ATI RN
Pathophysiology Practice Questions
1. A patient presents with a chronic cough, night sweats, and weight loss. A chest X-ray reveals upper lobe cavitary lesions. Which of the following is the most likely diagnosis?
- A. Tuberculosis
- B. Pneumonia
- C. Lung cancer
- D. Sarcoidosis
Correct answer: A
Rationale: The correct answer is A: Tuberculosis. Cavitary lesions in the upper lobes are classic findings seen in tuberculosis. This infectious disease commonly presents with symptoms such as chronic cough, night sweats, and weight loss. Pneumonia (Choice B) typically does not present with cavitary lesions on chest X-ray. Lung cancer (Choice C) may present with similar symptoms but is less likely to cause cavitary lesions in the upper lobes. Sarcoidosis (Choice D) usually presents with bilateral hilar lymphadenopathy and non-caseating granulomas, different from the cavitary lesions described in the case.
2. What causes osteoporosis?
- A. Poor nutrition in infancy
- B. Regularly weight-bearing exercise
- C. Bone loss, frequently during aging
- D. Cerebral palsy and associated disorders
Correct answer: C
Rationale: The correct answer is C. Osteoporosis is commonly caused by bone loss that occurs with aging, leading to brittle bones. Choice A, poor nutrition in infancy, is not a direct cause of osteoporosis. Choice B, regularly weight-bearing exercise, actually helps in maintaining bone density and strength, reducing the risk of osteoporosis. Choice D, cerebral palsy and associated disorders, is not a common cause of osteoporosis.
3. A patient with a history of venous thromboembolism is prescribed hormone replacement therapy (HRT). What should the nurse emphasize about the risks associated with this therapy?
- A. HRT is associated with an increased risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. HRT may improve mood and energy levels, but it also increases the risk of osteoporosis.
- C. HRT can decrease the risk of fractures, but it also increases the risk of developing diabetes.
- D. HRT may increase the risk of breast cancer, so regular mammograms are essential.
Correct answer: A
Rationale: HRT is associated with an increased risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots and advised to seek immediate medical attention if they occur.
4. Which of the following hormones helps to raise the blood sugar level to help maintain homeostasis?
- A. Antidiuretic hormone (ADH)
- B. Insulin
- C. Glucagon
- D. Thyroxine
Correct answer: C
Rationale: The correct answer is C, Glucagon. Glucagon helps raise blood sugar levels by stimulating the liver to release stored glucose into the bloodstream, thus aiding in maintaining homeostasis. Antidiuretic hormone (ADH), choice A, functions in regulating water balance in the body, not blood sugar levels. Insulin, choice B, lowers blood sugar levels by facilitating glucose uptake by cells. Thyroxine, choice D, is a hormone produced by the thyroid gland that regulates metabolism and has no direct effect on blood sugar levels.
5. Two people experience the same stressor yet only one is able to cope and adapt adequately. An example of the person with an increased capacity to adapt is the one with:
- A. A sense of purpose in life
- B. Circadian rhythm disruption
- C. Age-related renal dysfunction
- D. Excessive weight gain or loss
Correct answer: A
Rationale: A strong sense of purpose in life is associated with better stress coping mechanisms, which can enhance a person's capacity to adapt. Having a clear sense of purpose provides individuals with motivation, direction, and resilience to face challenges. Choices B, C, and D are not directly related to an increased capacity to adapt to stress. Circadian rhythm disruption, age-related renal dysfunction, and excessive weight gain or loss may have negative impacts on overall well-being and stress management.
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