ATI RN
Pathophysiology Practice Exam
1. A 44-year-old man presents with muscle weakness and fatigue. He states that he has experienced difficulty climbing stairs and even holding his arms up to comb his hair. Which test is most likely to help confirm the diagnosis?
- A. Electromyography (EMG)
- B. Nerve conduction studies
- C. Muscle biopsy
- D. Blood test for autoantibodies
Correct answer: A
Rationale: The correct answer is Electromyography (EMG). EMG is commonly used to diagnose conditions involving muscle weakness and fatigue, such as myasthenia gravis. Nerve conduction studies primarily assess nerve function rather than muscle involvement. While a muscle biopsy can provide valuable information, EMG is more specific for evaluating muscle function in this context. A blood test for autoantibodies may be helpful in certain autoimmune conditions but is not the primary test for confirming the diagnosis based on the patient's symptoms of muscle weakness and fatigue.
2. In managing a patient with anorexia nervosa, which initial treatment goal is most important?
- A. Addressing distorted body image
- B. Restoring nutritional status
- C. Resolving family conflicts
- D. Increasing social interactions
Correct answer: B
Rationale: The most crucial initial treatment goal for anorexia nervosa is restoring nutritional status. This is essential to prevent life-threatening complications associated with severe malnutrition, such as organ damage and cardiac issues. Addressing distorted body image, resolving family conflicts, and increasing social interactions are important aspects of treatment, but they are secondary to the critical need of restoring the patient's nutritional status to ensure their physical well-being and recovery.
3. A healthcare provider is educating a client who has a new prescription for Simvastatin. Which of the following instructions should the healthcare provider include?
- A. Take this medication with food.
- B. Avoid drinking grapefruit juice.
- C. Take this medication in the morning.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct instruction that the healthcare provider should include is to 'Avoid drinking grapefruit juice.' Grapefruit juice can increase the blood levels of Simvastatin, leading to potential side effects like muscle pain and liver damage. Instructing the client to avoid grapefruit juice helps prevent these adverse effects and ensures the medication's efficacy. Choices A, C, and D are incorrect because taking Simvastatin with food, at a specific time, or increasing potassium-rich foods intake are not essential instructions for this medication.
4. What is the term for a ringing in the ears reported by the client?
- A. Weber
- B. Rinne
- C. Pinna
- D. Tinnitus
Correct answer: D
Rationale: Tinnitus is the correct answer. Tinnitus refers to the perception of noise or ringing in the ears. This condition can be constant or intermittent and may be caused by various factors such as exposure to loud noises, ear infections, or underlying health conditions. Choices A, B, and C are incorrect as Weber and Rinne tests are related to hearing assessment, while the pinna is the external part of the ear responsible for collecting sound waves.
5. The World Health Organization defines health as:
- A. The health of individuals and communities is, to a large extent, affected by a combination of many factors.
- B. A state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity.
- C. Refers to the well-being of individuals, families, and communities being influenced by several factors in the ecosystem.
- D. The science and art of preventing disease, prolonging life, promoting health, and efficiency through organized community effort for the sanitation of the environment, control of communicable diseases, education of individuals in personal hygiene, and organizing these benefits to enable every citizen to realize their birthright of health and longevity.
Correct answer: B
Rationale: The World Health Organization defines health as a state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity. This definition emphasizes that health encompasses more than just the absence of illness; it includes physical, mental, and social well-being.
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