Nursing Elites

1. Warfarin (Coumadin) is an anticoagulant and interferes with the action of:

• A. Platelets
• B. Vitamin K
• C. Calcium
• D. Vitamin B12

Correct answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin inhibits the action of vitamin K, which is essential for blood clotting. By interfering with the production of certain clotting factors, warfarin helps prevent blood clots. Choices A, C, and D are incorrect because warfarin primarily affects the vitamin K-dependent clotting factors and not platelets, calcium, or vitamin B12.

2. What causes hepatic encephalopathy?

• A. Buildup of ammonia in the body
• B. Buildup of urea in the body
• C. Fatty infiltration of the liver
• D. Jaundice

Correct answer: A

Rationale: Hepatic encephalopathy is caused by the buildup of ammonia in the body, not urea. Ammonia accumulates due to liver dysfunction, leading to neurological symptoms. Fatty infiltration of the liver may lead to conditions like non-alcoholic fatty liver disease, but it is not the direct cause of hepatic encephalopathy. Jaundice is a symptom of liver dysfunction but is not the primary cause of hepatic encephalopathy.

3. Which of the following nursing interventions is important for a client scheduled to have a Guaiac Test?

• A. Avoid turnips, radish, and horseradish 3 days before
• B. Continue iron preparation to prevent further loss
• C. Do not consume meat 12 hours before the procedure
• D. Encourage consumption of caffeine and dark-colored foods

Correct answer: A

Rationale: The correct answer is A. Turnips, radish, and horseradish are known to cause false-positive results in a Guaiac Test, which is used to detect blood in the stool. Avoiding these foods is crucial to ensure accurate test results. Choice B is incorrect as iron preparation is not directly related to the Guaiac Test. Choice C is incorrect because avoiding meat is not specifically necessary before a Guaiac Test. Choice D is incorrect as caffeine and dark-colored foods can potentially interfere with test results, so they should not be encouraged.

4. The two members of the health care team who work closely to monitor drug-nutrient interactions are:

• A. Physician and nurse
• B. Physician and pharmacist
• C. Nurse and clinical dietitian
• D. Clinical dietitian and pharmacist

Correct answer: D

Rationale: Clinical dietitians and pharmacists are the key members of the healthcare team responsible for monitoring drug-nutrient interactions. Clinical dietitians assess patients' nutritional needs and develop appropriate diets that consider medication effects, while pharmacists provide expertise on medications and their interactions with nutrients. Physicians and nurses are essential healthcare providers but typically do not have the specialized knowledge required to manage drug-nutrient interactions, making choices A, B, and C incorrect.

5. Which endocrine disorder would the nurse assess for in a client who has a closed head injury with increased intracranial pressure?

• A. Pheochromocytoma
• B. Diabetes insipidus
• C. Hashimoto’s disease
• D. Gynecomastia

Correct answer: B

Rationale: The correct answer is B, Diabetes insipidus. Diabetes insipidus can develop after a head injury due to damage to the hypothalamus or pituitary gland, leading to a deficiency in antidiuretic hormone (ADH). Pheochromocytoma (choice A) is a tumor of the adrenal gland and is not directly related to closed head injury or increased intracranial pressure. Hashimoto’s disease (choice C) is an autoimmune disorder affecting the thyroid gland, not commonly associated with head injuries. Gynecomastia (choice D) is the development of breast tissue in males and is not an endocrine disorder typically linked to closed head injuries.

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