Nursing Elites

1. Which condition is characterized by a lack of antidiuretic hormone (ADH)?

• A. Diabetes mellitus
• B. Diabetes insipidus
• C. Cushing's disease
• D. Hyperthyroidism

Correct answer: B

Rationale: The correct answer is B, Diabetes insipidus. Diabetes insipidus is characterized by a lack of antidiuretic hormone (ADH), leading to excessive urination and thirst. Choice A, Diabetes mellitus, is a different condition characterized by high blood sugar levels. Choice C, Cushing's disease, is caused by prolonged exposure to high levels of cortisol. Choice D, Hyperthyroidism, involves an overactive thyroid gland producing excess thyroid hormones.

2. A 25-year-old just had a colonoscopy and was diagnosed with Crohn disease. Which of the following is consistent with this diagnosis?

• A. Right lower quadrant cramping
• B. Severe bloody diarrhea
• C. Nausea and vomiting
• D. Mostly affects the rectum

Correct answer: A

Rationale: Crohn's disease is a type of inflammatory bowel disease that can affect any part of the digestive tract. Right lower quadrant cramping is consistent with Crohn's disease as it commonly involves the terminal ileum, which is located in the right lower quadrant of the abdomen. Severe bloody diarrhea is more characteristic of ulcerative colitis, another type of inflammatory bowel disease. Nausea and vomiting are not specific symptoms of Crohn's disease. Crohn's disease can affect any part of the digestive tract, not just the rectum, so it is not accurate to say it mostly affects the rectum.

3. In menopausal women, what is the primary goal of estrogen therapy?

• A. To relieve menopausal symptoms
• B. To prevent osteoporosis
• C. To increase calcium absorption
• D. To maintain bone strength

Correct answer: B

Rationale: The primary goal of estrogen therapy in menopausal women is to prevent osteoporosis by maintaining bone density. Estrogen helps in preserving bone mass and reducing the risk of fractures. While estrogen therapy may alleviate some menopausal symptoms, such as hot flashes, its primary focus is on bone health rather than symptom management. Increasing calcium absorption and maintaining bone strength are outcomes of preventing osteoporosis rather than the primary goal of estrogen therapy.

4. The parents of a 3-year-old boy have brought him to a pediatrician for assessment of the boy's late ambulation and frequent falls. Subsequent muscle biopsy has confirmed a diagnosis of Duchenne muscular dystrophy. Which teaching point should the physician include when explaining the child's diagnosis to his parents?

• A. Your child may develop breathing difficulties as the disease progresses.
• B. Your child is likely to benefit from physical therapy and exercise.
• C. This condition can be cured with early intervention and treatment.
• D. The disease is caused by inflammation in the muscles, which leads to weakness.

Correct answer: A

Rationale: The correct teaching point that the physician should include when explaining Duchenne muscular dystrophy to the parents is that 'Your child may develop breathing difficulties as the disease progresses.' Duchenne muscular dystrophy is a progressive condition that affects muscle strength, including respiratory muscles, leading to breathing difficulties as the disease advances. Choice B is incorrect because while physical therapy and exercise can help maintain muscle function and mobility, they do not cure the condition. Choice C is incorrect because Duchenne muscular dystrophy is a genetic disorder with no known cure. Choice D is incorrect as Duchenne muscular dystrophy is primarily characterized by a lack of dystrophin protein due to genetic mutations, not inflammation in the muscles.

5. Canola oil produced from genetically modified canola plants altered to be herbicide-resistant is an example of a:

• A. pesticide-free food.
• B. saturated fat food.
• C. genetically modified food.
• D. product that is pure.

Correct answer: C

Rationale: The correct answer is 'genetically modified food.' Canola oil derived from genetically modified canola plants falls into this category because the plant's genome has been altered to exhibit herbicide resistance. This genetic modification makes it a genetically modified food. Choice A, 'pesticide-free food,' is incorrect as the genetic modification is to resist herbicides, not pesticides. Choice B, 'saturated fat food,' is incorrect as it does not accurately describe the genetic modification of the canola plants. Choice D, 'product that is pure,' is too vague and does not address the genetic modification aspect of the canola plants.

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