NURS 3366 Pathophysiologic Processes:
Implications for Nursing Final Exam
Questions And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1. Which process is primarily responsible for maintaining
homeostasis within the human body?
A. Apoptosis
B. Positive feedback mechanisms
C. Negative feedback mechanisms
D. Necrosis
Answer: C. Negative feedback mechanisms
Rationale: Negative feedback mechanisms continuously monitor
physiological variables and reverse deviations from normal, helping
maintain homeostasis. Examples include regulation of blood pressure,
body temperature, and blood glucose. Positive feedback mechanisms
,amplify a response and are used less frequently, such as during labor
and blood clotting.
2. Which cellular adaptation occurs when skeletal muscle increases
in size following regular resistance training?
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy refers to an increase in cell size without
increasing cell number. Skeletal muscle cells enlarge because they
cannot readily divide. Hyperplasia involves an increase in cell number,
whereas metaplasia and dysplasia involve abnormal cellular changes.
3. Which electrolyte is the primary intracellular cation?
A. Sodium
B. Calcium
C. Potassium
D. Chloride
,Answer: C. Potassium
Rationale: Potassium is the major intracellular cation and is essential for
maintaining resting membrane potential, nerve impulse conduction, and
muscle contraction. Sodium is the primary extracellular cation.
4. Which acid-base imbalance is commonly associated with
prolonged vomiting?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Answer: B. Metabolic alkalosis
Rationale: Vomiting causes excessive loss of hydrochloric acid from the
stomach, increasing serum bicarbonate concentration and resulting in
metabolic alkalosis. Patients may also develop hypokalemia due to
associated electrolyte losses.
5. Which component of the immune system provides immediate,
nonspecific defense against pathogens?
, A. B lymphocytes
B. T lymphocytes
C. Innate immunity
D. Antibody-mediated immunity
Answer: C. Innate immunity
Rationale: Innate immunity provides rapid, nonspecific protection
through physical barriers, inflammation, phagocytic cells, and natural
killer cells. Adaptive immunity is slower but highly specific and involves
B and T lymphocytes.
6. Which white blood cell is primarily responsible for antibody
production?
A. Neutrophil
B. Macrophage
C. B lymphocyte
D. Eosinophil
Answer: C. B lymphocyte
Rationale: B lymphocytes differentiate into plasma cells, which produce
antibodies that target specific antigens. This process is central to
humoral immunity.
Implications for Nursing Final Exam
Questions And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1. Which process is primarily responsible for maintaining
homeostasis within the human body?
A. Apoptosis
B. Positive feedback mechanisms
C. Negative feedback mechanisms
D. Necrosis
Answer: C. Negative feedback mechanisms
Rationale: Negative feedback mechanisms continuously monitor
physiological variables and reverse deviations from normal, helping
maintain homeostasis. Examples include regulation of blood pressure,
body temperature, and blood glucose. Positive feedback mechanisms
,amplify a response and are used less frequently, such as during labor
and blood clotting.
2. Which cellular adaptation occurs when skeletal muscle increases
in size following regular resistance training?
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy refers to an increase in cell size without
increasing cell number. Skeletal muscle cells enlarge because they
cannot readily divide. Hyperplasia involves an increase in cell number,
whereas metaplasia and dysplasia involve abnormal cellular changes.
3. Which electrolyte is the primary intracellular cation?
A. Sodium
B. Calcium
C. Potassium
D. Chloride
,Answer: C. Potassium
Rationale: Potassium is the major intracellular cation and is essential for
maintaining resting membrane potential, nerve impulse conduction, and
muscle contraction. Sodium is the primary extracellular cation.
4. Which acid-base imbalance is commonly associated with
prolonged vomiting?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Answer: B. Metabolic alkalosis
Rationale: Vomiting causes excessive loss of hydrochloric acid from the
stomach, increasing serum bicarbonate concentration and resulting in
metabolic alkalosis. Patients may also develop hypokalemia due to
associated electrolyte losses.
5. Which component of the immune system provides immediate,
nonspecific defense against pathogens?
, A. B lymphocytes
B. T lymphocytes
C. Innate immunity
D. Antibody-mediated immunity
Answer: C. Innate immunity
Rationale: Innate immunity provides rapid, nonspecific protection
through physical barriers, inflammation, phagocytic cells, and natural
killer cells. Adaptive immunity is slower but highly specific and involves
B and T lymphocytes.
6. Which white blood cell is primarily responsible for antibody
production?
A. Neutrophil
B. Macrophage
C. B lymphocyte
D. Eosinophil
Answer: C. B lymphocyte
Rationale: B lymphocytes differentiate into plasma cells, which produce
antibodies that target specific antigens. This process is central to
humoral immunity.
