ATI RN
ATI Pathophysiology Final Exam
1. The nurse is caring for a client with an astrocytoma. The client asks, 'What do astrocytes do in the brain?' What is the nurse's best response?
- A. Astrocytes help to nourish and support neurons in the brain.
- B. Astrocytes are a type of neuron that transmit electrical signals.
- C. Astrocytes are involved in immune responses in the brain.
- D. Astrocytes help regulate blood flow in the brain.
Correct answer: A
Rationale: Astrocytes play a crucial role in supporting and nourishing neurons by providing metabolic support, maintaining the blood-brain barrier, and regulating the chemical environment of the brain. While astrocytes are essential for brain function, they are not neurons and do not transmit electrical signals (Choice B). Astrocytes are not primarily involved in immune responses in the brain (Choice C) or in regulating blood flow in the brain (Choice D), although they indirectly influence blood flow through their support functions.
2. How did the Social Security Act of 1935 impact public health nursing?
- A. Disabled children
- B. Mentally disabled
- C. Older adults
- D. Opioid addicts
Correct answer: A
Rationale: The Social Security Act of 1935 impacted public health nursing by containing provisions for care for disabled children. This helped in improving the health and well-being of this vulnerable population. The Act did not specifically address care for mentally disabled individuals, older adults, or opioid addicts. Therefore, the correct answer is disabled children.
3. Which of the following mediates humoral immunity?
- A. Natural killer cells
- B. T cells
- C. B cells
- D. Neutrophils
Correct answer: C
Rationale: Humoral immunity is mediated by B cells, not natural killer cells, T cells, or neutrophils. B cells are responsible for producing antibodies, which are essential components of humoral immunity.
4. In assessing the client's chest, which position best shows chest expansion as well as its movements?
- A. Sitting
- B. Prone
- C. Sidelying
- D. Supine
Correct answer: A
Rationale: The position that best shows chest expansion as well as its movements is when the client is sitting. When the client is seated, their chest is in an optimal position for observing the full range of chest expansion during breathing. This position allows for easy visualization of chest movements and expansion as the client breathes in and out, providing a comprehensive assessment of respiratory function. Choice B (Prone) and Choice D (Supine) involve positions where the chest's movements and expansion are less visible and may not provide an accurate representation of respiratory function. Choice C (Sidelying) can also limit the visibility of chest expansion compared to the sitting position.
5. What is the appropriate diet for a patient with chronic kidney disease?
- A. Low protein diet
- B. High protein diet
- C. Low sodium diet
- D. Low potassium diet
Correct answer: A
Rationale: A low protein diet is the appropriate choice for a patient with chronic kidney disease because it helps to reduce the buildup of waste products in the body, which the kidneys may struggle to filter out. High protein diets can put extra strain on the kidneys by increasing the workload to eliminate the byproducts of protein metabolism. While low sodium and low potassium diets can also be important for managing certain aspects of kidney disease, the primary focus should be on controlling protein intake to lessen the burden on the kidneys.
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