ATI RN
ATI Pathophysiology Exam 2
1. Which of the following describes the pathophysiology of exercise-induced asthma?
- A. Bronchospasm after exercise
- B. IgE-mediated inflammatory response to antigen
- C. Bronchoconstriction after ingesting high-allergen foods
- D. Increased mucus production due to a genetic mutation
Correct answer: A
Rationale: The correct answer is A: 'Bronchospasm after exercise.' Exercise-induced asthma involves the narrowing of the airways (bronchospasm) triggered by physical activity. This bronchospasm leads to symptoms such as coughing, wheezing, and shortness of breath. Choices B, C, and D are incorrect because exercise-induced asthma is not primarily caused by an IgE-mediated inflammatory response to an antigen, bronchoconstriction after ingesting high-allergen foods, or increased mucus production due to a genetic mutation.
2. When teaching a young woman about the use of hormonal contraceptives, a nurse should emphasize that these drugs are most effective when taken:
- A. Immediately after sexual intercourse.
- B. At the same time each day.
- C. Before going to bed at night.
- D. On an empty stomach.
Correct answer: B
Rationale: The correct answer is B: 'At the same time each day.' Hormonal contraceptives should be taken consistently at the same time each day to maintain stable hormone levels, which is crucial for their effectiveness. Taking them at random times can increase the risk of contraceptive failure. Choices A, C, and D are incorrect because taking hormonal contraceptives immediately after sexual intercourse, before going to bed at night, or on an empty stomach does not align with the recommended usage instructions for these drugs.
3. What clinical manifestations would the nurse expect to find in a client who is experiencing anaphylaxis?
- A. Dilated bronchioles, constriction of peripheral blood vessels, decreased capillary permeability
- B. Asthma, deep vein thrombosis, hepatic encephalopathy
- C. Narrowing of the bronchioles, dilation of the peripheral blood vessels, increased capillary permeability
- D. Left-sided heart failure, pulmonary embolism, urinary tract infection
Correct answer: C
Rationale: In anaphylaxis, the client would present with narrowing of the bronchioles, dilation of the peripheral blood vessels, and increased capillary permeability. These manifestations lead to symptoms such as difficulty breathing, low blood pressure, and swelling. Choices A, B, and D are incorrect because they do not describe the typical clinical manifestations of anaphylaxis.
4. Mrs. Jordan is an elderly client diagnosed with Alzheimer’s disease. She becomes agitated and combative when a nurse approaches to help with morning care. The most appropriate nursing intervention in this situation would be to:
- A. tell the client firmly that it is time to get dressed.
- B. obtain assistance to restrain the client for safety.
- C. remain calm and talk quietly to the client.
- D. call the doctor and request an order for sedation.
Correct answer: C
Rationale: When dealing with an elderly client with Alzheimer’s disease who is agitated and combative, the most appropriate nursing intervention is to remain calm and talk quietly to the client. This approach can help soothe the client and prevent escalating the situation. Choice A is incorrect as being firm may further agitate the client. Choice B is inappropriate as restraining should only be used as a last resort for safety reasons and after other de-escalation techniques have been attempted. Choice D is not the best initial intervention and should only be considered after other non-pharmacological interventions have failed.
5. A nursing student is learning about the effects of bactericidal agents. How does rifampin (Rifadin) achieve a therapeutic action against both intracellular and extracellular tuberculosis organisms?
- A. It is metabolized in the liver.
- B. It binds to acetylcholine.
- C. It inhibits synthesis of RNA.
- D. It causes phagocytosis.
Correct answer: C
Rationale: Rifampin (Rifadin) achieves a therapeutic action against both intracellular and extracellular tuberculosis organisms by inhibiting the synthesis of RNA. This action interferes with bacterial RNA synthesis, leading to the suppression of protein synthesis in the bacteria, ultimately causing their death. Option A is incorrect because rifampin is primarily metabolized in the liver, but this is not how it exerts its bactericidal effects. Option B is incorrect as rifampin does not bind to acetylcholine. Option D is also incorrect as rifampin does not cause phagocytosis.
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