MSN 570 – ADVANCED
PATHOPHYSIOLOGY MOCK TEST
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ 50 Questions and Answers
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1.
Older adults over 75 years of age have approximately what percentage of the vital capacity
compared to younger adults?
A. 100%
B. 80%
C. 50%
D. 25%
Answer: C
EXPLANATION: By age 75, older adults lose about 50% of their vital capacity due to loss of
respiratory muscle strength, decreased alveolar surface area, and chest wall stiffness.
2.
Which of the following are contributing factors for reduced respiratory capacity in geriatric
patients?
A. Increased respiratory muscle strength
B. Loss of respiratory muscle mass
C. Increased surface area for air exchange
D. Elastic lungs
Answer: B
EXPLANATION: Elderly patients experience loss of muscle mass, decreased surface area for
gas exchange, and thoracic cage stiffness, reducing lung function.
, 3.
What is a direct consequence of reduced vital capacity in older adults?
A. Reduced risk of pneumonia
B. Greater tolerance to respiratory illness
C. Increased likelihood of pneumonia from a common cold
D. Increased oxygen reserve
Answer: C
EXPLANATION: Decline in vital capacity reduces lung defense, making elderly patients more
susceptible to pneumonia from minor respiratory infections.
4.
Which of the following is an early sign of hypoxia?
A. Cyanosis
B. Tachycardia and restlessness
C. Weak pulse
D. Loss of consciousness
Answer: B
EXPLANATION: Early signs of hypoxia include tachycardia, anxiety, restlessness, irritability,
and apprehension.
5.
Why might a hypoxic patient not be able to report shortness of breath?
A. They are too calm
B. Brain dysfunction due to oxygen deprivation
C. Lung compliance is normal
D. They are on supplemental oxygen
Answer: B
EXPLANATION: Severe hypoxia deprives the brain of oxygen, impairing cognition and
awareness, leading to altered mental status.
6.
Which of the following are late signs of hypoxia?
A. Anxiety and irritability
PATHOPHYSIOLOGY MOCK TEST
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ 50 Questions and Answers
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1.
Older adults over 75 years of age have approximately what percentage of the vital capacity
compared to younger adults?
A. 100%
B. 80%
C. 50%
D. 25%
Answer: C
EXPLANATION: By age 75, older adults lose about 50% of their vital capacity due to loss of
respiratory muscle strength, decreased alveolar surface area, and chest wall stiffness.
2.
Which of the following are contributing factors for reduced respiratory capacity in geriatric
patients?
A. Increased respiratory muscle strength
B. Loss of respiratory muscle mass
C. Increased surface area for air exchange
D. Elastic lungs
Answer: B
EXPLANATION: Elderly patients experience loss of muscle mass, decreased surface area for
gas exchange, and thoracic cage stiffness, reducing lung function.
, 3.
What is a direct consequence of reduced vital capacity in older adults?
A. Reduced risk of pneumonia
B. Greater tolerance to respiratory illness
C. Increased likelihood of pneumonia from a common cold
D. Increased oxygen reserve
Answer: C
EXPLANATION: Decline in vital capacity reduces lung defense, making elderly patients more
susceptible to pneumonia from minor respiratory infections.
4.
Which of the following is an early sign of hypoxia?
A. Cyanosis
B. Tachycardia and restlessness
C. Weak pulse
D. Loss of consciousness
Answer: B
EXPLANATION: Early signs of hypoxia include tachycardia, anxiety, restlessness, irritability,
and apprehension.
5.
Why might a hypoxic patient not be able to report shortness of breath?
A. They are too calm
B. Brain dysfunction due to oxygen deprivation
C. Lung compliance is normal
D. They are on supplemental oxygen
Answer: B
EXPLANATION: Severe hypoxia deprives the brain of oxygen, impairing cognition and
awareness, leading to altered mental status.
6.
Which of the following are late signs of hypoxia?
A. Anxiety and irritability
