Nursing Elites

1. Milk and other dairy products are preferred sources of calcium because lactose enhances calcium absorption.

• A. Both the statement and the reason are correct and related.
• B. Both the statement and the reason are correct but are not related.
• C. The statement is correct, but the reason is not correct.
• D. The statement is not correct, but the reason is correct.

Correct answer: A

Rationale: Both the statement and the reason are correct and related. Milk and other dairy products are indeed preferred sources of calcium because they supply most of the available calcium. Additionally, lactose present in dairy products enhances calcium absorption, making them even more efficient sources of this essential mineral. The statement correctly identifies dairy products as preferred sources of calcium, and the reason explains how lactose contributes to better calcium absorption. The other choices are incorrect as they do not accurately assess the relationship between lactose, calcium absorption, and the preference for dairy products as sources of calcium.

2. A client has a small-bore jejunostomy and is receiving a continuous tube feeding with a high-viscosity formula. Which of the following actions should the nurse take to prevent the tubing from clogging?

• A. Replace the bag and tubing every 24 hours
• B. Flush the tubing with 10 mL water every 6 hours
• C. Administer the feeding by gravity drip
• D. Heat the formula prior to infusion

Correct answer: B

Rationale: To prevent clogging when using high-viscosity formulas in a small-bore jejunostomy, the nurse should flush the tubing with 10 mL of water every 6 hours. This action helps maintain tube patency and prevent blockages. Replacing the bag and tubing every 24 hours (Choice A) is unnecessary and does not specifically address preventing clogging. Administering the feeding by gravity drip (Choice C) or heating the formula prior to infusion (Choice D) are not effective interventions for preventing tubing clogging.

3. Which type of immunity is demonstrated by the transfer of a mother's immunoglobulin across the placenta to protect the child?

• A. Natural active immunity
• B. Natural passive immunity
• C. Artificial active immunity
• D. Artificial passive immunity

Correct answer: B

Rationale: The immunoglobulin passed from the mother to the child through the placenta is an example of natural passive immunity, making choice B the correct answer. This transfer gives the child temporary immunity to various diseases without their immune system having to work. On the other hand, natural active immunity (Choice A) occurs when the body produces its own antibodies in response to an antigen. Artificial active immunity (Choice C) is achieved through vaccinations, where the immune system is stimulated to produce antibodies against a specific disease. Artificial passive immunity (Choice D) is a temporary immunity that involves the transfer of pre-formed antibodies from another source.

4. Approximately 70 to 80 percent of acute pancreatitis cases are caused by gallstones or _____.

• A. infection
• B. alcohol abuse
• C. diabetes
• D. obesity

Correct answer: B

Rationale: Alcohol abuse is indeed a major cause of acute pancreatitis, along with gallstones, accounting for the majority of cases. While infections, diabetes, and obesity can also contribute to pancreatitis, they are not as prevalent as alcohol abuse and gallstones in causing acute pancreatitis.

5. A client at risk for iron-deficiency anemia is being taught by a nurse about optimizing dietary intake of iron. The nurse should explain that which of the following sources of iron is easiest for the body to absorb?

• A. Spinach
• B. Cantaloupe
• C. Chicken
• D. Lentils

Correct answer: C

Rationale: The correct answer is 'Chicken.' Chicken contains heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based sources like spinach, cantaloupe, and lentils. Heme iron, as present in chicken, is more bioavailable and is better absorbed by the body, making it an excellent source of iron for individuals at risk of iron-deficiency anemia. Spinach, cantaloupe, and lentils contain non-heme iron, which is not as efficiently absorbed as heme iron.

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