NR-509 APEA EXAM CARDIO QUESTION
WITH VERIFIED ANSWERS AND
RATIONALES (100% CORRECT) LATEST
UPDATE 2026\2027 QUESTIONS WITH
ANSWERS GRADED A+
Question 1:
The lymphatic ducts drain into the:
a. Arterial system.
b. Venous system.
c. Arteriovenous system.
d. Capillary bed.
RATIONALE:
The lymphatic ducts drain into the venous system.
Question 2:
,While Auscultating the patient's heart, A medium, soft
murmur is Audible. It is pansystolic And heard loudest At the
Apex with radiation to the left Axilla. These findings Are
consistent with:
a. Tricuspid regurgitation.
b. Mitral regurgitation.
c. ventricular septal defect
d. An innocent murmur. RATIONALE:
Mitral regurgitation produces A pansystolic, harsh murmur
heard loudest At the Apex with radiation toward the left
Axilla. The intensity of the murmur can be soft or if there is
An Atrial thrill, it can be loud. With tricuspid regurgitation,
the murmur is Audible loudest At the left sternal border
with radiation to the right sternal border, xiphoid Area, or to
the left midclavicular line. It produces A blowing sound And
is pansystolic. The murmur of An uncomplicated ventricular
septal defect has A high pitch And is usually heard
throughout systole. An innocent murmur is heard loudest At
mid systole near the second to fourth intercostal spaces
,between the left sternal border And the Apex. It usually
decreases or disappears when sitting.
Question 3:
Which of the following group of symptoms would be
suggestive of An infant experiencing A congenital heart
defect Associated with A decreased pulmonary blood flow
pattern?
a. Tissue perfusion greater than 3 seconds, bluish
colored skin, And poor feeding
b. Abnormal heart sounds, capillary refill less than 2
seconds, And oxygen saturation less than 95%
c. Capillary refill less than 2 seconds, tissue perfusion
less than 3 seconds, And oxygen saturation greater
than 95%
d. Poor feeding, Audible heart murmur, And oxygen
saturation greater than 95% RATIONALE:
, Infants with defects resulting from decreased pulmonary
blood flow have cyanosis because of desaturated blood
entering systemic circulation And/or because of the inability
to get blood to the lungs. Tetralogy of Fallot (TOF),
pulmonary Atresia And tricuspid Atresia All fall in this
category And Are considered cyanotic defects. Due to the
ventricular septal defect in TOF, the Absence of the tricuspid
valve or pulmonary valve in tricuspid And pulmonary
Atresia, one should hear Abnormal heart sounds either due
to the murmur in TOF or single heart sounds of S1 or S2 in
pulmonary Atresia or tricuspid Atresia. Usually these infants
have Activity intolerance And therefore, experience failure to
thrive because of their inability to consume enough formula
to gain weight Appropriately. Capillary refill is usually
prolonged due to poor oxygenation And poor perfusion
secondary to the defect As well As the O2 sats being lower
than normal, sometimes even in the 80% range.
Question 4:
WITH VERIFIED ANSWERS AND
RATIONALES (100% CORRECT) LATEST
UPDATE 2026\2027 QUESTIONS WITH
ANSWERS GRADED A+
Question 1:
The lymphatic ducts drain into the:
a. Arterial system.
b. Venous system.
c. Arteriovenous system.
d. Capillary bed.
RATIONALE:
The lymphatic ducts drain into the venous system.
Question 2:
,While Auscultating the patient's heart, A medium, soft
murmur is Audible. It is pansystolic And heard loudest At the
Apex with radiation to the left Axilla. These findings Are
consistent with:
a. Tricuspid regurgitation.
b. Mitral regurgitation.
c. ventricular septal defect
d. An innocent murmur. RATIONALE:
Mitral regurgitation produces A pansystolic, harsh murmur
heard loudest At the Apex with radiation toward the left
Axilla. The intensity of the murmur can be soft or if there is
An Atrial thrill, it can be loud. With tricuspid regurgitation,
the murmur is Audible loudest At the left sternal border
with radiation to the right sternal border, xiphoid Area, or to
the left midclavicular line. It produces A blowing sound And
is pansystolic. The murmur of An uncomplicated ventricular
septal defect has A high pitch And is usually heard
throughout systole. An innocent murmur is heard loudest At
mid systole near the second to fourth intercostal spaces
,between the left sternal border And the Apex. It usually
decreases or disappears when sitting.
Question 3:
Which of the following group of symptoms would be
suggestive of An infant experiencing A congenital heart
defect Associated with A decreased pulmonary blood flow
pattern?
a. Tissue perfusion greater than 3 seconds, bluish
colored skin, And poor feeding
b. Abnormal heart sounds, capillary refill less than 2
seconds, And oxygen saturation less than 95%
c. Capillary refill less than 2 seconds, tissue perfusion
less than 3 seconds, And oxygen saturation greater
than 95%
d. Poor feeding, Audible heart murmur, And oxygen
saturation greater than 95% RATIONALE:
, Infants with defects resulting from decreased pulmonary
blood flow have cyanosis because of desaturated blood
entering systemic circulation And/or because of the inability
to get blood to the lungs. Tetralogy of Fallot (TOF),
pulmonary Atresia And tricuspid Atresia All fall in this
category And Are considered cyanotic defects. Due to the
ventricular septal defect in TOF, the Absence of the tricuspid
valve or pulmonary valve in tricuspid And pulmonary
Atresia, one should hear Abnormal heart sounds either due
to the murmur in TOF or single heart sounds of S1 or S2 in
pulmonary Atresia or tricuspid Atresia. Usually these infants
have Activity intolerance And therefore, experience failure to
thrive because of their inability to consume enough formula
to gain weight Appropriately. Capillary refill is usually
prolonged due to poor oxygenation And poor perfusion
secondary to the defect As well As the O2 sats being lower
than normal, sometimes even in the 80% range.
Question 4:
