ATI RN
ATI Pathophysiology Exam 1
1. A client with a history of hypertension presents with a severe headache and blurred vision. What is the nurse's priority action?
- A. Administer pain relief medication.
- B. Obtain a stat head CT scan.
- C. Administer antihypertensive medications as prescribed.
- D. Call the healthcare provider immediately.
Correct answer: C
Rationale: The correct answer is to administer antihypertensive medications as prescribed. In a client with a history of hypertension presenting with severe headache and blurred vision, these symptoms could indicate a hypertensive crisis. The priority action is to lower the blood pressure promptly to prevent complications such as stroke, heart attack, or organ damage. Administering antihypertensive medications is crucial in this situation. Administering pain relief medication (Choice A) may temporarily alleviate symptoms but does not address the underlying issue of elevated blood pressure. Obtaining a stat head CT scan (Choice B) may be necessary to rule out other causes but should not delay the administration of antihypertensive medications. Calling the healthcare provider immediately (Choice D) is important but may not address the immediate need to lower blood pressure in a hypertensive crisis.
2. Which of the following imbalances is found in clients with syndrome of inappropriate antidiuretic hormone (SIADH)?
- A. Decreased insulin production
- B. Decreased antidiuretic hormone (ADH) production
- C. Increased secretion of antidiuretic hormone (ADH)
- D. Increased production of insulin
Correct answer: C
Rationale: The correct answer is C: Increased secretion of antidiuretic hormone (ADH). Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of ADH, which leads to water retention and dilution of blood sodium levels. Choices A, B, and D are incorrect because SIADH is not associated with decreased insulin production, decreased ADH production, or increased production of insulin.
3. When the body produces antibodies against its own tissue, the condition is called
- A. Alloimmunity
- B. Opsonization
- C. Autoimmunity
- D. Hypersensitivity
Correct answer: C
Rationale: The correct answer is C, autoimmunity. Autoimmunity refers to the immune system attacking the body's own tissues. Alloimmunity (choice A) is the immune response to tissues of another individual of the same species. Opsonization (choice B) is the process where pathogens are marked for destruction by immune cells. Hypersensitivity (choice D) refers to excessive or inappropriate immune responses.
4. Cellular swelling is:
- A. Irreversible
- B. Evident early in all types of cellular injury
- C. Manifested by decreased intracellular sodium
- D. None of the above is correct
Correct answer: B
Rationale: Cellular swelling is indeed evident early in all types of cellular injury. This occurs due to the influx of water into the cell, leading to swelling. Choice A is incorrect because cellular swelling is reversible if the injury is not severe. Choice C is incorrect because cellular swelling is not manifested by decreased intracellular sodium; in fact, it is associated with increased intracellular sodium due to water influx. Choice D is incorrect as option B is the correct statement.
5. Which of the following cell types would be the first to aid in killing bacteria to prevent infection in his hand?
- A. Eosinophils
- B. Neutrophils
- C. Leukotrienes
- D. Monocytes
Correct answer: B
Rationale: Neutrophils are the first responders to a bacterial infection. They are phagocytes that engulf and destroy bacteria, playing a crucial role in the early stages of the immune response. Eosinophils are primarily involved in combating parasitic infections and allergic reactions, not bacterial infections. Leukotrienes are signaling molecules that contribute to inflammation and immune responses, but they are not cells. Monocytes are another type of white blood cell that differentiates into macrophages and dendritic cells, playing a role in immune response but not as immediate as neutrophils.
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