ATI RN
ATI Pathophysiology Exam 2
1. A 22-year-old was recently diagnosed with acquired immunodeficiency syndrome (AIDS). Which decreased lab finding would be expected to accompany this virus?
- A. CD4 helper T cells
- B. CD8 helper T cells
- C. CDC cells
- D. CDC10 cells
Correct answer: A
Rationale: In a person diagnosed with AIDS, a decrease in CD4 helper T cells is expected. These cells are critical for the immune system's proper functioning, and their reduction weakens the body's ability to fight infections. CD8 helper T cells (Choice B) are not typically decreased in AIDS. CDC cells (Choice C) and CDC10 cells (Choice D) are not relevant terms in this context, making them incorrect choices.
2. While in an induced coma for 3 weeks, a badly burned firefighter awakens and thanks his son for singing Happy Birthday to him a week earlier. Which part of the brain is responsible for allowing him to hear and comprehend while comatose?
- A. Cerebellum
- B. Thalamus
- C. Temporal lobe
- D. Occipital lobe
Correct answer: C
Rationale: The temporal lobe is responsible for processing auditory information, allowing the patient to hear and comprehend while in a coma. The cerebellum is primarily associated with coordination and balance, not auditory processing. The thalamus serves as a relay station for sensory information but is not specifically responsible for auditory processing. The occipital lobe is mainly involved in processing visual information, not auditory functions.
3. In a 41-year-old male patient with a complex medical history diagnosed with secondary hypogonadism, which of the following health problems is the most likely etiology of his diagnosis?
- A. Type 1 diabetes
- B. Mumps
- C. An inflammatory process in the testicles
- D. Testicular trauma
Correct answer: C
Rationale: The correct answer is C: An inflammatory process in the testicles. Secondary hypogonadism in males can be caused by various factors, including an inflammatory process in the testicles. Mumps (choice B) can lead to orchitis but is less common in adults. Type 1 diabetes (choice A) is not a common cause of secondary hypogonadism. Testicular trauma (choice D) can cause primary hypogonadism but is less likely to cause secondary hypogonadism.
4. Which of the following nursing diagnoses would provide the most plausible indication for the use of epoetin alfa (Epogen) in a patient with renal failure?
- A. Risk for infection related to decreased erythropoiesis
- B. Activity intolerance related to decreased oxygen-carrying capacity
- C. Powerlessness related to sequelae of renal failure
- D. Ineffective breathing pattern related to inadequate erythropoietin synthesis
Correct answer: B
Rationale: The correct answer is B. In a patient with renal failure, the use of epoetin alfa (Epogen) is primarily aimed at addressing the decreased oxygen-carrying capacity due to impaired erythropoiesis. Epoetin alfa is a medication that stimulates red blood cell production, thereby improving the oxygen-carrying capacity of the blood. This would directly address the activity intolerance commonly seen in patients with renal failure. Choices A, C, and D are incorrect because they do not directly relate to the primary purpose of using epoetin alfa in this context. Risk for infection, powerlessness, and ineffective breathing pattern are important considerations in the care of a patient with renal failure, but they are not the primary indications for using epoetin alfa.
5. Hematopoiesis occurs primarily in the bone marrow. What cells are formed during this process?
- A. Pancreatic beta cells
- B. Red blood cells
- C. Gastric parietal cells
- D. Neurons and glial cells
Correct answer: B
Rationale: The correct answer is B: Red blood cells. Hematopoiesis is the process of blood cell formation that primarily occurs in the bone marrow. Red blood cells are one of the main cell types formed during this process. Pancreatic beta cells (Choice A), gastric parietal cells (Choice C), and neurons and glial cells (Choice D) are not formed during hematopoiesis. Pancreatic beta cells are involved in insulin production, gastric parietal cells secrete gastric acid, and neurons and glial cells are part of the nervous system.
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