plan - Answer electrical impulse
cardiac output - Answer the amount of blood ejected from each ventricle every minute
stroke volxHR=
if Heart is beating 100bpm, multiple stroke vol by 100.
stroke volume - Answer the amount of blood ejected from each ventricle each beat
depolarization - Answer contraction "squeezing"
occurs during systole; blood is ejected and chamber empties
Repolarization - Answer relaxation
occurs during diastole; blood returns and chamber fills
SA node
can take out this part and the heart will still work; with meds/therapy/procedures. - Answer
conduction begins at the ____. "the pacemaker of the heart" the arrival of the action potential
should cause the atrium to contract.
this contraction is represented as the P wave.
P wave
,AV node - Answer the action potential moves from SA node to the ____, causing another
depolarization (squeeze). This helps completely empty the atrium.
P wave and the beginning of the QRS complex
known as the PR interval - Answer there is a conduction delay through the AV node. this
accounts for the pause between the ___ and the beginning of the ______.
PR interval - Answer tells us how long it takes for the action potential to move through the
atrium from beginning to end. "delay"
Systolic
measured from the R wave through the T wave - Answer the pressure inside the vessels
during the activity, the firing of SA node, the depolarization & repolarization of the atrium, that
pressure is the ____ number.
Diastolic
more concerned if this number is higher - Answer ____ pressure is measured between beats,
when the heart is resting. it represents atrial depolarization (squeeze and empty) and the
beginning of atrial reploarization (rest and refill)
Bundle of His - Answer once the action potential has moved through the AV node it moves
through the ______, which eventually splits and becomes the Left Bundle Branch and the Right
Bundle Branch.
ears nose fingers toes & hose (penis)
causes vasoconstriction = necrosis - Answer where are the places you cant put epinephrine?
Right - Answer ____ sided HF causes edema
Left - Answer ____ sided HF causes cyanosis and confusion (mentating) because you are not
,R segment - Answer the action potential reaching the L&R bundle branches is represented by
the:
you will not see an R wave; will not have strong ventricle squeeze - Answer How would the
EKG look if there was trouble at the Bundle of His?
Sodium, Potassium, Magnesium - Answer electrolytes involved in heart contractility
Purkinje Fibers
this area is the last chance for the action potential to move blood from that ventricle. - Answer
the action potential moved through the atrium, to the Bundle of His and through the L&R
Bundle branches. the next stop is:
S segment - Answer the action potential depolarizing the Purkinje Fibers is represented on
the EKG as the:
QRS complex - Answer represents the action potential moving through the ventricles.
represents ventricular depolarization (squeeze) and we know the greater the squeeze, the
greater the stroke volume and the greater the cardiac output.
resting, refilling, repolarizing - Answer if the action potential is in the ventricles then it isn't
in the atrium, which means the atrium is:
T wave - Answer ventricular repolarization (resting & refilling) is represented on the EKG by:
T wave & P wave - Answer the time it takes the action potential to move from the Purkinje
Fibers back to the Atrium is represented on the EKG by the:
blood pressure - Answer how do we measure the quality of depolarization (squeeze) ?
Left and Right Bundle Branches - Answer the pressure is greatest when the action potential
, -AV node is repolarizing
-Bundle of His is repolarizing
-SA node has depolarized and repolarized and is ready for another action potential
-Purkinje Fibers on ready for depolarization
S1 sound "lub" - Answer _____ is associated with closure of the tricuspid and mitral valves,
we know the depolarization of the SA node opens the valve and the depolarization of the
atrium.
also signals the beginning of Systole, because this is when pressure is greatest
R segment
at this point, the conduction pathway in the atrium is empty and the ventricles have filled. the
valves close to prevent regurgitation back into the atrium. - Answer where on the EKG would
you expect to hear S1?
in other words, during what portion of the action potential do the tricuspid and mitral valves
close?
S2 sound "dub" - Answer associated with the closure of the aortic and pulmonic valves and
signals the beginning of diastole.
can be heard following the T wave, when everything has depolarized and chambers are empty
preload - Answer the amount of blood left in the ventricle after depolarization "squeeze"
(also the same time diastole ends)
-minimal pressure
-should be minimal blood volume
determines the amount of stretch paced on the myocardial fibers
increased= HYPERtension, aortic valve disease, HYPERvolemia
decreased= HYPOtension, HYPOvolemia
with Guaranteed Pass Solutions 2025-
2026 Updated.
action potential
when the action potential reaches a conduction point, if it isn't working, the action simply
moves on to the next place, still follows the plan - Answer electrical impulse
cardiac output - Answer the amount of blood ejected from each ventricle every minute
stroke volxHR=
if Heart is beating 100bpm, multiple stroke vol by 100.
stroke volume - Answer the amount of blood ejected from each ventricle each beat
depolarization - Answer contraction "squeezing"
occurs during systole; blood is ejected and chamber empties
Repolarization - Answer relaxation
occurs during diastole; blood returns and chamber fills
SA node
can take out this part and the heart will still work; with meds/therapy/procedures. - Answer
conduction begins at the ____. "the pacemaker of the heart" the arrival of the action potential
should cause the atrium to contract.
this contraction is represented as the P wave.
P wave
,AV node - Answer the action potential moves from SA node to the ____, causing another
depolarization (squeeze). This helps completely empty the atrium.
P wave and the beginning of the QRS complex
known as the PR interval - Answer there is a conduction delay through the AV node. this
accounts for the pause between the ___ and the beginning of the ______.
PR interval - Answer tells us how long it takes for the action potential to move through the
atrium from beginning to end. "delay"
Systolic
measured from the R wave through the T wave - Answer the pressure inside the vessels
during the activity, the firing of SA node, the depolarization & repolarization of the atrium, that
pressure is the ____ number.
Diastolic
more concerned if this number is higher - Answer ____ pressure is measured between beats,
when the heart is resting. it represents atrial depolarization (squeeze and empty) and the
beginning of atrial reploarization (rest and refill)
Bundle of His - Answer once the action potential has moved through the AV node it moves
through the ______, which eventually splits and becomes the Left Bundle Branch and the Right
Bundle Branch.
ears nose fingers toes & hose (penis)
causes vasoconstriction = necrosis - Answer where are the places you cant put epinephrine?
Right - Answer ____ sided HF causes edema
Left - Answer ____ sided HF causes cyanosis and confusion (mentating) because you are not
,R segment - Answer the action potential reaching the L&R bundle branches is represented by
the:
you will not see an R wave; will not have strong ventricle squeeze - Answer How would the
EKG look if there was trouble at the Bundle of His?
Sodium, Potassium, Magnesium - Answer electrolytes involved in heart contractility
Purkinje Fibers
this area is the last chance for the action potential to move blood from that ventricle. - Answer
the action potential moved through the atrium, to the Bundle of His and through the L&R
Bundle branches. the next stop is:
S segment - Answer the action potential depolarizing the Purkinje Fibers is represented on
the EKG as the:
QRS complex - Answer represents the action potential moving through the ventricles.
represents ventricular depolarization (squeeze) and we know the greater the squeeze, the
greater the stroke volume and the greater the cardiac output.
resting, refilling, repolarizing - Answer if the action potential is in the ventricles then it isn't
in the atrium, which means the atrium is:
T wave - Answer ventricular repolarization (resting & refilling) is represented on the EKG by:
T wave & P wave - Answer the time it takes the action potential to move from the Purkinje
Fibers back to the Atrium is represented on the EKG by the:
blood pressure - Answer how do we measure the quality of depolarization (squeeze) ?
Left and Right Bundle Branches - Answer the pressure is greatest when the action potential
, -AV node is repolarizing
-Bundle of His is repolarizing
-SA node has depolarized and repolarized and is ready for another action potential
-Purkinje Fibers on ready for depolarization
S1 sound "lub" - Answer _____ is associated with closure of the tricuspid and mitral valves,
we know the depolarization of the SA node opens the valve and the depolarization of the
atrium.
also signals the beginning of Systole, because this is when pressure is greatest
R segment
at this point, the conduction pathway in the atrium is empty and the ventricles have filled. the
valves close to prevent regurgitation back into the atrium. - Answer where on the EKG would
you expect to hear S1?
in other words, during what portion of the action potential do the tricuspid and mitral valves
close?
S2 sound "dub" - Answer associated with the closure of the aortic and pulmonic valves and
signals the beginning of diastole.
can be heard following the T wave, when everything has depolarized and chambers are empty
preload - Answer the amount of blood left in the ventricle after depolarization "squeeze"
(also the same time diastole ends)
-minimal pressure
-should be minimal blood volume
determines the amount of stretch paced on the myocardial fibers
increased= HYPERtension, aortic valve disease, HYPERvolemia
decreased= HYPOtension, HYPOvolemia
