ATI RN
ATI Pathophysiology Final Exam
1. A group of prison inmates developed tuberculosis following exposure to an infected inmate. On examination, tissues were soft and granular (like clumped cheese). Which of the following is the most likely cause?
- A. Coagulative necrosis
- B. Liquefactive necrosis
- C. Caseous necrosis
- D. Autonecrosis
Correct answer: C
Rationale: The correct answer is C. Caseous necrosis is characteristic of tuberculosis, where the tissue has a soft, cheese-like appearance. Coagulative necrosis involves protein denaturation, liquefactive necrosis is seen in brain infarcts and abscesses, and autonecrosis is not a recognized term in pathology, making them incorrect choices in this scenario.
2. A patient has been diagnosed with chronic renal failure. Which of the following agents will assist in raising the patient's hemoglobin levels?
- A. Epoetin alfa (Epogen, Procrit)
- B. Pentoxifylline (Pentoxil)
- C. Estazolam (ProSom)
- D. Dextromethorphan hydrobromide
Correct answer: A
Rationale: The correct answer is A: Epoetin alfa (Epogen, Procrit). Epoetin alfa is a synthetic form of erythropoietin that stimulates red blood cell production and is commonly used to treat anemia in patients with chronic renal failure. By increasing red blood cell production, epoetin alfa helps raise hemoglobin levels in these patients. Pentoxifylline (Choice B) is not indicated for raising hemoglobin levels in chronic renal failure patients; it is a peripheral vasodilator used to improve blood flow. Estazolam (Choice C) is a benzodiazepine used for treating insomnia and has no role in raising hemoglobin levels. Dextromethorphan hydrobromide (Choice D) is a cough suppressant and is not used to raise hemoglobin levels in patients with chronic renal failure.
3. During patient teaching, a young woman asks the nurse the following question: 'If I get pregnant on the 'pill,' should I continue to take it?' What is the nurse's best response?
- A. The pill has no effect on pregnancy.
- B. The pill will cause miscarriage.
- C. This is a personal choice for each woman.
- D. The pill can be harmful to the fetus and should be discontinued.
Correct answer: C
Rationale: The correct answer is 'C: This is a personal choice for each woman.' If a woman becomes pregnant while taking birth control pills, it is generally recommended to discontinue them as they can potentially harm the fetus. However, the decision to continue or discontinue the pill in case of pregnancy is ultimately a personal choice for each woman. Choice A is incorrect because birth control pills are meant to prevent pregnancy, but if a woman becomes pregnant while taking them, the situation changes. Choice B is incorrect because birth control pills do not cause miscarriage; they are intended to prevent pregnancy. Choice D is incorrect because while it is generally advised to discontinue the pill if pregnancy occurs, the decision ultimately depends on the individual circumstances and preferences of the woman.
4. A patient is starting on atorvastatin (Lipitor) for hyperlipidemia. What important instruction should the nurse provide?
- A. Take the medication at night to reduce the risk of muscle pain.
- B. Avoid consuming grapefruit juice while taking this medication.
- C. Take the medication in the morning with breakfast.
- D. Avoid taking the medication with alcohol to reduce the risk of liver damage.
Correct answer: A
Rationale: The correct answer is A. Atorvastatin should be taken at night to reduce the risk of muscle pain and other side effects. Taking it at night aligns with the body's natural rhythm of cholesterol production, optimizing its effectiveness. Choice B is incorrect because grapefruit juice can increase the risk of side effects by affecting the metabolism of atorvastatin. Choice C is incorrect as taking atorvastatin in the morning does not maximize its effectiveness. Choice D is incorrect because alcohol consumption can increase the risk of liver damage when combined with atorvastatin.
5. What physiological reaction occurs in the body with the 'Fight or flight' response?
- A. Increased heart rate
- B. Constricted pupils
- C. Decreased blood pressure
- D. Decreased heart rate
Correct answer: A
Rationale: The 'fight or flight' response is a primal physiological reaction that prepares the body to respond to a perceived threat or danger. This response triggers an increase in heart rate to pump more blood to the muscles and vital organs, preparing the body for action. Choice B, 'Constricted pupils,' is part of the 'fight or flight' response as well, as it helps improve focus and vision. Choice C, 'Decreased blood pressure,' is incorrect because blood pressure typically increases to ensure adequate circulation during the 'fight or flight' response. Choice D, 'Decreased heart rate,' is incorrect as the heart rate increases to supply more oxygen and nutrients to the body during times of stress.
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