ATI RN
ATI Pathophysiology Exam 2
1. Which of the following is the most likely indication for the use of immunosuppressant agents?
- A. Intractable seizure disorders
- B. Increased intracranial pressure
- C. Organ transplantation
- D. HIV/AIDS with multiple drug resistance
Correct answer: C
Rationale: The correct answer is C: Organ transplantation. Immunosuppressant agents are commonly used in organ transplant recipients to prevent organ rejection by suppressing the immune system. Choices A, B, and D are incorrect. Intractable seizure disorders are often managed with antiepileptic drugs, increased intracranial pressure is managed through various means like surgery and medications, and HIV/AIDS with multiple drug resistance is typically treated with antiretroviral therapy, not immunosuppressant agents.
2. A client with diabetes mellitus has just undergone a right, below-the-knee amputation following gangrene infection. A few days after the amputation, the client confides in the nurse that he still feels his right foot. Knowing the pathophysiologic principles behind this, the nurse can:
- A. administer a psychotropic medication to help the client cope with the sensation of his amputated leg.
- B. explain that many amputees have this sensation and that one theory surmises the end of a regenerating nerve becomes trapped in the scar tissue of the amputation site.
- C. call the physician and request an order for a psychological consult.
- D. educate the client that this area has an unusually abnormal increase in sensitivity to sensation but that it will go away with time.
Correct answer: B
Rationale: The correct answer is B. The sensation of feeling the amputated limb is known as phantom limb pain, which is common after amputation. One theory suggests that it occurs because the end of a regenerating nerve becomes trapped in the scar tissue at the amputation site. Administering psychotropic medication (choice A) is not the first-line treatment for phantom limb pain. Requesting a psychological consult (choice C) is premature without first addressing the known pathophysiological basis of phantom limb pain. Educating the client that the sensitivity will go away with time (choice D) is not entirely accurate as phantom limb pain can persist long-term.
3. In the ICU setting, a client transported from surgery following open heart bypass grafting will likely have his or her core temperature measured by:
- A. oral thermometer.
- B. rectal thermometer.
- C. esophageal thermometer.
- D. temporal artery thermometer.
Correct answer: C
Rationale: An esophageal thermometer is commonly used in ICU settings to accurately measure core body temperature, especially in post-surgical patients. The esophageal thermometer provides a more precise measurement of core temperature compared to other methods like oral, rectal, or temporal artery thermometers. In the ICU, accuracy in temperature measurement is crucial for detecting and responding to changes promptly, making the esophageal thermometer the preferred choice in this scenario.
4. Interpret the following arterial blood gas results: PH = 7.30; PaCO2 = 55 mmHg; HCO3 = 24 mEq/L
- A. Respiratory acidosis
- B. Metabolic acidosis
- C. Respiratory alkalosis
- D. Metabolic alkalosis
Correct answer: A
Rationale: The correct answer is A: Respiratory acidosis. In respiratory acidosis, there is an accumulation of CO2 in the blood, leading to a decrease in pH. The elevated PaCO2 of 55 mmHg in the given results indicates hypoventilation, causing respiratory acidosis. Choices B, C, and D are incorrect because the provided data does not show metabolic acidosis, respiratory alkalosis, or metabolic alkalosis.
5. What should the nurse teach the boy about anabolic steroid abuse?
- A. The ability of anabolic steroids to build muscle is greatly exaggerated in the media.
- B. Anabolic steroids are universally dangerous but are especially harmful to adolescents.
- C. The muscle mass resulting from steroid use will atrophy unless doses are continually increased.
- D. Anabolic steroids will reduce the boy's ability to perform weight-bearing exercise later in life.
Correct answer: B
Rationale: The correct answer is B because anabolic steroids are indeed universally dangerous, but they pose greater risks to adolescents due to their impact on growth and development. Choice A is incorrect because anabolic steroids do have the potential to build muscle mass, though not to the extent often portrayed in the media. Choice C is incorrect as muscle mass gained from steroid use may persist for a period even after discontinuation. Choice D is incorrect as anabolic steroids can enhance muscle performance initially, though long-term use can have adverse effects on health and not specifically on the ability to perform weight-bearing exercises.
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