ATI RN
ATI Pathophysiology
1. A male patient with erectile dysfunction has asked for a prescription for sildenafil (Viagra). Before giving this medication, the nurse should assess for which of the following conditions?
- A. History of peptic ulcer disease
- B. Use of nitrates
- C. Recent history of a stroke
- D. History of hypertension
Correct answer: B
Rationale: The correct answer is B: Use of nitrates. Sildenafil should not be used by patients taking nitrates due to the risk of severe hypotension. Nitrates can potentiate the hypotensive effects of sildenafil, leading to a significant drop in blood pressure. Assessing for the use of nitrates is crucial to avoid this potentially dangerous interaction. Choices A, C, and D are incorrect because they are not specifically contraindications for the use of sildenafil. While a history of hypertension should be considered, it is not as critical as the use of nitrates when prescribing sildenafil.
2. A 22-year-old was recently diagnosed with acquired immunodeficiency syndrome (AIDS). Which decreased lab finding would be expected to accompany this virus?
- A. CD4 helper T cells
- B. CD8 helper T cells
- C. CDC cells
- D. CDC10 cells
Correct answer: A
Rationale: In a person diagnosed with AIDS, a decrease in CD4 helper T cells is expected. These cells are critical for the immune system's proper functioning, and their reduction weakens the body's ability to fight infections. CD8 helper T cells (Choice B) are not typically decreased in AIDS. CDC cells (Choice C) and CDC10 cells (Choice D) are not relevant terms in this context, making them incorrect choices.
3. When a healthcare professional observes muscle stiffening occurring within 6 to 14 hours after death, the healthcare professional should document this finding as _____ present.
- A. Livor mortis
- B. Gangrene
- C. Algor mortis
- D. Rigor mortis
Correct answer: D
Rationale: The correct answer is D, Rigor mortis. Rigor mortis is the stiffening of muscles after death, typically beginning within 6 to 14 hours. Livor mortis (choice A) refers to the pooling of blood in the lowest tissues causing discoloration, gangrene (choice B) is the death of body tissue due to lack of blood flow, and algor mortis (choice C) is the cooling of the body after death.
4. Which of the following are characteristic, localized cardinal signs of acute inflammation? (Select ONE that does not apply.)
- A. Redness
- B. Fatigue
- C. Swelling
- D. Warmth
Correct answer: B
Rationale: The correct answers are A, C, and D. Redness, swelling, and warmth are classic signs of acute inflammation. Redness occurs due to increased blood flow, swelling is caused by leakage of fluid into tissues, and warmth is due to the vasodilation and increased blood flow in the affected area. Fatigue is not a cardinal sign of acute inflammation and is not directly associated with the inflammatory response.
5. What important point should the nurse emphasize about taking oral contraceptives consistently?
- A. Oral contraceptives must be taken at the same time each day to maintain consistent hormone levels and ensure effectiveness in preventing pregnancy.
- B. Oral contraceptives should be taken in the morning to avoid side effects at night.
- C. Oral contraceptives should be taken with food to enhance absorption.
- D. Oral contraceptives can be skipped occasionally without significant consequences.
Correct answer: A
Rationale: The correct answer is A. It is crucial for patients taking oral contraceptives to take them at the same time each day to maintain consistent hormone levels, which is essential for their effectiveness in preventing pregnancy. Choice B is incorrect as the timing of the medication is more about consistency than avoiding side effects at night. Choice C is incorrect as oral contraceptives do not necessarily need to be taken with food for absorption. Choice D is incorrect because skipping oral contraceptives occasionally can significantly reduce their effectiveness in preventing pregnancy.
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