NR507 Week 8 Final Exam 2026 NR 507 Advanced Pathophysiology
Complete Question 1-100 (Actual Exam Proctored via Examplify) With
Correct Answers | 100% Pass Guaranteed | Graded A+
1. A 55-year-old male presents with severe chest pain that radiates to his left
jaw. Electrocardiogram reveals ST-segment elevation in leads V1–V4. Which
coronary artery is most likely occluded?
A) Right coronary artery
B) Left circumflex artery
C) Left anterior descending artery
, D) Posterior descending artery
Rationale: ST-segment elevation in leads V1 through V4 indicates an acute
anterior wall myocardial infarction. The left anterior descending (LAD) artery
supplies blood to the anterior wall of the left ventricle and the interventricular
septum.
2. Which cell organelle is primary responsible for cellular energy production via
oxidative phosphorylation?
A) Lysosome
B) Mitochondria
C) Endoplasmic reticulum
D) Golgi apparatus
Rationale: Mitochondria generate the majority of cellular adenosine
triphosphate (ATP) through the electron transport chain and oxidative
phosphorylation, earning them the reputation as the powerhouse of the cell.
3. What type of cellular adaptation occurs in the uterine endometrium during
the normal menstrual cycle in response to estrogen stimulation?
A) Atrophy
B) Metaplasia
C) Hyperplasia
D) Dysplasia
Rationale: Hormonal stimulation by estrogen induces cellular hyperplasia,
which is an increase in the absolute number of normal cells, causing the
endometrial lining to thicken during the proliferative phase.
4. A patient experiences prolonged ischemia to cardiac tissue, resulting in
irreversible cell death. Which type of tissue necrosis is characteristic of
myocardial infarction?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Rationale: Coagulative necrosis occurs primarily in solid organs (like the heart,
kidneys, and adrenal glands) following severe ischemia. It is characterized by
, the denaturation of structural proteins, preserving the basic tissue architecture
for several days.
5. What is the primary driving force behind fluid movement from the
intravascular space into the interstitial space at the arterial end of a capillary?
A) Capillary hydrostatic pressure
B) Plasma oncotic pressure
C) Interstitial hydrostatic pressure
D) Intravascular osmotic pressure
Rationale: Capillary hydrostatic pressure (blood pressure inside the capillary)
is higher at the arterial end than the plasma oncotic pressure, physically
forcing fluid out through the semipermeable capillary wall into the interstitium.
6. A patient with severe chronic kidney disease presents with a serum
potassium level of 6.8 mEq/L. Which electrocardiogram (ECG) change is most
diagnostic of this electrolyte imbalance?
A) Prominent U waves
B) Prolonged QT interval
C) Tall, peaked T waves
D) ST-segment depression
Rationale: Hyperkalemia alters myocardial membrane excitability. An early and
classic ECG manifestation of severe hyperkalemia is the presence of narrow,
tall, and peaked T waves due to accelerated repolarization.
7. Which acid-base imbalance is a patient at risk for developing after three days
of continuous, severe vomiting?
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Rationale: Vomiting causes a massive loss of hydrochloric acid (HCl) from the
stomach. The loss of hydrogen and chloride ions leaves an excess of
bicarbonate ions in the extracellular fluid, resulting in metabolic alkalosis.
, 8. What is the main function of the plasma complement system during an acute
inflammatory response?
A) Synthesis of clotting factors to limit hemorrhage
B) Opsonization of pathogens, recruitment of inflammatory cells, and direct cell
lysis
C) Production of antibodies by transformed plasma cells
D) Suppression of histamine release from mast cells
Rationale: The complement system consists of proteins that, when activated,
create a cascade that coats pathogens (opsonization), releases chemotactic
factors to recruit neutrophils, and forms the membrane attack complex (MAC)
to lyse target cells.
9. Which vascular change occurs immediately during the early vascular phase
of acute inflammation?
A) Vasoconstriction of large veins
B) Decreased capillary permeability
C) Vasodilation of arterioles and increased capillary permeability
D) Intravascular volume contraction
Rationale: Chemical mediators like histamine cause immediate vasodilation of
local arterioles, increasing blood flow (hyperemia), and cause endothelial cells
to contract, which increases capillary permeability to allow fluid leakage.
10. What type of exudate is rich in fibrinogen and forms a thick, sticky
meshwork over an inflamed organ surface, such as in fibrinous pericarditis?
A) Serous exudate
B) Fibrinous exudate
C) Purulent exudate
D) Hemorrhagic exudate
Rationale: Fibrinous exudate occurs with more severe inflammatory responses
where vascular permeability increases enough to allow large fibrinogen
molecules to escape the blood and form a thick, clotted fibrin mesh.
Complete Question 1-100 (Actual Exam Proctored via Examplify) With
Correct Answers | 100% Pass Guaranteed | Graded A+
1. A 55-year-old male presents with severe chest pain that radiates to his left
jaw. Electrocardiogram reveals ST-segment elevation in leads V1–V4. Which
coronary artery is most likely occluded?
A) Right coronary artery
B) Left circumflex artery
C) Left anterior descending artery
, D) Posterior descending artery
Rationale: ST-segment elevation in leads V1 through V4 indicates an acute
anterior wall myocardial infarction. The left anterior descending (LAD) artery
supplies blood to the anterior wall of the left ventricle and the interventricular
septum.
2. Which cell organelle is primary responsible for cellular energy production via
oxidative phosphorylation?
A) Lysosome
B) Mitochondria
C) Endoplasmic reticulum
D) Golgi apparatus
Rationale: Mitochondria generate the majority of cellular adenosine
triphosphate (ATP) through the electron transport chain and oxidative
phosphorylation, earning them the reputation as the powerhouse of the cell.
3. What type of cellular adaptation occurs in the uterine endometrium during
the normal menstrual cycle in response to estrogen stimulation?
A) Atrophy
B) Metaplasia
C) Hyperplasia
D) Dysplasia
Rationale: Hormonal stimulation by estrogen induces cellular hyperplasia,
which is an increase in the absolute number of normal cells, causing the
endometrial lining to thicken during the proliferative phase.
4. A patient experiences prolonged ischemia to cardiac tissue, resulting in
irreversible cell death. Which type of tissue necrosis is characteristic of
myocardial infarction?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Rationale: Coagulative necrosis occurs primarily in solid organs (like the heart,
kidneys, and adrenal glands) following severe ischemia. It is characterized by
, the denaturation of structural proteins, preserving the basic tissue architecture
for several days.
5. What is the primary driving force behind fluid movement from the
intravascular space into the interstitial space at the arterial end of a capillary?
A) Capillary hydrostatic pressure
B) Plasma oncotic pressure
C) Interstitial hydrostatic pressure
D) Intravascular osmotic pressure
Rationale: Capillary hydrostatic pressure (blood pressure inside the capillary)
is higher at the arterial end than the plasma oncotic pressure, physically
forcing fluid out through the semipermeable capillary wall into the interstitium.
6. A patient with severe chronic kidney disease presents with a serum
potassium level of 6.8 mEq/L. Which electrocardiogram (ECG) change is most
diagnostic of this electrolyte imbalance?
A) Prominent U waves
B) Prolonged QT interval
C) Tall, peaked T waves
D) ST-segment depression
Rationale: Hyperkalemia alters myocardial membrane excitability. An early and
classic ECG manifestation of severe hyperkalemia is the presence of narrow,
tall, and peaked T waves due to accelerated repolarization.
7. Which acid-base imbalance is a patient at risk for developing after three days
of continuous, severe vomiting?
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Rationale: Vomiting causes a massive loss of hydrochloric acid (HCl) from the
stomach. The loss of hydrogen and chloride ions leaves an excess of
bicarbonate ions in the extracellular fluid, resulting in metabolic alkalosis.
, 8. What is the main function of the plasma complement system during an acute
inflammatory response?
A) Synthesis of clotting factors to limit hemorrhage
B) Opsonization of pathogens, recruitment of inflammatory cells, and direct cell
lysis
C) Production of antibodies by transformed plasma cells
D) Suppression of histamine release from mast cells
Rationale: The complement system consists of proteins that, when activated,
create a cascade that coats pathogens (opsonization), releases chemotactic
factors to recruit neutrophils, and forms the membrane attack complex (MAC)
to lyse target cells.
9. Which vascular change occurs immediately during the early vascular phase
of acute inflammation?
A) Vasoconstriction of large veins
B) Decreased capillary permeability
C) Vasodilation of arterioles and increased capillary permeability
D) Intravascular volume contraction
Rationale: Chemical mediators like histamine cause immediate vasodilation of
local arterioles, increasing blood flow (hyperemia), and cause endothelial cells
to contract, which increases capillary permeability to allow fluid leakage.
10. What type of exudate is rich in fibrinogen and forms a thick, sticky
meshwork over an inflamed organ surface, such as in fibrinous pericarditis?
A) Serous exudate
B) Fibrinous exudate
C) Purulent exudate
D) Hemorrhagic exudate
Rationale: Fibrinous exudate occurs with more severe inflammatory responses
where vascular permeability increases enough to allow large fibrinogen
molecules to escape the blood and form a thick, clotted fibrin mesh.
