Nursing Elites

1. Which of the following is a poor food source of iron?

• A. Dried fruits
• B. Cheese
• C. Clams
• D. Legumes

Correct answer: B

Rationale: Iron is an essential nutrient for the body, and while it can be found in many different types of foods, the amounts can vary significantly. Cheese, while a good source of other nutrients like calcium and protein, is not a particularly rich source of iron. On the other hand, clams, legumes, and dried fruits are known to contain higher levels of iron. Therefore, among the provided choices, cheese is considered a poor source of iron. It's important to note that a balanced diet should include a variety of foods to ensure the intake of all necessary nutrients.

2. In which type of shock does the patient experience a mismatch of blood flow to the cells?

• A. Distributive
• B. Cardiogenic
• C. Hypovolemic
• D. Septic

Correct answer: A

Rationale: The correct answer is A: Distributive shock. Distributive shock is characterized by a widespread increase in vascular permeability leading to a relative hypovolemia and a mismatch of blood flow to the cells. Choice B, Cardiogenic shock, is due to the heart's inability to pump effectively. Choice C, Hypovolemic shock, results from a decrease in intravascular volume. Choice D, Septic shock, is caused by a systemic response to infection.

3. The principal cation in plasma and interstitial fluid is:

• A. Sodium
• B. Potassium
• C. Calcium
• D. Magnesium

Correct answer: A

Rationale: The principal cation in plasma and interstitial fluid is sodium. Sodium plays a crucial role in maintaining fluid balance and is the primary cation in extracellular fluids like plasma and interstitial fluid. Potassium is the primary cation within cells, not in extracellular fluids, making it an incorrect choice. Calcium and magnesium are essential minerals but are not the principal cations in plasma and interstitial fluid, so they are also incorrect choices.

4. Which test is used to monitor the degree of blood glucose control over a long period?

• A. Glucose tolerance test
• B. Glycated hemoglobin level
• C. Self-monitoring of blood glucose
• D. 24-hour urinary glucose excretion

Correct answer: B

Rationale: The correct answer is B, glycated hemoglobin level. The glycated hemoglobin (HbA1c) test measures the average blood glucose levels over the past 2-3 months, providing a long-term picture of glucose control. Choice A, the glucose tolerance test, measures how well your body processes glucose but is not specifically for long-term monitoring. Choice C, self-monitoring of blood glucose, involves daily testing by individuals, providing immediate rather than long-term information. Choice D, 24-hour urinary glucose excretion, measures the amount of glucose excreted in the urine over 24 hours and is not typically used for long-term monitoring of blood glucose control.

5. Which of the following groups of vitamins are fat-soluble?

• A. vitamins B and C
• B. vitamins A and C
• C. vitamins B, E, K, D
• D. vitamins A, E, K, D

Correct answer: D

Rationale: The correct answer is D: vitamins A, E, K, and D. Fat-soluble vitamins are absorbed along with fats in the diet and can be stored in the body's fatty tissue. Vitamins B and C are water-soluble vitamins and are not stored in the body; any excess amounts are usually excreted in the urine. Therefore, choices A, B, and C are incorrect.

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