NR 507 — ADVANCED PATHOPHYSIOLOGY
WEEK 4 MIDTERM • PREMIUM ORIGINAL EXAM-PREP STUDY GUIDE
Cardiovascular • Hematology • Immunology • Respiratory • Renal • Infection • Cancer • Genetics & Stress
Source note: The referenced Stuvia listing is a 49-page document from the 2019/2020 academic year and its public preview
displays a sequence of midterm questions across these pathophysiology domains. This resource is independently written
from those visible topic cues; it does not reproduce the paid/locked document and does not claim to contain actual, leaked,
recalled, or verified Chamberlain examination questions.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 1
, CARDIOVASCULAR PATHOPHYSIOLOGY
Question: Which physical finding is most directly associated with turbulent blood flow through a
vessel or heart valve?
A. Murmur or bruit on auscultation
B. Cyanosis alone
C. Hyperthermia
D. Clubbing of the fingers
Correct Answer: A. Murmur or bruit on auscultation
Rationale: Turbulent flow creates audible vibrations that may be heard as a murmur over a heart valve or a bruit over a
vessel. Turbulence is promoted by obstruction, abnormal vessel geometry, increased velocity, or altered viscosity.
Exam Focus: Exam trap: A murmur is a physical finding, not itself a diagnosis. Determine the underlying structural or
hemodynamic cause.
Question: Where are the coronary ostia located?
A. In the root of the aorta
B. In the left ventricle
C. In the coronary sinus
D. In the pulmonary artery
Correct Answer: A. In the root of the aorta
Rationale: The coronary ostia are openings in the ascending aorta, just above the aortic valve, through which the right and
left coronary arteries arise.
Exam Focus: Memory aid: Aorta → ostia → coronary arteries.
Question: Which ECG complex represents ventricular depolarization?
A. P wave
B. QRS complex
C. T wave
D. PR interval
Correct Answer: B. QRS complex
Rationale: The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T
wave represents ventricular repolarization.
Exam Focus: Exam trap: Ventricular repolarization is the T wave, not the QRS.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 2
, Question: If the sinoatrial node fails, which intrinsic pacemaker rate is generally associated with the
atrioventricular junction?
A. 10–20 beats/min
B. 40–60 beats/min
C. 80–100 beats/min
D. 120–140 beats/min
Correct Answer: B. 40–60 beats/min
Rationale: The SA node normally sets the fastest intrinsic rhythm. If it fails, the AV junction can assume pacemaker activity
at a slower intrinsic rate, commonly around 40–60 beats/min.
Exam Focus: Clinical pearl: The lower the backup pacemaker, the slower the escape rhythm tends to be.
Question: What is the primary effect of natriuretic peptides during ventricular volume/pressure
overload?
A. Promote sodium and water excretion and oppose renin-angiotensin-aldosterone activity
B. Increase aldosterone secretion
C. Increase sodium retention
D. Stimulate vasoconstriction
Correct Answer: A. Promote sodium and water excretion and oppose renin-angiotensin-aldosterone activity
Rationale: ANP and BNP are released in response to cardiac chamber stretch. They promote natriuresis and vasodilation
and counter-regulate RAAS and sympathetic effects.
Exam Focus: Exam tip: Natriuretic peptides are compensatory mechanisms that attempt to reduce preload and congestion.
HEMATOLOGY & ERYTHROCYTE DISORDERS
Question: Which anemia is associated with inflammation, shortened erythrocyte survival and impaired
iron utilization?
A. Anemia of chronic disease/inflammation
B. Acute blood loss only
C. Hereditary spherocytosis
D. Thalassemia only
Correct Answer: A. Anemia of chronic disease/inflammation
Rationale: Inflammatory cytokines increase hepcidin and reduce iron availability for erythropoiesis. Iron may be present in
storage sites but is less available for developing erythrocytes.
Exam Focus: Exam trap: Low serum iron does not automatically mean absolute iron deficiency.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 3
WEEK 4 MIDTERM • PREMIUM ORIGINAL EXAM-PREP STUDY GUIDE
Cardiovascular • Hematology • Immunology • Respiratory • Renal • Infection • Cancer • Genetics & Stress
Source note: The referenced Stuvia listing is a 49-page document from the 2019/2020 academic year and its public preview
displays a sequence of midterm questions across these pathophysiology domains. This resource is independently written
from those visible topic cues; it does not reproduce the paid/locked document and does not claim to contain actual, leaked,
recalled, or verified Chamberlain examination questions.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 1
, CARDIOVASCULAR PATHOPHYSIOLOGY
Question: Which physical finding is most directly associated with turbulent blood flow through a
vessel or heart valve?
A. Murmur or bruit on auscultation
B. Cyanosis alone
C. Hyperthermia
D. Clubbing of the fingers
Correct Answer: A. Murmur or bruit on auscultation
Rationale: Turbulent flow creates audible vibrations that may be heard as a murmur over a heart valve or a bruit over a
vessel. Turbulence is promoted by obstruction, abnormal vessel geometry, increased velocity, or altered viscosity.
Exam Focus: Exam trap: A murmur is a physical finding, not itself a diagnosis. Determine the underlying structural or
hemodynamic cause.
Question: Where are the coronary ostia located?
A. In the root of the aorta
B. In the left ventricle
C. In the coronary sinus
D. In the pulmonary artery
Correct Answer: A. In the root of the aorta
Rationale: The coronary ostia are openings in the ascending aorta, just above the aortic valve, through which the right and
left coronary arteries arise.
Exam Focus: Memory aid: Aorta → ostia → coronary arteries.
Question: Which ECG complex represents ventricular depolarization?
A. P wave
B. QRS complex
C. T wave
D. PR interval
Correct Answer: B. QRS complex
Rationale: The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T
wave represents ventricular repolarization.
Exam Focus: Exam trap: Ventricular repolarization is the T wave, not the QRS.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 2
, Question: If the sinoatrial node fails, which intrinsic pacemaker rate is generally associated with the
atrioventricular junction?
A. 10–20 beats/min
B. 40–60 beats/min
C. 80–100 beats/min
D. 120–140 beats/min
Correct Answer: B. 40–60 beats/min
Rationale: The SA node normally sets the fastest intrinsic rhythm. If it fails, the AV junction can assume pacemaker activity
at a slower intrinsic rate, commonly around 40–60 beats/min.
Exam Focus: Clinical pearl: The lower the backup pacemaker, the slower the escape rhythm tends to be.
Question: What is the primary effect of natriuretic peptides during ventricular volume/pressure
overload?
A. Promote sodium and water excretion and oppose renin-angiotensin-aldosterone activity
B. Increase aldosterone secretion
C. Increase sodium retention
D. Stimulate vasoconstriction
Correct Answer: A. Promote sodium and water excretion and oppose renin-angiotensin-aldosterone activity
Rationale: ANP and BNP are released in response to cardiac chamber stretch. They promote natriuresis and vasodilation
and counter-regulate RAAS and sympathetic effects.
Exam Focus: Exam tip: Natriuretic peptides are compensatory mechanisms that attempt to reduce preload and congestion.
HEMATOLOGY & ERYTHROCYTE DISORDERS
Question: Which anemia is associated with inflammation, shortened erythrocyte survival and impaired
iron utilization?
A. Anemia of chronic disease/inflammation
B. Acute blood loss only
C. Hereditary spherocytosis
D. Thalassemia only
Correct Answer: A. Anemia of chronic disease/inflammation
Rationale: Inflammatory cytokines increase hepcidin and reduce iron availability for erythropoiesis. Iron may be present in
storage sites but is less available for developing erythrocytes.
Exam Focus: Exam trap: Low serum iron does not automatically mean absolute iron deficiency.
NR 507 — Independent Advanced Pathophysiology Study Resource Page 3
