NSG 3280 PATHOPHYSIOLOGY EXAM 4 | GALEN COLLEGE OF NURSING COMPLETE
PRACTICE EXAM QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS |
COMPREHENSIVE STUDY GUIDE | UPDATED 2026/2027 EDITION
Examiner/Administrator: Galen College of Nursing
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
NSG 3280 PATHOPHYSIOLOGY EXAM 4
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
100+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Hematologic Disorders
2. Immune System Dysfunction
3. Autoimmune Diseases
4. Infectious Disease Pathophysiology
5. Endocrine Disorders
6. Adrenal and Pituitary Disorders
7. Diabetes Mellitus
8. Thyroid Disorders
9. Multisystem Pathophysiology
10. Clinical Application and Case Analysis
GALEN COLLEGE OF NURSING || ALIGNED WITH CURRENT PATHOPHYSIOLOGY
COURSE BLUEPRINTS || PROFESSIONAL NURSING STUDY GUIDE || COMPREHENSIVE
EXAM PREPARATION || VERIFIED ACADEMIC CONTENT || CLINICAL REASONING
,FOCUSED || PREPARED FOR NURSING EDUCATION USE || UPDATED 2026/2027
EDITION
Hematologic Disorders (Questions 1–8)
Q1. A 68-year-old patient with chronic gastrointestinal bleeding presents with fatigue,
pallor, and dyspnea on exertion. Laboratory studies reveal microcytic, hypochromic
erythrocytes. Which pathophysiologic process best explains these findings?
A. Impaired DNA synthesis causing megaloblastic changes
B. Iron deficiency resulting in decreased hemoglobin production
C. Increased erythropoietin production causing polycythemia
D. Autoimmune destruction of mature erythrocytes
Correct Answer: 🔴 B. Iron deficiency resulting in decreased hemoglobin production
Explanation: 🔹 Iron deficiency impairs hemoglobin synthesis, producing microcytic,
hypochromic red blood cells. Chronic blood loss is a common cause. Megaloblastic
anemia (A) produces macrocytic cells. Polycythemia (C) increases red cell mass rather
than causing anemia. Autoimmune hemolysis (D) typically causes normocytic
anemia with evidence of red cell destruction.
Q2. A patient with vitamin B12 deficiency develops neurologic manifestations
including paresthesias and gait disturbances. The neurologic symptoms occur because
vitamin B12 is essential for:
A. Iron absorption in the duodenum
B. Myelin maintenance within the nervous system
C. Platelet aggregation
D. Erythropoietin production
Correct Answer: 🔴 B. Myelin maintenance within the nervous system
Explanation: 🔹 Vitamin B12 is necessary for DNA synthesis and maintenance of
myelin integrity. Deficiency causes both megaloblastic anemia and neurologic
dysfunction. Iron absorption (A), platelet aggregation (C), and erythropoietin
production (D) are not the primary mechanisms involved.
,Q3. A patient with sickle cell disease develops acute pain after dehydration. Which
mechanism contributes most directly to vaso-occlusive crises?
A. Excess platelet production
B. Polymerization of abnormal hemoglobin S during hypoxia
C. Excessive iron deposition in tissues
D. Increased vitamin K activity
Correct Answer: 🔴 B. Polymerization of abnormal hemoglobin S during hypoxia
Explanation: 🔹 Hemoglobin S polymerizes under conditions such as hypoxia and
dehydration, causing red blood cells to become rigid and sickle-shaped. These cells
obstruct microcirculation, resulting in ischemia and severe pain. The other options do
not represent the primary pathophysiology of sickle cell disease.
Q4. A patient diagnosed with aplastic anemia demonstrates pancytopenia. Which
finding is most consistent with this diagnosis?
A. Bone marrow failure leading to decreased blood cell production
B. Increased destruction of platelets only
C. Excessive erythropoietin secretion
D. Elevated leukocyte production
Correct Answer: 🔴 A. Bone marrow failure leading to decreased blood cell
production
Explanation: 🔹 Aplastic anemia results from bone marrow suppression or failure,
causing reductions in red cells, white cells, and platelets. Pancytopenia is a hallmark
finding. The remaining options affect only specific cell lines or describe opposite
processes.
Q5. Which laboratory finding is most characteristic of hemolytic anemia?
A. Elevated bilirubin levels
B. Decreased reticulocyte count
, C. Increased platelet count
D. Reduced lactate dehydrogenase levels
Correct Answer: 🔴 A. Elevated bilirubin levels
Explanation: 🔹 Hemolysis releases hemoglobin, which is metabolized into bilirubin.
Elevated bilirubin and LDH levels are common findings. Reticulocyte counts usually
increase as the bone marrow compensates. Platelet count changes are not primary
features.
Q6. A nurse reviews laboratory results showing prolonged bleeding time with normal
clotting factor studies. Which disorder is most likely?
A. Hemophilia A
B. von Willebrand disease
C. Disseminated intravascular coagulation
D. Polycythemia vera
Correct Answer: 🔴 B. von Willebrand disease
Explanation: 🔹 von Willebrand disease affects platelet adhesion and may prolong
bleeding time despite relatively normal coagulation studies. Hemophilia primarily
affects clotting factors. DIC causes widespread coagulation abnormalities, while
polycythemia involves increased red cell mass.
Q7. A patient with leukemia develops recurrent infections. The primary reason is:
A. Increased red blood cell destruction
B. Functional impairment of leukocytes
C. Excess insulin secretion
D. Increased thyroid hormone production
Correct Answer: 🔴 B. Functional impairment of leukocytes
Explanation: 🔹 Leukemia often produces large numbers of abnormal leukocytes that
lack effective immune function. Consequently, infection risk increases despite
PRACTICE EXAM QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS |
COMPREHENSIVE STUDY GUIDE | UPDATED 2026/2027 EDITION
Examiner/Administrator: Galen College of Nursing
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
NSG 3280 PATHOPHYSIOLOGY EXAM 4
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
100+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Hematologic Disorders
2. Immune System Dysfunction
3. Autoimmune Diseases
4. Infectious Disease Pathophysiology
5. Endocrine Disorders
6. Adrenal and Pituitary Disorders
7. Diabetes Mellitus
8. Thyroid Disorders
9. Multisystem Pathophysiology
10. Clinical Application and Case Analysis
GALEN COLLEGE OF NURSING || ALIGNED WITH CURRENT PATHOPHYSIOLOGY
COURSE BLUEPRINTS || PROFESSIONAL NURSING STUDY GUIDE || COMPREHENSIVE
EXAM PREPARATION || VERIFIED ACADEMIC CONTENT || CLINICAL REASONING
,FOCUSED || PREPARED FOR NURSING EDUCATION USE || UPDATED 2026/2027
EDITION
Hematologic Disorders (Questions 1–8)
Q1. A 68-year-old patient with chronic gastrointestinal bleeding presents with fatigue,
pallor, and dyspnea on exertion. Laboratory studies reveal microcytic, hypochromic
erythrocytes. Which pathophysiologic process best explains these findings?
A. Impaired DNA synthesis causing megaloblastic changes
B. Iron deficiency resulting in decreased hemoglobin production
C. Increased erythropoietin production causing polycythemia
D. Autoimmune destruction of mature erythrocytes
Correct Answer: 🔴 B. Iron deficiency resulting in decreased hemoglobin production
Explanation: 🔹 Iron deficiency impairs hemoglobin synthesis, producing microcytic,
hypochromic red blood cells. Chronic blood loss is a common cause. Megaloblastic
anemia (A) produces macrocytic cells. Polycythemia (C) increases red cell mass rather
than causing anemia. Autoimmune hemolysis (D) typically causes normocytic
anemia with evidence of red cell destruction.
Q2. A patient with vitamin B12 deficiency develops neurologic manifestations
including paresthesias and gait disturbances. The neurologic symptoms occur because
vitamin B12 is essential for:
A. Iron absorption in the duodenum
B. Myelin maintenance within the nervous system
C. Platelet aggregation
D. Erythropoietin production
Correct Answer: 🔴 B. Myelin maintenance within the nervous system
Explanation: 🔹 Vitamin B12 is necessary for DNA synthesis and maintenance of
myelin integrity. Deficiency causes both megaloblastic anemia and neurologic
dysfunction. Iron absorption (A), platelet aggregation (C), and erythropoietin
production (D) are not the primary mechanisms involved.
,Q3. A patient with sickle cell disease develops acute pain after dehydration. Which
mechanism contributes most directly to vaso-occlusive crises?
A. Excess platelet production
B. Polymerization of abnormal hemoglobin S during hypoxia
C. Excessive iron deposition in tissues
D. Increased vitamin K activity
Correct Answer: 🔴 B. Polymerization of abnormal hemoglobin S during hypoxia
Explanation: 🔹 Hemoglobin S polymerizes under conditions such as hypoxia and
dehydration, causing red blood cells to become rigid and sickle-shaped. These cells
obstruct microcirculation, resulting in ischemia and severe pain. The other options do
not represent the primary pathophysiology of sickle cell disease.
Q4. A patient diagnosed with aplastic anemia demonstrates pancytopenia. Which
finding is most consistent with this diagnosis?
A. Bone marrow failure leading to decreased blood cell production
B. Increased destruction of platelets only
C. Excessive erythropoietin secretion
D. Elevated leukocyte production
Correct Answer: 🔴 A. Bone marrow failure leading to decreased blood cell
production
Explanation: 🔹 Aplastic anemia results from bone marrow suppression or failure,
causing reductions in red cells, white cells, and platelets. Pancytopenia is a hallmark
finding. The remaining options affect only specific cell lines or describe opposite
processes.
Q5. Which laboratory finding is most characteristic of hemolytic anemia?
A. Elevated bilirubin levels
B. Decreased reticulocyte count
, C. Increased platelet count
D. Reduced lactate dehydrogenase levels
Correct Answer: 🔴 A. Elevated bilirubin levels
Explanation: 🔹 Hemolysis releases hemoglobin, which is metabolized into bilirubin.
Elevated bilirubin and LDH levels are common findings. Reticulocyte counts usually
increase as the bone marrow compensates. Platelet count changes are not primary
features.
Q6. A nurse reviews laboratory results showing prolonged bleeding time with normal
clotting factor studies. Which disorder is most likely?
A. Hemophilia A
B. von Willebrand disease
C. Disseminated intravascular coagulation
D. Polycythemia vera
Correct Answer: 🔴 B. von Willebrand disease
Explanation: 🔹 von Willebrand disease affects platelet adhesion and may prolong
bleeding time despite relatively normal coagulation studies. Hemophilia primarily
affects clotting factors. DIC causes widespread coagulation abnormalities, while
polycythemia involves increased red cell mass.
Q7. A patient with leukemia develops recurrent infections. The primary reason is:
A. Increased red blood cell destruction
B. Functional impairment of leukocytes
C. Excess insulin secretion
D. Increased thyroid hormone production
Correct Answer: 🔴 B. Functional impairment of leukocytes
Explanation: 🔹 Leukemia often produces large numbers of abnormal leukocytes that
lack effective immune function. Consequently, infection risk increases despite
