ATI RN
ATI Pathophysiology Exam 2
1. A patient has been diagnosed with chronic renal failure. Which of the following agents will assist in raising the patient's hemoglobin levels?
- A. Epoetin alfa (Epogen, Procrit)
- B. Pentoxifylline (Pentoxil)
- C. Estazolam (ProSom)
- D. Dextromethorphan hydrobromide
Correct answer: A
Rationale: The correct answer is A: Epoetin alfa (Epogen, Procrit). Epoetin alfa is a synthetic form of erythropoietin that stimulates red blood cell production and is commonly used to treat anemia in patients with chronic renal failure. By increasing red blood cell production, epoetin alfa helps raise hemoglobin levels in these patients. Pentoxifylline (Choice B) is not indicated for raising hemoglobin levels in chronic renal failure patients; it is a peripheral vasodilator used to improve blood flow. Estazolam (Choice C) is a benzodiazepine used for treating insomnia and has no role in raising hemoglobin levels. Dextromethorphan hydrobromide (Choice D) is a cough suppressant and is not used to raise hemoglobin levels in patients with chronic renal failure.
2. A 10-year-old male is stung by a bee while playing in the yard. He experiences a severe allergic reaction and has to go to the ER. The nurse providing care realizes this reaction is the result of:
- A. Toxoids
- B. IgA
- C. IgE
- D. IgM
Correct answer: C
Rationale: The correct answer is C: IgE. A severe allergic reaction, such as the one experienced by the 10-year-old male after being stung by a bee, is mediated by IgE. IgE is involved in common allergic responses, triggering the release of histamine and other chemicals that lead to allergy symptoms. Choice A, Toxoids, are inactivated toxins used in vaccines. Choice B, IgA, is mainly found in mucosal areas and secretions, playing a role in mucosal immunity. Choice D, IgM, is the first antibody produced in response to an infection.
3. A nurse is providing education to a patient starting hormone replacement therapy (HRT) for menopausal symptoms. What should the nurse emphasize regarding the long-term risks associated with HRT?
- A. HRT may increase the risk of cardiovascular events, including heart attack and stroke.
- B. HRT may decrease the risk of osteoporosis.
- C. HRT may improve mood and energy levels.
- D. HRT may decrease the risk of breast cancer.
Correct answer: A
Rationale: HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke, particularly with long-term use.
4. Which of the following would the nurse expect to see in a client experiencing hypoventilation?
- A. Increased oxygenation in the alveoli
- B. Increased carbon dioxide in the bloodstream
- C. Decreased hemoglobin in the bloodstream
- D. Decreased carbon dioxide in the alveoli
Correct answer: B
Rationale: In hypoventilation, there is inadequate ventilation leading to decreased removal of carbon dioxide. This results in increased carbon dioxide in the bloodstream. The other choices are incorrect because hypoventilation does not improve oxygenation in the alveoli (Choice A), decrease hemoglobin in the bloodstream (Choice C), or decrease carbon dioxide in the alveoli (Choice D).
5. When caring for a patient with systemic lupus erythematosus (SLE), the disease the nurse is dealing with is an example of:
- A. Autoimmunity
- B. Alloimmunity
- C. Homoimmunity
- D. Alleimmunity
Correct answer: A
Rationale: When a nurse cares for a patient with systemic lupus erythematosus (SLE), the nurse is dealing with an autoimmune disease. In autoimmune diseases like SLE, the immune system mistakenly attacks the body's own tissues. Choice A, 'Autoimmunity,' is the correct answer because SLE is an example of the immune system attacking self-antigens, leading to tissue damage and inflammation. Choices B, C, and D are incorrect. Alloimmunity refers to the immune response against foreign antigens from members of the same species, homoimmunity is not a recognized term in immunology, and alleimmunity is not a valid term in this context.
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