Answers 2026/2027 | Complete HESI
Pathophysiology Exam Preparation Study
Guide
Description: This comprehensive study guide contains 200 multiple-choice questions
and answers covering all major pathophysiology topics tested on the HESI Exit Exam.
Each question includes the correct answer marked with ✅ and a brief rationale for
enhanced understanding.
Keywords: HESI Exit, Pathophysiology, HESI Exam 2026, HESI Exam 2027, Nursing Exam
Prep, MCQ, Study Guide, Pathophysiology Review, HESI Practice Questions, NCLEX Prep
Section 1: Cellular Function and Adaptation
1. Which cellular adaptation involves an increase in cell size?
A) Hyperplasia
B) Hypertrophy ✅
C) Atrophy
D) Metaplasia
2. A cell that is unable to adapt to stress may undergo:
A) Apoptosis
B) Necrosis ✅
C) Hypertrophy
D) Hyperplasia
,3. Which type of necrosis is characteristic of tuberculosis?
A) Coagulative
B) Liquefactive
C) Caseous ✅
D) Fat
4. Metaplasia is best described as:
A) Increase in cell number
B) Reversible replacement of one cell type with another ✅
C) Decrease in cell size
D) Disordered cell growth
5. Which is a common cause of cellular injury?
A) Oxygen toxicity
B) Free radical formation ✅
C) Hypothermia
D) All of the above ✅
6. Apoptosis differs from necrosis because apoptosis:
A) Causes inflammation
B) Is programmed cell death ✅
C) Affects large groups of cells
D) Is always pathological
7. Dysplasia refers to:
A) Reversible cell change
B) Disordered, atypical cell growth ✅
C) Cell death
D) Increased cell size
,8. Which organelle is responsible for ATP production?
A) Ribosome
B) Mitochondria ✅
C) Lysosome
D) Golgi apparatus
9. Atrophy can be caused by:
A) Increased workload
B) Disuse, denervation, or malnutrition ✅
C) Hormonal stimulation
D) Chronic irritation
10. Which type of cell adaptation is a precursor to cancer?
A) Hypertrophy
B) Atrophy
C) Dysplasia ✅
D) Metaplasia
Section 2: Inflammation and Immunity
11. The first vascular response to injury is:
A) Vasodilation
B) Vasoconstriction ✅
C) Increased permeability
D) Edema
12. Which cell is the first responder in acute inflammation?
, A) Macrophage
B) Neutrophil ✅
C) Lymphocyte
D) Eosinophil
13. Histamine is released primarily by:
A) Neutrophils
B) Mast cells ✅
C) Platelets
D) Fibroblasts
14. Which immunoglobulin is involved in allergic reactions?
A) IgG
B) IgM
C) IgE ✅
D) IgA
15. The classic signs of inflammation include all EXCEPT:
A) Redness
B) Heat
C) Pallor ✅
D) Pain
16. Which type of immunity is present at birth?
A) Active acquired
B) Passive acquired
C) Innate ✅
D) Adaptive
17. A vaccine provides: