Nursing Elites

1. Which of the following describes the etiology of a cerebrovascular accident (CVA)?

• A. A blow to the head from a hard object
• B. Lack of blood flow to part of the brain
• C. Excessive exercise, such as running
• D. A ruptured artery in the heart

Correct answer: B

Rationale: The correct answer is B. A cerebrovascular accident (CVA), or stroke, is often caused by a lack of blood flow to part of the brain. This leads to damage in the brain tissue due to the deprived oxygen and nutrients. Choices A, C, and D are incorrect. A blow to the head from a hard object can cause a traumatic brain injury but is not the etiology of a CVA. Excessive exercise like running does not typically lead to a stroke. A ruptured artery in the heart may result in a heart attack, not a cerebrovascular accident.

2. What causes osteoporosis?

• A. Poor nutrition in infancy
• B. Regularly weight-bearing exercise
• C. Bone loss, frequently during aging
• D. Cerebral palsy and associated disorders

Correct answer: C

Rationale: The correct answer is C. Osteoporosis is commonly caused by bone loss that occurs with aging, leading to brittle bones. Choice A, poor nutrition in infancy, is not a direct cause of osteoporosis. Choice B, regularly weight-bearing exercise, actually helps in maintaining bone density and strength, reducing the risk of osteoporosis. Choice D, cerebral palsy and associated disorders, is not a common cause of osteoporosis.

3. What can multiple dark bands on the nails indicate?

• A. They are considered a normal variant.
• B. They can be associated with malignant melanoma.
• C. They are indicative of a nail fungus.
• D. They are associated with aging.

Correct answer: B

Rationale: Multiple dark bands on the nails can be associated with malignant melanoma, a serious type of skin cancer. While dark bands on the nails can sometimes be a normal variant, they should not be ignored as they could also be a sign of a serious condition like melanoma. Nail fungus typically presents with different symptoms such as thickened, discolored, or brittle nails. Dark bands on the nails are not directly associated with aging.

4. What signs and symptoms most likely prompted this patient to initially seek care?

• A. Malaise and fatigue
• B. Severe diarrhea
• C. Intermittent fever
• D. Dizziness and confusion

Correct answer: B

Rationale: The correct answer is B: Severe diarrhea. A patient who has recently returned from a trip to Nepal with a nongovernmental organization and is seeking care for amebiasis would most likely have been prompted by the symptom of severe diarrhea. Amebiasis is an infection caused by the parasite Entamoeba histolytica, commonly transmitted through contaminated food or water sources in developing countries like Nepal. The hallmark symptom of amebiasis is dysentery, which is characterized by severe diarrhea with blood or mucus in the stool. Malaise and fatigue (choice A) are nonspecific symptoms that may accompany many illnesses and are not specific to amebiasis. Intermittent fever (choice C) is not a typical presenting symptom of amebiasis, which primarily manifests with gastrointestinal symptoms. Dizziness and confusion (choice D) are also not typical symptoms associated with amebiasis.

5. How does influenza immunization produce immunity?

• A. The virus from the vaccine remains in the body until the end of the season
• B. An attenuated virus causes immune system suppression and triggers immunity
• C. The body identifies the virus and develops antibodies against the virus
• D. The vaccine remains in the injection site and produces immune cells

Correct answer: C

Rationale: The correct answer is C. Influenza immunization works by introducing a weakened or inactivated form of the virus into the body, allowing the immune system to recognize it as foreign. This recognition triggers the production of antibodies specific to the virus. Choice A is incorrect as the virus in the vaccine does not remain in the body until the end of the season. Choice B is incorrect as an attenuated virus does not cause immune system suppression but rather stimulates an immune response. Choice D is incorrect because the vaccine does not stay at the injection site but rather prompts a systemic immune response throughout the body.

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