ATI RN
ATI Pathophysiology
1. 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.
2. Which of the following best describes the method of action of medications, such as ranitidine (Zantac), which are used in the treatment of peptic ulcer disease?
- A. Neutralize acid
- B. Reduce acid secretions
- C. Stimulate gastrin release
- D. Protect the mucosal barrier
Correct answer: B
Rationale: Medications like ranitidine (Zantac) are H2 receptor antagonists that reduce acid secretions in the stomach, helping to treat peptic ulcer disease.
3. Which personality disorder is characterized by disregard for others and manipulative behaviors?
- A. Borderline Personality Disorder
- B. Antisocial Personality Disorder
- C. Histrionic Personality Disorder
- D. Narcissistic Personality Disorder
Correct answer: B
Rationale: Antisocial Personality Disorder is the correct answer. This disorder is characterized by a pervasive pattern of disregard for and violation of the rights of others. Individuals with this disorder often display behaviors such as manipulation, exploitation, and a lack of empathy. Choice A, Borderline Personality Disorder, is characterized by unstable moods, behavior, and relationships. Choice C, Histrionic Personality Disorder, is characterized by attention-seeking behavior and excessive emotions. Choice D, Narcissistic Personality Disorder, is characterized by a grandiose sense of self-importance, a need for admiration, and a lack of empathy for others.
4. When caring for a client who is to have a line placed for hemodynamic monitoring, which statement by the newly licensed nurse indicates effectiveness of the teaching?
- A. Air should be instilled into the monitoring system after the procedure.
- B. The client should be positioned on the left side after the procedure.
- C. The transducer should be level with the second intercostal space after the line is placed.
- D. A chest x-ray is needed to verify placement after the procedure.
Correct answer: D: A chest x-ray is needed to verify placement after the procedure.
Rationale: After a line is placed for hemodynamic monitoring, it is crucial to confirm its correct placement. The definitive way to verify the placement is through a chest x-ray. This ensures that the line is appropriately positioned without complications. Options A, B, and C do not address the essential step of confirming the line's placement, making them incorrect choices.
5. What lab value is a priority in monitoring a patient with HIV?
- A. CD4 T-cell count below 180 cells/mm3
- B. Hemoglobin levels
- C. Serum albumin levels
- D. White blood cell count
Correct answer: A
Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it reflects the status of the immune system. A CD4 T-cell count below 180 cells/mm3 indicates severe immunocompromise and an increased risk of opportunistic infections. This value guides the initiation of prophylaxis for infections and the timing of antiretroviral therapy initiation. Choices B, C, and D are not the priority lab values in monitoring patients with HIV. Hemoglobin levels primarily assess for anemia, serum albumin levels reflect nutritional status, and white blood cell count is more generalized and may not specifically indicate the severity of immunocompromise in HIV patients.
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