NUR 505 COMPREHENSIVE EXAMINATION
TEST VERIFIED QUESTIONS AND
ACCURATE ANSWERS
●● Mitral Valve
Answer: Located between the left atrium and left ventricle. Opens
during diastole and closes during systole to prevent blood from flowing
back into the left atrium.
●● Pulmonic Valve
Answer: Semilunar valve located between the right ventricle and
pulmonary artery. Opens during systole to allow blood flow into the
pulmonary artery and closes during diastole.
●● Aortic Valve
Answer: Semilunar valve located between the left ventricle and aorta.
Opens during systole and closes during diastole.
●● Order of Cardiac Valves
Answer: Tricuspid → Pulmonic → Mitral → Aortic.
●● Systole
,Answer: Phase of the cardiac cycle during which the ventricles contract
and eject blood into the aorta and pulmonary artery.
●● Diastole
Answer: Phase during which the ventricles relax and fill with blood from
the atria.
●● S1
Answer: First heart sound ('lub') caused by closure of the mitral and
tricuspid valves at the beginning of systole.
●● S2
Answer: Second heart sound ('dub') caused by closure of the aortic and
pulmonic valves.
●● A2
Answer: Aortic valve component of S2.
●● P2
Answer: Pulmonic valve component of S2.
●● Split S2
Answer: Audible separation of A2 and P2.
,●● S3
Answer: Third heart sound occurring during rapid ventricular filling in
early diastole.
●● S4
Answer: Fourth heart sound occurring during atrial contraction near the
end of diastole.
●● Apical Impulse
Answer: Visible or palpable impulse produced by left ventricular
contraction. Usually located in the fifth left intercostal space at the
midclavicular line.
●● PMI (Point of Maximal Impulse)
Answer: Point where the apical impulse is most strongly felt, normally
at the fifth left intercostal space, midclavicular line.
●● Hyperdynamic PMI
Answer: PMI that is more vigorous than expected.
●● Thrill
Answer: Palpable vibration felt over the precordium.
, ●● Sinoatrial (SA) Node
Answer: Natural pacemaker located in the wall of the right atrium.
●● Atrioventricular (AV) Node
Answer: Located in the atrial septum. Receives impulses from the atria
and delays transmission before sending impulses to the ventricles.
●● Bundle of His
Answer: Conducting pathway carrying impulses from the AV node to the
ventricles.
●● Purkinje Fibers
Answer: Specialized ventricular conduction fibers.
●● P Wave
Answer: Atrial depolarization.
●● PR Interval
Answer: Time from initial atrial stimulation to initial ventricular
stimulation; normally 0.12-0.20 seconds.
●● QRS Complex
TEST VERIFIED QUESTIONS AND
ACCURATE ANSWERS
●● Mitral Valve
Answer: Located between the left atrium and left ventricle. Opens
during diastole and closes during systole to prevent blood from flowing
back into the left atrium.
●● Pulmonic Valve
Answer: Semilunar valve located between the right ventricle and
pulmonary artery. Opens during systole to allow blood flow into the
pulmonary artery and closes during diastole.
●● Aortic Valve
Answer: Semilunar valve located between the left ventricle and aorta.
Opens during systole and closes during diastole.
●● Order of Cardiac Valves
Answer: Tricuspid → Pulmonic → Mitral → Aortic.
●● Systole
,Answer: Phase of the cardiac cycle during which the ventricles contract
and eject blood into the aorta and pulmonary artery.
●● Diastole
Answer: Phase during which the ventricles relax and fill with blood from
the atria.
●● S1
Answer: First heart sound ('lub') caused by closure of the mitral and
tricuspid valves at the beginning of systole.
●● S2
Answer: Second heart sound ('dub') caused by closure of the aortic and
pulmonic valves.
●● A2
Answer: Aortic valve component of S2.
●● P2
Answer: Pulmonic valve component of S2.
●● Split S2
Answer: Audible separation of A2 and P2.
,●● S3
Answer: Third heart sound occurring during rapid ventricular filling in
early diastole.
●● S4
Answer: Fourth heart sound occurring during atrial contraction near the
end of diastole.
●● Apical Impulse
Answer: Visible or palpable impulse produced by left ventricular
contraction. Usually located in the fifth left intercostal space at the
midclavicular line.
●● PMI (Point of Maximal Impulse)
Answer: Point where the apical impulse is most strongly felt, normally
at the fifth left intercostal space, midclavicular line.
●● Hyperdynamic PMI
Answer: PMI that is more vigorous than expected.
●● Thrill
Answer: Palpable vibration felt over the precordium.
, ●● Sinoatrial (SA) Node
Answer: Natural pacemaker located in the wall of the right atrium.
●● Atrioventricular (AV) Node
Answer: Located in the atrial septum. Receives impulses from the atria
and delays transmission before sending impulses to the ventricles.
●● Bundle of His
Answer: Conducting pathway carrying impulses from the AV node to the
ventricles.
●● Purkinje Fibers
Answer: Specialized ventricular conduction fibers.
●● P Wave
Answer: Atrial depolarization.
●● PR Interval
Answer: Time from initial atrial stimulation to initial ventricular
stimulation; normally 0.12-0.20 seconds.
●● QRS Complex
