Nightingale Pathophysiology Final
Study Questions and Answers
1. Which of the following types of anemia is a microcytic anemia?
A. Pernicious anemia
B. Iron deficiency anemia
C. Folic acid deficiency anemia
D. Sickle cell anemia
B. Iron deficiency anemia
Answer Microcytic anemia is characterized by smaller-than-normal red blood cells (RBCs)
with a reduced mean corpuscular volume (MCV). Among the given options, iron deficiency anemia is
the most common cause of microcytic anemia. It occurs when there is insufficient iron available to
produce hemoglobin, leading to smaller RBCs that carry less oxygen.
2. Which of the following diseases increases the risk for abnormal
bleeding?
A. Von Willebrand disease
B. Factor V Leiden
C. Anemia
D. Polycythemia Vera
Answer Von Willebrand disease (vWD) is a bleeding disorder caused by a deficiency or
dysfunction of von Willebrand factor (vWF), a protein that is critical for platelet adhesion and aggregation
,during the formation of a blood clot. Without suflcient or functional vWF, clot formation is impaired, leading to
an increased risk of abnormal bleeding, including easy bruising, nosebleeds, prolonged bleeding after
injury, or heavy menstrual bleeding.
3. A 14-year-old girl presents with fatigue, pallor, and dizziness. She
mentions heavy menstrual periods and a diet low in red meat and
iron-rich foods. Lab- oratory tests reveal low hemoglobin, low
hematocrit, and low serum ferritin levels.
What are the key causes of iron deficiency anemia in adolescents, and
how does diet contribute?
A. Excessive vitamin C intake
B. Low dietary iron intake and menstrual blood loss C. Dehydration
D. Chronic bacterial infections
Answer Iron loss from menstruation combined with inadequate dietary intake is the most
common cause in this population.
4. A 55-year-old male complains of frequent headaches, dizziness,
and a ruddy complexion. He recently experienced a deep vein
thrombosis. Laboratory find- ings reveal elevated hemoglobin,
hematocrit, and red blood cell counts. JAK2 mutation testing is
positive
How is polycythemia vera managed?
A) Blood transfusions
,B) Therapeutic phlebotomy
C) Corticosteroids
D)Antibiotics
Answer Therapeutic phlebotomy reduces red blood cell mass, alleviating symptoms and lowering the
risk of thrombosis.
5. A 35-year-old postpartum female presents with uncontrolled
bleeding from her IV site and oozing from surgical incisions. She
shows signs of petechiae, hematuria, and low blood pressure.
Laboratory results reveal prolonged pro- thrombin time (PT),
thrombocytopenia, and elevated D-dimer levels.
What does an elevated D-dimer indicate?
Increased liver function
Ongoing clot breakdown
Low platelet count
High blood pressure
Answer Elevated D-dimer reflects fibrin degradation products, indicating ongoing clot forma-
tion and breakdown
6. Which pathophysiological change is associated with ARDS?
A) Bronchoconstriction
B) Alveolar damage and increased permeability
C) Mucosal edema
, D) Hyperinflation of the lungs
B) Alveolar damage and increased permeability.
Answer Acute Respiratory Distress Syndrome (ARDS) is a severe and potentially life-
threatening condition characterized by acute inflammation and diffuse alveolar damage.
This results in increased permeability of the alveolar-capillary barrier, allowing fluid, proteins, and
inflammatory cells to leak into the alveoli. These pathophysiological changes disrupt gas exchange and
lead to respiratory failure
7. What is a common complication of pulmonary hypertension?
A) Hypoglycemia
B) Right heart failure
C) Pulmonary embolism
D) Asthma exacerbation
B. Right Heart Failure
Answer Pulmonary hypertension is a condition where the blood pressure in the pulmonary
arteries becomes abnormally high. This increased pressure forces the right ventricle of the heart to
work harder to pump blood through the lungs. Over time, this increased workload causes the right
ventricle to enlarge (hypertrophy) and weaken, eventually leading to right heart failure, also known as
cor pulmonale.
8. A 65-year-old male with a history of left-sided heart failure
presents to the emergency department with shortness of breath,
Study Questions and Answers
1. Which of the following types of anemia is a microcytic anemia?
A. Pernicious anemia
B. Iron deficiency anemia
C. Folic acid deficiency anemia
D. Sickle cell anemia
B. Iron deficiency anemia
Answer Microcytic anemia is characterized by smaller-than-normal red blood cells (RBCs)
with a reduced mean corpuscular volume (MCV). Among the given options, iron deficiency anemia is
the most common cause of microcytic anemia. It occurs when there is insufficient iron available to
produce hemoglobin, leading to smaller RBCs that carry less oxygen.
2. Which of the following diseases increases the risk for abnormal
bleeding?
A. Von Willebrand disease
B. Factor V Leiden
C. Anemia
D. Polycythemia Vera
Answer Von Willebrand disease (vWD) is a bleeding disorder caused by a deficiency or
dysfunction of von Willebrand factor (vWF), a protein that is critical for platelet adhesion and aggregation
,during the formation of a blood clot. Without suflcient or functional vWF, clot formation is impaired, leading to
an increased risk of abnormal bleeding, including easy bruising, nosebleeds, prolonged bleeding after
injury, or heavy menstrual bleeding.
3. A 14-year-old girl presents with fatigue, pallor, and dizziness. She
mentions heavy menstrual periods and a diet low in red meat and
iron-rich foods. Lab- oratory tests reveal low hemoglobin, low
hematocrit, and low serum ferritin levels.
What are the key causes of iron deficiency anemia in adolescents, and
how does diet contribute?
A. Excessive vitamin C intake
B. Low dietary iron intake and menstrual blood loss C. Dehydration
D. Chronic bacterial infections
Answer Iron loss from menstruation combined with inadequate dietary intake is the most
common cause in this population.
4. A 55-year-old male complains of frequent headaches, dizziness,
and a ruddy complexion. He recently experienced a deep vein
thrombosis. Laboratory find- ings reveal elevated hemoglobin,
hematocrit, and red blood cell counts. JAK2 mutation testing is
positive
How is polycythemia vera managed?
A) Blood transfusions
,B) Therapeutic phlebotomy
C) Corticosteroids
D)Antibiotics
Answer Therapeutic phlebotomy reduces red blood cell mass, alleviating symptoms and lowering the
risk of thrombosis.
5. A 35-year-old postpartum female presents with uncontrolled
bleeding from her IV site and oozing from surgical incisions. She
shows signs of petechiae, hematuria, and low blood pressure.
Laboratory results reveal prolonged pro- thrombin time (PT),
thrombocytopenia, and elevated D-dimer levels.
What does an elevated D-dimer indicate?
Increased liver function
Ongoing clot breakdown
Low platelet count
High blood pressure
Answer Elevated D-dimer reflects fibrin degradation products, indicating ongoing clot forma-
tion and breakdown
6. Which pathophysiological change is associated with ARDS?
A) Bronchoconstriction
B) Alveolar damage and increased permeability
C) Mucosal edema
, D) Hyperinflation of the lungs
B) Alveolar damage and increased permeability.
Answer Acute Respiratory Distress Syndrome (ARDS) is a severe and potentially life-
threatening condition characterized by acute inflammation and diffuse alveolar damage.
This results in increased permeability of the alveolar-capillary barrier, allowing fluid, proteins, and
inflammatory cells to leak into the alveoli. These pathophysiological changes disrupt gas exchange and
lead to respiratory failure
7. What is a common complication of pulmonary hypertension?
A) Hypoglycemia
B) Right heart failure
C) Pulmonary embolism
D) Asthma exacerbation
B. Right Heart Failure
Answer Pulmonary hypertension is a condition where the blood pressure in the pulmonary
arteries becomes abnormally high. This increased pressure forces the right ventricle of the heart to
work harder to pump blood through the lungs. Over time, this increased workload causes the right
ventricle to enlarge (hypertrophy) and weaken, eventually leading to right heart failure, also known as
cor pulmonale.
8. A 65-year-old male with a history of left-sided heart failure
presents to the emergency department with shortness of breath,
