CSC (CARDIAC SURGERY CERTIFICATION) ACTUAL EXAM
2026/2027 TEST BANK PRACTICE QUESTIONS AND STUDY GUIDE
COMPLETE ACCURATE EXAM APPROVED QUESTIONS WITH
WELL ELABORATED ANSWERS AND DETAILED RATIONALES
(RELIABLE SOLUTIONS) CURRENTLY UPDATED VERSION 2026
EDITION |GUARANTEED SUCCESS A+ |FULL REVISED CSC
(CARDIAC SURGERY CERTIFICATION) APPROVED EXAM
|INSTANT DOWNLOAD PDF
A patient on cardiopulmonary bypass (CPB) during coronary artery
bypass grafting (CABG) develops dark urine in the reservoir. Which
of the following is the priority nursing intervention?
A. Increase the pump flow rate.
B. Administer mannitol as prescribed.
C. Administer sodium bicarbonate as prescribed.
D. Notify the perfusionist to check for hemolysis.
Correct Answer: C
Rationale: Dark, often "cola-colored," urine in the bypass
reservoir indicates hemolysis, leading to free hemoglobin in the
plasma. Free hemoglobin can precipitate and cause acute tubular
necrosis (ATN). The priority is to prevent renal damage. Sodium
bicarbonate is administered to alkalinize the urine, which prevents
hemoglobin casts from forming in the renal tubules. While
mannitol (B) is an osmotic diuretic used to maintain urine flow,
,the primary and immediate corrective action for preventing renal
injury from hemoglobin is urine alkalinization with sodium
bicarbonate. Option A (increasing flow) does not address the
hemoglobinuria, and option D (notification) is secondary to the
immediate patient management priority .
A nurse is assessing a patient 4 hours post-aortic valve replacement.
The patient's cardiac index (CI) is 1.8 L/min/m², and the central
venous pressure (CVP) is 16 mmHg. The patient is oliguric and
tachycardic. Which of the following is the most likely diagnosis?
A. Hypovolemic shock
B. Cardiac tamponade
C. Low cardiac output syndrome (LCOS)
D. Sepsis
Correct Answer: C
Rationale: Low cardiac output syndrome (LCOS) is defined by a
cardiac index (CI) < 2.2 L/min/m² with evidence of end-organ
hypoperfusion (e.g., oliguria, elevated lactate) and elevated filling
pressures (CVP > 12-15 mmHg). This syndrome is a common
complication after complex cardiac surgeries like valve
replacements. Hypovolemic shock would typically present with a
low CVP. Cardiac tamponade presents with Beck's triad
(hypotension, muffled heart sounds, and JVD), and while it shares
elevated CVP and hypotension, the hallmark of tamponade is not
typically a severely depressed CI in the same way. Sepsis is
characterized by vasodilation and typically a high or normal CI .
,A patient with Tetralogy of Fallot (TOF) suddenly becomes cyanotic
and agitated after crying. The nurse should immediately place the
patient in which position?
A. Supine with legs elevated
B. Left lateral decubitus position
C. Knee-to-chest position
D. High Fowler's position
Correct Answer: C
Rationale: This patient is experiencing a hypercyanotic or "tet"
spell. The knee-to-chest position is the first-line, non-
pharmacologic intervention. This position increases systemic
vascular resistance (SVR) by kinking the femoral arteries, which
decreases the right-to-left shunt through the ventricular septal
defect (VSD) and increases pulmonary blood flow, thereby
improving oxygenation. Supine with legs elevated (A) is used for
shock, but does not achieve the same degree of SVR increase. High
Fowler's (D) would decrease venous return and potentially worsen
the spell .
A patient is being evaluated for mitral stenosis. The patient reports
hemoptysis. What is the underlying pathophysiology for this
symptom?
A. Erosion of the pulmonary artery due to severe pulmonary
hypertension.
, B. Rupture of bronchial veins due to elevated left atrial and
pulmonary venous pressure.
C. Left atrial thrombus dislodging into the pulmonary circulation.
D. High-pressure gradient across the mitral valve causing direct
capillary damage.
Correct Answer: B
Rationale: Hemoptysis in mitral stenosis is a classic symptom
caused by the rupture of bronchial veins. The elevated left atrial
pressure is transmitted backward to the pulmonary veins, which
have anastomoses with the bronchial veins. When these thin-
walled veins rupture under the increased pressure, it results in
hemoptysis. This is a sign of pulmonary venous hypertension, not
necessarily severe pulmonary arterial hypertension. Options A, C,
and D are less accurate descriptions of the specific
pathophysiologic mechanism .
Which of the following is the most common congenital heart defect?
A. Atrial Septal Defect (ASD)
B. Ventricular Septal Defect (VSD)
C. Patent Ductus Arteriosus (PDA)
D. Tetralogy of Fallot (TOF)
Correct Answer: B
Rationale: Ventricular Septal Defect (VSD) is the most common
congenital heart defect, accounting for approximately 20-30% of
2026/2027 TEST BANK PRACTICE QUESTIONS AND STUDY GUIDE
COMPLETE ACCURATE EXAM APPROVED QUESTIONS WITH
WELL ELABORATED ANSWERS AND DETAILED RATIONALES
(RELIABLE SOLUTIONS) CURRENTLY UPDATED VERSION 2026
EDITION |GUARANTEED SUCCESS A+ |FULL REVISED CSC
(CARDIAC SURGERY CERTIFICATION) APPROVED EXAM
|INSTANT DOWNLOAD PDF
A patient on cardiopulmonary bypass (CPB) during coronary artery
bypass grafting (CABG) develops dark urine in the reservoir. Which
of the following is the priority nursing intervention?
A. Increase the pump flow rate.
B. Administer mannitol as prescribed.
C. Administer sodium bicarbonate as prescribed.
D. Notify the perfusionist to check for hemolysis.
Correct Answer: C
Rationale: Dark, often "cola-colored," urine in the bypass
reservoir indicates hemolysis, leading to free hemoglobin in the
plasma. Free hemoglobin can precipitate and cause acute tubular
necrosis (ATN). The priority is to prevent renal damage. Sodium
bicarbonate is administered to alkalinize the urine, which prevents
hemoglobin casts from forming in the renal tubules. While
mannitol (B) is an osmotic diuretic used to maintain urine flow,
,the primary and immediate corrective action for preventing renal
injury from hemoglobin is urine alkalinization with sodium
bicarbonate. Option A (increasing flow) does not address the
hemoglobinuria, and option D (notification) is secondary to the
immediate patient management priority .
A nurse is assessing a patient 4 hours post-aortic valve replacement.
The patient's cardiac index (CI) is 1.8 L/min/m², and the central
venous pressure (CVP) is 16 mmHg. The patient is oliguric and
tachycardic. Which of the following is the most likely diagnosis?
A. Hypovolemic shock
B. Cardiac tamponade
C. Low cardiac output syndrome (LCOS)
D. Sepsis
Correct Answer: C
Rationale: Low cardiac output syndrome (LCOS) is defined by a
cardiac index (CI) < 2.2 L/min/m² with evidence of end-organ
hypoperfusion (e.g., oliguria, elevated lactate) and elevated filling
pressures (CVP > 12-15 mmHg). This syndrome is a common
complication after complex cardiac surgeries like valve
replacements. Hypovolemic shock would typically present with a
low CVP. Cardiac tamponade presents with Beck's triad
(hypotension, muffled heart sounds, and JVD), and while it shares
elevated CVP and hypotension, the hallmark of tamponade is not
typically a severely depressed CI in the same way. Sepsis is
characterized by vasodilation and typically a high or normal CI .
,A patient with Tetralogy of Fallot (TOF) suddenly becomes cyanotic
and agitated after crying. The nurse should immediately place the
patient in which position?
A. Supine with legs elevated
B. Left lateral decubitus position
C. Knee-to-chest position
D. High Fowler's position
Correct Answer: C
Rationale: This patient is experiencing a hypercyanotic or "tet"
spell. The knee-to-chest position is the first-line, non-
pharmacologic intervention. This position increases systemic
vascular resistance (SVR) by kinking the femoral arteries, which
decreases the right-to-left shunt through the ventricular septal
defect (VSD) and increases pulmonary blood flow, thereby
improving oxygenation. Supine with legs elevated (A) is used for
shock, but does not achieve the same degree of SVR increase. High
Fowler's (D) would decrease venous return and potentially worsen
the spell .
A patient is being evaluated for mitral stenosis. The patient reports
hemoptysis. What is the underlying pathophysiology for this
symptom?
A. Erosion of the pulmonary artery due to severe pulmonary
hypertension.
, B. Rupture of bronchial veins due to elevated left atrial and
pulmonary venous pressure.
C. Left atrial thrombus dislodging into the pulmonary circulation.
D. High-pressure gradient across the mitral valve causing direct
capillary damage.
Correct Answer: B
Rationale: Hemoptysis in mitral stenosis is a classic symptom
caused by the rupture of bronchial veins. The elevated left atrial
pressure is transmitted backward to the pulmonary veins, which
have anastomoses with the bronchial veins. When these thin-
walled veins rupture under the increased pressure, it results in
hemoptysis. This is a sign of pulmonary venous hypertension, not
necessarily severe pulmonary arterial hypertension. Options A, C,
and D are less accurate descriptions of the specific
pathophysiologic mechanism .
Which of the following is the most common congenital heart defect?
A. Atrial Septal Defect (ASD)
B. Ventricular Septal Defect (VSD)
C. Patent Ductus Arteriosus (PDA)
D. Tetralogy of Fallot (TOF)
Correct Answer: B
Rationale: Ventricular Septal Defect (VSD) is the most common
congenital heart defect, accounting for approximately 20-30% of
