Nursing Elites

1. Which of the following statements is false?

• A. People with a vitamin K deficiency experience increased clotting time
• B. The major function of vitamin E is promoting vision
• C. Vitamin D functions as a hormone
• D. Rich sources of beta-carotene include carrots, sweet potatoes, and butternut squash

Correct answer: B

Rationale: The statement that the major function of vitamin E is promoting vision is incorrect. Vitamin E primarily acts as an antioxidant, protecting cells from oxidative damage. Its role is not primarily related to vision, which is a major function of vitamin A. On the other hand, the other options are true. Vitamin K deficiency does indeed lead to increased clotting time, vitamin D functions as a hormone, and carrots, sweet potatoes, and butternut squash are rich sources of beta-carotene.

2. A nurse is caring for a client with a thiamine deficiency. Which assessment findings will the nurse expect?

• A. Tachycardia, muscle weakness, and lack of coordination
• B. Swollen lips, cracks in the corners of the mouth, and glossitis
• C. Neuropsychiatric symptoms of delusions and hallucinations
• D. Scaly rash on arms, dementia, and diarrhea

Correct answer: A

Rationale: Thiamine deficiency, also known as Vitamin B1 deficiency, can present with various symptoms. Tachycardia, muscle weakness, and lack of coordination are classic signs of thiamine deficiency due to its role in energy metabolism. Swollen lips, cracks in the corners of the mouth, and glossitis are more indicative of a deficiency in riboflavin (Vitamin B2). Neuropsychiatric symptoms of delusions and hallucinations are characteristic of niacin (Vitamin B3) deficiency. A scaly rash on the arms, dementia, and diarrhea are not typically associated with thiamine deficiency. Therefore, the correct assessment findings for a client with thiamine deficiency are tachycardia, muscle weakness, and lack of coordination.

3. Myxedema coma is a life-threatening complication of long-standing and untreated hypothyroidism with one of the following characteristics.

• A. Hyperglycemia
• B. Hypothermia
• C. Hyperthermia
• D. Hypoglycemia

Correct answer: A

Rationale: Myxedema coma is associated with hypothermia, not hyperthermia. Therefore, the correct characteristic of myxedema coma is hypothermia. This condition is a medical emergency that requires prompt recognition and intervention to prevent serious complications. The presence of hyperglycemia is not a defining characteristic of myxedema coma, making choice A the correct answer in this case. Hyperthermia and hypoglycemia are not typically seen in myxedema coma and are not consistent with the clinical presentation of this condition.

4. Much of the research investigating probiotics and intestinal illness has focused on the prevention and treatment of _____.

• A. irritable bowel syndrome
• B. Crohn's disease
• C. diverticulitis
• D. infectious diarrhea

Correct answer: D

Rationale: The correct answer is 'D: infectious diarrhea.' Research has extensively explored the use of probiotics in the prevention and treatment of infectious diarrhea. Probiotics can aid in restoring the balance of gut flora, thereby reducing symptoms. Choices A, B, and C are incorrect because while probiotics may have some benefits for these conditions, the primary focus of research in relation to probiotics and intestinal illness has been on infectious diarrhea.

5. Which individual would be at the greatest risk for deficiencies in water-soluble vitamins?

• A. An individual who regularly consumes fruits and vegetables.
• B. An individual with a high intake of dairy products.
• C. An individual who consumes a diet high in processed foods.
• D. An individual who frequently eats organ meats.

Correct answer: C

Rationale: The correct answer is 'An individual who consumes a diet high in processed foods.' Processed foods are often deficient in water-soluble vitamins such as vitamin C and B vitamins, which can lead to deficiencies. On the other hand, fruits, vegetables, and organ meats are rich sources of these vitamins, so individuals who consume these regularly are less likely to develop deficiencies. While dairy products do contain some water-soluble vitamins, they are not depleted as quickly as they are in a diet high in processed foods, making a deficiency less likely.

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