PERFUSSION FINAL EXAM STUDY GUIDE
NURSING CONCEPTS I — 2026–2027 UPDATED EXAM 100% (VERIFIED ANSWERS)|A+
GRADE BRAND NEW
EXAM BLUEPRINT & SYSTEM OVERVIEW: This typeset practice test bank is structured directly from the NYS
and national curriculum for advanced perfusion, cardiovascular pharmacology, and hematological nursing
systems. It covers critical perfusion assessments (MAP, cardiac output, heart sounds, diagnostic testing),
vasodilator/anticoagulant pharmacology, hypertension, heart failure, and blood transfusion safety. All questions
are formatted with detailed rationales to maximize clinical understanding and ensure a Grade A performance.
CARDIOVASCULAR BLOOD FLOW & ELECTRICAL CONDUCTION
Question 1
An APRN is explaining cardiac physiology to a graduate nursing student. Which of the following sequences
correctly traces the pathway of blood flow through the heart, starting from systemic venous return?
A. Superior/Inferior Vena Cava -> Right Atrium -> Mitral Valve -> Right Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Left Atrium -> Tricuspid Valve -> Left Ventricle -> Aorta
B. Superior/Inferior Vena Cava -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Left Atrium -> Mitral Valve -> Left Ventricle -> Aorta
C. Superior/Inferior Vena Cava -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Pulmonary Vein -> Lungs ->
Pulmonary Artery -> Left Atrium -> Mitral Valve -> Left Ventricle -> Aorta
D. Superior/Inferior Vena Cava -> Left Atrium -> Mitral Valve -> Left Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Aorta
ANSWER ■: B
Explanation: According to cardiac anatomy and blood flow principles, deoxygenated blood returns from systemic circulation
via the Superior and Inferior Vena Cavae into the Right Atrium. It then flows through the Tricuspid Valve into the Right
Ventricle, where it is pumped through the Pulmonary Artery to the lungs for gas exchange. Oxygenated blood returns via the
Pulmonary Veins into the Left Atrium, flows through the Mitral (bicuspid) Valve into the Left Ventricle, and is ejected through
the Aorta to systemic circulation. Option A and D are incorrect because they mix up the tricuspid and mitral valves. Option C
incorrectly reverses the pulmonary artery and vein.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 1
,PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 2
During cardiac auscultation, the nurse identifies the first heart sound (S1). S1 is produced by which of the
following physiological events?
A. Closure of the pulmonary and aortic valves, initiating ventricular diastole.
B. Opening of the tricuspid and mitral valves, initiating ventricular systole.
C. Closure of the tricuspid and mitral valves, initiating ventricular systole.
D. Opening of the pulmonary and aortic valves, initiating ventricular diastole.
ANSWER ■: C
Explanation: The first heart sound (S1), colloquially called "lub," is produced by the closure of the atrioventricular (AV)
valves (tricuspid and mitral valves) at the onset of ventricular contraction (systole). Closure of the pulmonary and aortic
valves produces the second heart sound (S2, "dub"), which marks the beginning of ventricular diastole. Opening of valves is
normally silent.
Question 3
A client’s electrocardiogram (EKG) shows regular sinus rhythm. The nurse understands that the P wave on the
EKG represents which of the following events?
A. Atrial depolarization, initiated by the firing of the sinoatrial (SA) node.
B. Ventricular depolarization, initiated by the firing of the AV node.
C. Atrial repolarization, initiated by the bundle of His.
D. Ventricular repolarization, initiated by the Purkinje fibers.
ANSWER ■: A
Explanation: The P wave represents atrial depolarization, which is initiated when the sinoatrial (SA) node fires, causing the
electrical impulse to spread across the atria. Ventricular depolarization is represented by the QRS complex, and ventricular
repolarization is represented by the T wave. Atrial repolarization is low voltage and buried within the larger QRS complex.
Question 4
The nurse is monitoring an EKG strip and observes a prominent U wave following the T wave. The nurse
should immediately assess the patient for clinical manifestations of which of the following electrolyte
imbalances?
A. Hypercalcemia
B. Hypokalemia
C. Hypernatremia
D. Hypophosphatemia
ANSWER ■: B
Explanation: The presence of a prominent U wave on an EKG strip is a classic electrocardiographic indicator of
hypokalemia (low serum potassium). Hypokalemia delays ventricular repolarization, which can make the Purkinje fibers'
repolarization visible as a U wave. Hypercalcemia, hypernatremia, and hypophosphatemia do not typically cause U waves.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 2
,PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 5
The nurse is reviewing an EKG and notices elevation of the ST segment in multiple leads. The nurse
understands that ST elevation is a clinical indicator of which of the following states?
A. Myocardial ischemia (reversible lack of oxygen)
B. Myocardial infarction (tissue death and injury)
C. Sinoatrial node block
D. Hypokalemia
ANSWER ■: B
Explanation: An elevated ST segment (STEMI) indicates acute myocardial injury or tissue death (infarction), signifying a
complete coronary artery occlusion requiring immediate intervention. ST segment depression, on the other hand, is
indicative of myocardial ischemia (reversible oxygen insufficiency). SA block and hypokalemia have different EKG
presentations (such as missed P waves or prominent U waves, respectively).
PHYSICAL ASSESSMENT OF PERFUSION
Question 6
A patient’s blood pressure is measured at 98/58 mmHg. What is the calculated Mean Arterial Pressure (MAP)
for this patient, and how should the nurse interpret this value?
A. 71.3 mmHg; Perfusion to tissues is adequate.
B. 58.0 mmHg; The patient is at risk for systemic tissue ischemia.
C. 78.0 mmHg; Perfusion to tissues is elevated.
D. 71.3 mmHg; The patient requires immediate fluid restriction.
ANSWER ■: A
Explanation: Mean Arterial Pressure (MAP) is calculated using the formula: MAP = [Systolic BP + 2(Diastolic BP)] / 3. For a
BP of 98/58: MAP = [98 + 2(58)] / 3 = [98 + 116] / 3 = = 71.3 mmHg. A MAP of 65 mmHg or greater is required to
maintain adequate perfusion to vital organs. Because this patient’s MAP is 71.3 mmHg, tissue perfusion is currently
adequate. A MAP less than 65 mmHg indicates ischemia.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 3
, PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 7
While performing a focused physical assessment, the nurse notes a decrease in the patient’s systolic blood
pressure by 12 mmHg during inspiration. How should the nurse document and interpret this finding?
A. Orthostatic hypotension, indicating severe volume depletion.
B. Summation gallop, indicating chronic heart failure.
C. Pulsus paradoxus, indicating potential fluid overload in the pericardial sac.
D. Pulse deficit, indicating an underlying cardiac arrhythmia.
ANSWER ■: C
Explanation: Pulsus paradoxus is defined as a decrease in systolic blood pressure of more than 10 mmHg during
inspiration. This clinical finding indicates compromised cardiac filling, which is frequently associated with fluid accumulation
or overload in the pericardial sac (such as cardiac tamponade). Orthostatic hypotension is defined by positional BP drops. A
summation gallop involves S3 and S4 sounds. A pulse deficit is the difference between apical and radial pulses.
Question 8
A patient has an extremely wide pulse pressure. The nurse understands that this assessment finding is highly
characteristic of which of the following conditions?
A. Hypovolemic shock
B. Atherosclerosis
C. Pericardial effusion
D. Mitral valve stenosis
ANSWER ■: B
Explanation: Pulse pressure is calculated as the difference between the systolic and diastolic blood pressures (Systolic -
Diastolic). A widened pulse pressure is a classic indicator of atherosclerosis, which causes a loss of arterial vessel elasticity
and stiffening. In contrast, a narrowed pulse pressure is associated with hypovolemic shock, heart failure, or pericardial
effusion.
Question 9
The nurse auscultates a third heart sound (S3), also known as a ventricular gallop, in a 68-year-old patient. The
nurse knows that an S3 is an early clinical sign of which of the following?
A. Atrial contraction into a non-compliant ventricle.
B. Atherosclerotic plaque rupture.
C. Fluid overload and heart failure.
D. Aortic valve stenosis.
ANSWER ■: C
Explanation: The third heart sound (S3) occurs in early diastole during rapid ventricular filling. It is caused by blood flowing
into an already overdistended ventricle, making it an early sign of fluid volume overload and heart failure (ventricular gallop).
S4 (atrial gallop) occurs in late diastole and is associated with atrial contraction into a non-compliant ventricle. If S3
disappears, the nurse should still re-assess later as it may return.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 4
NURSING CONCEPTS I — 2026–2027 UPDATED EXAM 100% (VERIFIED ANSWERS)|A+
GRADE BRAND NEW
EXAM BLUEPRINT & SYSTEM OVERVIEW: This typeset practice test bank is structured directly from the NYS
and national curriculum for advanced perfusion, cardiovascular pharmacology, and hematological nursing
systems. It covers critical perfusion assessments (MAP, cardiac output, heart sounds, diagnostic testing),
vasodilator/anticoagulant pharmacology, hypertension, heart failure, and blood transfusion safety. All questions
are formatted with detailed rationales to maximize clinical understanding and ensure a Grade A performance.
CARDIOVASCULAR BLOOD FLOW & ELECTRICAL CONDUCTION
Question 1
An APRN is explaining cardiac physiology to a graduate nursing student. Which of the following sequences
correctly traces the pathway of blood flow through the heart, starting from systemic venous return?
A. Superior/Inferior Vena Cava -> Right Atrium -> Mitral Valve -> Right Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Left Atrium -> Tricuspid Valve -> Left Ventricle -> Aorta
B. Superior/Inferior Vena Cava -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Left Atrium -> Mitral Valve -> Left Ventricle -> Aorta
C. Superior/Inferior Vena Cava -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Pulmonary Vein -> Lungs ->
Pulmonary Artery -> Left Atrium -> Mitral Valve -> Left Ventricle -> Aorta
D. Superior/Inferior Vena Cava -> Left Atrium -> Mitral Valve -> Left Ventricle -> Pulmonary Artery -> Lungs ->
Pulmonary Vein -> Right Atrium -> Tricuspid Valve -> Right Ventricle -> Aorta
ANSWER ■: B
Explanation: According to cardiac anatomy and blood flow principles, deoxygenated blood returns from systemic circulation
via the Superior and Inferior Vena Cavae into the Right Atrium. It then flows through the Tricuspid Valve into the Right
Ventricle, where it is pumped through the Pulmonary Artery to the lungs for gas exchange. Oxygenated blood returns via the
Pulmonary Veins into the Left Atrium, flows through the Mitral (bicuspid) Valve into the Left Ventricle, and is ejected through
the Aorta to systemic circulation. Option A and D are incorrect because they mix up the tricuspid and mitral valves. Option C
incorrectly reverses the pulmonary artery and vein.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 1
,PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 2
During cardiac auscultation, the nurse identifies the first heart sound (S1). S1 is produced by which of the
following physiological events?
A. Closure of the pulmonary and aortic valves, initiating ventricular diastole.
B. Opening of the tricuspid and mitral valves, initiating ventricular systole.
C. Closure of the tricuspid and mitral valves, initiating ventricular systole.
D. Opening of the pulmonary and aortic valves, initiating ventricular diastole.
ANSWER ■: C
Explanation: The first heart sound (S1), colloquially called "lub," is produced by the closure of the atrioventricular (AV)
valves (tricuspid and mitral valves) at the onset of ventricular contraction (systole). Closure of the pulmonary and aortic
valves produces the second heart sound (S2, "dub"), which marks the beginning of ventricular diastole. Opening of valves is
normally silent.
Question 3
A client’s electrocardiogram (EKG) shows regular sinus rhythm. The nurse understands that the P wave on the
EKG represents which of the following events?
A. Atrial depolarization, initiated by the firing of the sinoatrial (SA) node.
B. Ventricular depolarization, initiated by the firing of the AV node.
C. Atrial repolarization, initiated by the bundle of His.
D. Ventricular repolarization, initiated by the Purkinje fibers.
ANSWER ■: A
Explanation: The P wave represents atrial depolarization, which is initiated when the sinoatrial (SA) node fires, causing the
electrical impulse to spread across the atria. Ventricular depolarization is represented by the QRS complex, and ventricular
repolarization is represented by the T wave. Atrial repolarization is low voltage and buried within the larger QRS complex.
Question 4
The nurse is monitoring an EKG strip and observes a prominent U wave following the T wave. The nurse
should immediately assess the patient for clinical manifestations of which of the following electrolyte
imbalances?
A. Hypercalcemia
B. Hypokalemia
C. Hypernatremia
D. Hypophosphatemia
ANSWER ■: B
Explanation: The presence of a prominent U wave on an EKG strip is a classic electrocardiographic indicator of
hypokalemia (low serum potassium). Hypokalemia delays ventricular repolarization, which can make the Purkinje fibers'
repolarization visible as a U wave. Hypercalcemia, hypernatremia, and hypophosphatemia do not typically cause U waves.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 2
,PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 5
The nurse is reviewing an EKG and notices elevation of the ST segment in multiple leads. The nurse
understands that ST elevation is a clinical indicator of which of the following states?
A. Myocardial ischemia (reversible lack of oxygen)
B. Myocardial infarction (tissue death and injury)
C. Sinoatrial node block
D. Hypokalemia
ANSWER ■: B
Explanation: An elevated ST segment (STEMI) indicates acute myocardial injury or tissue death (infarction), signifying a
complete coronary artery occlusion requiring immediate intervention. ST segment depression, on the other hand, is
indicative of myocardial ischemia (reversible oxygen insufficiency). SA block and hypokalemia have different EKG
presentations (such as missed P waves or prominent U waves, respectively).
PHYSICAL ASSESSMENT OF PERFUSION
Question 6
A patient’s blood pressure is measured at 98/58 mmHg. What is the calculated Mean Arterial Pressure (MAP)
for this patient, and how should the nurse interpret this value?
A. 71.3 mmHg; Perfusion to tissues is adequate.
B. 58.0 mmHg; The patient is at risk for systemic tissue ischemia.
C. 78.0 mmHg; Perfusion to tissues is elevated.
D. 71.3 mmHg; The patient requires immediate fluid restriction.
ANSWER ■: A
Explanation: Mean Arterial Pressure (MAP) is calculated using the formula: MAP = [Systolic BP + 2(Diastolic BP)] / 3. For a
BP of 98/58: MAP = [98 + 2(58)] / 3 = [98 + 116] / 3 = = 71.3 mmHg. A MAP of 65 mmHg or greater is required to
maintain adequate perfusion to vital organs. Because this patient’s MAP is 71.3 mmHg, tissue perfusion is currently
adequate. A MAP less than 65 mmHg indicates ischemia.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 3
, PERFUSSION FINAL EXAM STUDY GUIDE A+ GRADE MASTER BANK
Question 7
While performing a focused physical assessment, the nurse notes a decrease in the patient’s systolic blood
pressure by 12 mmHg during inspiration. How should the nurse document and interpret this finding?
A. Orthostatic hypotension, indicating severe volume depletion.
B. Summation gallop, indicating chronic heart failure.
C. Pulsus paradoxus, indicating potential fluid overload in the pericardial sac.
D. Pulse deficit, indicating an underlying cardiac arrhythmia.
ANSWER ■: C
Explanation: Pulsus paradoxus is defined as a decrease in systolic blood pressure of more than 10 mmHg during
inspiration. This clinical finding indicates compromised cardiac filling, which is frequently associated with fluid accumulation
or overload in the pericardial sac (such as cardiac tamponade). Orthostatic hypotension is defined by positional BP drops. A
summation gallop involves S3 and S4 sounds. A pulse deficit is the difference between apical and radial pulses.
Question 8
A patient has an extremely wide pulse pressure. The nurse understands that this assessment finding is highly
characteristic of which of the following conditions?
A. Hypovolemic shock
B. Atherosclerosis
C. Pericardial effusion
D. Mitral valve stenosis
ANSWER ■: B
Explanation: Pulse pressure is calculated as the difference between the systolic and diastolic blood pressures (Systolic -
Diastolic). A widened pulse pressure is a classic indicator of atherosclerosis, which causes a loss of arterial vessel elasticity
and stiffening. In contrast, a narrowed pulse pressure is associated with hypovolemic shock, heart failure, or pericardial
effusion.
Question 9
The nurse auscultates a third heart sound (S3), also known as a ventricular gallop, in a 68-year-old patient. The
nurse knows that an S3 is an early clinical sign of which of the following?
A. Atrial contraction into a non-compliant ventricle.
B. Atherosclerotic plaque rupture.
C. Fluid overload and heart failure.
D. Aortic valve stenosis.
ANSWER ■: C
Explanation: The third heart sound (S3) occurs in early diastole during rapid ventricular filling. It is caused by blood flowing
into an already overdistended ventricle, making it an early sign of fluid volume overload and heart failure (ventricular gallop).
S4 (atrial gallop) occurs in late diastole and is associated with atrial contraction into a non-compliant ventricle. If S3
disappears, the nurse should still re-assess later as it may return.
PERFUSSION FINAL EXAM STUDY GUIDE — 2026-2027 UPDATED EXAM Page 4
