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,1. Pathophysiology is best defined as the study of:
A. Normal body structure
B. Functional changes associated with disease and injury
C. Drug classifications
D. Surgical procedures
Answer: B
Explanation: Pathophysiology examines the abnormal physiological processes that occur
because of disease or injury, helping nurses understand how illnesses affect body function.
2. Homeostasis refers to the body's ability to:
A. Maintain a relatively stable internal environment
B. Produce hormones
C. Eliminate bacteria
D. Increase metabolism continuously
Answer: A
Explanation: Homeostasis is the body's process of maintaining stable internal conditions
despite changes in the external environment.
3. Which process helps maintain homeostasis by reversing changes from a normal
set point?
A. Negative feedback
,B. Positive feedback
C. Feedforward control
D. Adaptation
Answer: A
Explanation: Negative feedback mechanisms counteract deviations from normal
conditions, such as regulating body temperature or blood glucose.
4. Which of the following is an example of positive feedback?
A. Blood clot formation
B. Regulation of blood pressure
C. Control of blood glucose
D. Body temperature regulation
Answer: A
Explanation: Positive feedback amplifies a response until a specific event is completed,
such as clot formation or childbirth.
5. Which term describes the body's ability to adapt to stress or injury?
A. Compensation
B. Necrosis
C. Atrophy
D. Apoptosis
, Answer: A
Explanation: Compensation involves physiologic adjustments that help maintain function
despite disease or injury.
6. Which cell adaptation is characterized by a decrease in cell size?
A. Atrophy
B. Hypertrophy
C. Hyperplasia
D. Metaplasia
Answer: A
Explanation: Atrophy occurs when cells shrink because of decreased workload, aging,
poor nutrition, or loss of nerve supply.
7. Which cellular adaptation involves an increase in cell size?
A. Hypertrophy
B. Atrophy
C. Dysplasia
D. Apoptosis
Answer: A
Explanation: Hypertrophy results in enlarged cells, commonly seen in skeletal muscle after
exercise or cardiac muscle in hypertension.
,1. Pathophysiology is best defined as the study of:
A. Normal body structure
B. Functional changes associated with disease and injury
C. Drug classifications
D. Surgical procedures
Answer: B
Explanation: Pathophysiology examines the abnormal physiological processes that occur
because of disease or injury, helping nurses understand how illnesses affect body function.
2. Homeostasis refers to the body's ability to:
A. Maintain a relatively stable internal environment
B. Produce hormones
C. Eliminate bacteria
D. Increase metabolism continuously
Answer: A
Explanation: Homeostasis is the body's process of maintaining stable internal conditions
despite changes in the external environment.
3. Which process helps maintain homeostasis by reversing changes from a normal
set point?
A. Negative feedback
,B. Positive feedback
C. Feedforward control
D. Adaptation
Answer: A
Explanation: Negative feedback mechanisms counteract deviations from normal
conditions, such as regulating body temperature or blood glucose.
4. Which of the following is an example of positive feedback?
A. Blood clot formation
B. Regulation of blood pressure
C. Control of blood glucose
D. Body temperature regulation
Answer: A
Explanation: Positive feedback amplifies a response until a specific event is completed,
such as clot formation or childbirth.
5. Which term describes the body's ability to adapt to stress or injury?
A. Compensation
B. Necrosis
C. Atrophy
D. Apoptosis
, Answer: A
Explanation: Compensation involves physiologic adjustments that help maintain function
despite disease or injury.
6. Which cell adaptation is characterized by a decrease in cell size?
A. Atrophy
B. Hypertrophy
C. Hyperplasia
D. Metaplasia
Answer: A
Explanation: Atrophy occurs when cells shrink because of decreased workload, aging,
poor nutrition, or loss of nerve supply.
7. Which cellular adaptation involves an increase in cell size?
A. Hypertrophy
B. Atrophy
C. Dysplasia
D. Apoptosis
Answer: A
Explanation: Hypertrophy results in enlarged cells, commonly seen in skeletal muscle after
exercise or cardiac muscle in hypertension.
