ATI RN
Final Exam Pathophysiology
1. What instruction should the nurse include in this patient's health education regarding chloroquine phosphate (Aralen) for malaria prophylaxis?
- A. “Take your pill on the same day each week.”
- B. “Watch out for any unusual rash on your trunk and arms, but this isn't cause for concern.”
- C. “Remember to take your chloroquine on an empty stomach.”
- D. “We'll provide you with enough syringes and teach you how to inject the drug.”
Correct answer: A
Rationale: The correct instruction for the nurse to include in this patient's health education regarding chloroquine phosphate (Aralen) for malaria prophylaxis is to “Take your pill on the same day each week.” This is essential because chloroquine is typically taken once a week on the same day to ensure consistent protection against malaria. Choice B is incorrect because while rashes are a possible side effect of chloroquine, they are not a usual occurrence and should be reported to the healthcare provider. Choice C is incorrect because chloroquine does not need to be taken on an empty stomach. Choice D is incorrect as chloroquine is typically administered orally, not by injection.
2. A patient with a history of hypertension presents with a severe headache, confusion, and visual disturbances. His blood pressure is 220/120 mm Hg. Which of the following is the most likely diagnosis?
- A. Migraine
- B. Cluster headache
- C. Hypertensive emergency
- D. Tension headache
Correct answer: C
Rationale: A patient with a history of hypertension presenting with a severe headache, confusion, and visual disturbances, along with a blood pressure of 220/120 mm Hg, likely has a hypertensive emergency. In this situation, the severely elevated blood pressure can lead to end-organ damage, causing symptoms such as headache and confusion. Migraine and tension headaches are not associated with such high blood pressure levels. Cluster headaches typically do not present with visual disturbances and confusion in the setting of severe hypertension.
3. A 20-year-old college student has presented to her campus medical clinic for a scheduled Pap smear. The clinician who will interpret the smear will examine cell samples for evidence of:
- A. Changes in cell shape, size, and organization
- B. Presence of unexpected cell types
- C. Ischemic changes in cell sample
- D. Abnormally high numbers of cells
Correct answer: A
Rationale: The correct answer is changes in cell shape, size, and organization (Choice A). Pap smears are performed to detect potential precancerous or cancerous conditions by examining the cells for any abnormalities in their shape, size, or organization. This helps in identifying early signs of cervical cancer. Choices B, C, and D are incorrect because Pap smears primarily focus on detecting cellular changes associated with cancer, not unexpected cell types, ischemic changes, or abnormally high numbers of cells.
4. Why is the administration of benzene hexachloride (Lindane) for the treatment of scabies applied in small quantities?
- A. Excessive applications will lead to central nervous system toxicity.
- B. Excessive applications will cause irritation, rash, and inflammation.
- C. Excessive applications will cause headaches, dizziness, and diarrhea.
- D. Excessive applications will lead to anorexia and cachexia.
Correct answer: A
Rationale: The rationale for instructing the patient to apply benzene hexachloride (Lindane) in small quantities for scabies treatment is that excessive applications can lead to central nervous system toxicity. Lindane is a neurotoxin, and overuse or incorrect application can result in adverse effects on the central nervous system, such as seizures, dizziness, and even death. Choices B, C, and D are incorrect because they do not reflect the specific toxic effects associated with Lindane, which primarily affects the central nervous system rather than causing skin irritation, gastrointestinal symptoms, or metabolic issues.
5. What condition is a result of Polycythemia Vera, which involves excess red blood cells?
- A. Tissue ischemia & necrosis
- B. Chronic pancreatitis
- C. Low blood pressure & heart rate
- D. Increased numbers of infections
Correct answer: A
Rationale: Polycythemia Vera, characterized by excess red blood cells, can cause tissue ischemia and necrosis due to the increased blood viscosity. This condition restricts blood flow, leading to inadequate oxygen delivery to tissues and subsequent tissue damage. Choices B, C, and D are incorrect because they are not directly associated with the pathophysiology of Polycythemia Vera.
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