NURS 5220: ADVANCED
PATHOPHYSIOLOGY AND CLINICAL
PHARMACOLOGY COMPREHENSIVE
EXAM QUESTIONS AND VERIFIED
ANSWERS. JUST RELEASED
1. Which process results in the decrease in cell size by the loss of subcellular organelles and
substances?
A. Hypertrophy
B. Atrophy
C. Metaplasia
D. Dysplasia
Answer: B
Conceptual Explanation: Atrophy is the shrinkage in cell size due to loss of cell substance,
often resulting from decreased workload, loss of innervation, or diminished blood supply.
2. In the context of pharmacokinetics, what does the term ‘First-Pass Effect’ primarily refer
to?
A. The rapid excretion of drugs via the kidneys.
B. The initial distribution of a drug to highly perfused organs.
,C. The binding of drugs to plasma proteins like albumin.
D. The metabolism of a drug in the liver before it reaches systemic circulation.
Answer: D
Conceptual Explanation: The first-pass effect occurs when an orally administered drug is
absorbed from the GI tract and carried via the portal vein to the liver, where it is
metabolized before reaching the rest of the body.
3. Which type of hypersensitivity reaction is mediated by IgE antibodies and involves the
release of histamine from mast cells?
A. Type I
B. Type II
C. Type III
D. Type IV
Answer: A
Conceptual Explanation: Type I hypersensitivity is an immediate allergic reaction
mediated by IgE, leading to mast cell degranulation and histamine release.
4. A patient presents with a pH of 7.25, PCO2 of 55 mmHg, and HCO3 of 26 mEq/L. Which
acid-base imbalance is present?
A. Respiratory Acidosis
B. Respiratory Alkalosis
, C. Metabolic Acidosis
D. Metabolic Alkalosis
Answer: A
Conceptual Explanation: A low pH (<7.35) indicates acidosis, and a high PCO2 (>45)
indicates a respiratory cause, pointing to respiratory acidosis.
5. Which cellular adaptation is characterized by the replacement of one mature cell type by
another mature cell type, often due to chronic irritation?
A. Neoplasia
B. Hyperplasia
C. Anaplasia
D. Metaplasia
Answer: D
Conceptual Explanation: Metaplasia is a reversible change where one adult cell type
(epithelial or mesenchymal) is replaced by another adult cell type to better withstand
stress.
6. What is the primary mechanism of action of Heparin in preventing blood clot formation?
A. Potentiating the action of Antithrombin III.
B. Direct inhibition of Factor Xa.
C. Inhibition of Vitamin K epoxide reductase.
PATHOPHYSIOLOGY AND CLINICAL
PHARMACOLOGY COMPREHENSIVE
EXAM QUESTIONS AND VERIFIED
ANSWERS. JUST RELEASED
1. Which process results in the decrease in cell size by the loss of subcellular organelles and
substances?
A. Hypertrophy
B. Atrophy
C. Metaplasia
D. Dysplasia
Answer: B
Conceptual Explanation: Atrophy is the shrinkage in cell size due to loss of cell substance,
often resulting from decreased workload, loss of innervation, or diminished blood supply.
2. In the context of pharmacokinetics, what does the term ‘First-Pass Effect’ primarily refer
to?
A. The rapid excretion of drugs via the kidneys.
B. The initial distribution of a drug to highly perfused organs.
,C. The binding of drugs to plasma proteins like albumin.
D. The metabolism of a drug in the liver before it reaches systemic circulation.
Answer: D
Conceptual Explanation: The first-pass effect occurs when an orally administered drug is
absorbed from the GI tract and carried via the portal vein to the liver, where it is
metabolized before reaching the rest of the body.
3. Which type of hypersensitivity reaction is mediated by IgE antibodies and involves the
release of histamine from mast cells?
A. Type I
B. Type II
C. Type III
D. Type IV
Answer: A
Conceptual Explanation: Type I hypersensitivity is an immediate allergic reaction
mediated by IgE, leading to mast cell degranulation and histamine release.
4. A patient presents with a pH of 7.25, PCO2 of 55 mmHg, and HCO3 of 26 mEq/L. Which
acid-base imbalance is present?
A. Respiratory Acidosis
B. Respiratory Alkalosis
, C. Metabolic Acidosis
D. Metabolic Alkalosis
Answer: A
Conceptual Explanation: A low pH (<7.35) indicates acidosis, and a high PCO2 (>45)
indicates a respiratory cause, pointing to respiratory acidosis.
5. Which cellular adaptation is characterized by the replacement of one mature cell type by
another mature cell type, often due to chronic irritation?
A. Neoplasia
B. Hyperplasia
C. Anaplasia
D. Metaplasia
Answer: D
Conceptual Explanation: Metaplasia is a reversible change where one adult cell type
(epithelial or mesenchymal) is replaced by another adult cell type to better withstand
stress.
6. What is the primary mechanism of action of Heparin in preventing blood clot formation?
A. Potentiating the action of Antithrombin III.
B. Direct inhibition of Factor Xa.
C. Inhibition of Vitamin K epoxide reductase.
