ATI RN
ATI Pathophysiology Exam 3
1. Which of the following is a sign of hypoglycemia?
- A. Rapid, deep breathing
- B. Increased urination
- C. Weakness and confusion
- D. High blood pressure
Correct answer: C
Rationale: The correct answer is C: Weakness and confusion. Hypoglycemia is characterized by low blood sugar levels, leading to inadequate glucose supply to the brain, resulting in symptoms like weakness and confusion. Choices A, B, and D are incorrect. Rapid, deep breathing is not typically a sign of hypoglycemia but can be seen in other conditions like respiratory issues. Increased urination is more commonly associated with conditions like diabetes mellitus, while high blood pressure is not a typical sign of hypoglycemia.
2. A nurse is teaching a class about immune deficiencies, and a person from the audience asks which cells are affected by severe combined immune deficiency (SCID) syndrome, and the nurse answers:
- A. B cell deficits
- B. T cell deficits
- C. Complement deficits
- D. B and T cell deficits
Correct answer: D
Rationale: The correct answer is D: B and T cell deficits. Severe combined immune deficiency (SCID) syndrome affects both B and T cells, leading to a severe impairment in the immune system's ability to fight infections. Choice A (B cell deficits) is incorrect because SCID affects not only B cells but also T cells. Choice B (T cell deficits) is incorrect as SCID is characterized by deficits in both B and T cells. Choice C (Complement deficits) is incorrect as SCID primarily involves B and T cell deficiencies rather than complement deficiencies.
3. An oncology nurse is providing care for an adult patient who is currently immunocompromised. The nurse is aware of the physiology involved in hematopoiesis and immune function, including the salient role of cytokines. What is the primary role of cytokines in maintaining homeostasis?
- A. Cytokines perform phagocytosis in response to bacterial and protozoal infections.
- B. Cytokines perform a regulatory role in the development of diverse blood cells.
- C. Cytokines play a significant role in the formation of all blood cells.
- D. Cytokines are produced in response to the presence of antibodies.
Correct answer: B
Rationale: The primary role of cytokines in maintaining homeostasis is to perform a regulatory function in the development of diverse blood cells. Cytokines act as signaling molecules that regulate the immune response and hematopoiesis. Choice A is incorrect because cytokines do not perform phagocytosis; they regulate immune responses. Choice C is incorrect because while cytokines are involved in the formation of some blood cells, they are not considered the basic 'building blocks' of all blood cells. Choice D is incorrect because cytokines are not formed in response to antibodies, but rather play a role in the immune response to various stimuli.
4. During a clinical assessment of a 68-year-old client who has suffered a head injury, a neurologist suspects that the client has sustained damage to her vagus nerve (CN X). Which assessment finding is most likely to lead the physician to this conclusion?
- A. The client has difficulty swallowing.
- B. The client has loss of gag reflex.
- C. The client has an inability to smell.
- D. The client has impaired eye movement.
Correct answer: B
Rationale: The correct answer is B. Damage to the vagus nerve can result in the loss of the gag reflex, which is a key indicator for the neurologist. Difficulty swallowing (Choice A) is more associated with issues related to the glossopharyngeal nerve (CN IX) and hypoglossal nerve (CN XII). An inability to smell (Choice C) is related to the olfactory nerve (CN I), and impaired eye movement (Choice D) is typically associated with damage to the oculomotor nerve (CN III), trochlear nerve (CN IV), or abducens nerve (CN VI), not the vagus nerve.
5. A nurse on a postsurgical unit is providing care for a 76-year-old female client who is two days post-hemiarthroplasty (hip replacement) and who states that her pain has been out of control for the last several hours, though she is not exhibiting signs of pain. Which guideline should the nurse use for short-term and long-term treatment of the client's pain?
- A. Pain is what the client says it is, even if she is not exhibiting outward signs.
- B. Pain should be treated only when it is associated with observable symptoms.
- C. Long-term opioid use is generally safe for elderly clients in a hospital setting.
- D. The client's pain should be reassessed after every dose of pain medication.
Correct answer: A
Rationale: Pain is a subjective experience, and the client's report of pain should be taken seriously even if there are no outward signs. Choice B is incorrect because pain can be present without observable symptoms, and waiting for observable signs may delay appropriate pain management. Choice C is incorrect because the safety of long-term opioid use in elderly clients is a complex issue and should be carefully evaluated due to the risk of adverse effects. Choice D is incorrect because while pain reassessment is important, it should not be limited to just after medication administration but should occur regularly to ensure adequate pain control.
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