Nursing Elites

1. What type of cells create exocrine secretions?

• A. alpha cells
• B. beta cells
• C. acinar cells
• D. plasma cells

Correct answer: C

Rationale: Acinar cells are responsible for creating exocrine secretions, such as enzymes and digestive juices. Alpha cells are found in the pancreas and are responsible for producing glucagon, beta cells produce insulin, and plasma cells are a type of white blood cell involved in immune responses. Therefore, the correct answer is acinar cells, as they specifically produce exocrine secretions.

2. A healthcare provider is caring for a patient who has experienced burns to the right lower extremity. According to the Rule of Nines, which of the following percentages most accurately describes the severity of the injury?

• A. 36%
• B. 27%
• C. 18%
• D. 9%

Correct answer: C

Rationale: According to the Rule of Nines, the right lower extremity accounts for 18% of the total body surface area. The Rule of Nines divides the body into regions, each representing 9% or a multiple of 9%, allowing for a quick estimation of the extent of burns. In this case, the correct answer is 18% as it corresponds to the percentage allocated for each lower extremity. Choices A, B, and D are incorrect as they do not match the standard allocation for the right lower extremity in the Rule of Nines.

3. A mother who has never breastfed a child before is having trouble getting the baby to latch on to the breast. The baby has lost 3% of its birth weight within the first 2 days of life. The best statement is:

• A. The baby will eventually take to the breast.
• B. I can prepare a bottle if you want to try that.
• C. A small amount of weight loss in the first few days is normal.
• D. I can arrange for the charge nurse to come and talk to you about breastfeeding.

Correct answer: C

Rationale: The correct answer is 'A small amount of weight loss in the first few days is normal.' It is important to reassure the mother that a small amount of weight loss, such as 5-10% of birth weight, in the first few days of life is considered normal for newborns. This reassurance helps alleviate the mother's concerns. Option A is incorrect because it does not address the concern about weight loss; it focuses more on the baby eventually latching on. Option B is not recommended as the first solution for breastfeeding issues, as introducing a bottle early on may lead to nipple confusion. Option D involves escalating the situation to the charge nurse when it can be addressed by providing appropriate information and support directly, making it less necessary in this scenario where reassurance and education are key.

4. The client is preparing to learn about the effects of isoniazid (INH). Which information is essential for the client to understand?

• A. Isoniazid should be taken with meals to reduce gastrointestinal upset.
• B. Prolonged use of isoniazid may result in dark, concentrated urine.
• C. Taking aluminum hydroxide (Maalox) with isoniazid can enhance the drug's effects.
• D. Consuming alcohol daily can increase the risk of drug-induced hepatitis.

Correct answer: D

Rationale: It is crucial for the client to understand that consuming alcohol while on isoniazid can increase the risk of drug-induced hepatitis. Hepatic damage can lead to dark, concentrated urine. To minimize gastrointestinal upset, it is recommended to take isoniazid with meals rather than on an empty stomach. Additionally, the client should avoid taking aluminum-containing antacids like aluminum hydroxide with isoniazid, as it can reduce the drug's effectiveness. Choice A is incorrect because isoniazid should not be taken on an empty stomach to help reduce GI upset. Choice B is incorrect, as prolonged use of isoniazid does not typically cause dark, concentrated urine. Choice C is incorrect as taking aluminum hydroxide with isoniazid does not enhance the drug's effects; in fact, it may decrease its effectiveness.

5. An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?

• A. It protects the bacteria from antibiotic and immunologic destruction.
• B. Glycocalyx neutralizes the antibiotic, rendering it ineffective.
• C. It competes with the antibiotic for binding sites on the microbe.
• D. Glycocalyx provides nutrients for microbial growth.

Correct answer: A

Rationale: Bacterial glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It plays a significant role in protecting bacteria by enhancing adherence to surfaces, resisting phagocytic engulfment by white blood cells, and preventing antibiotics from contacting the microbe. Choice A is correct because glycocalyx shields the bacteria from both antibiotics and the immune system, allowing the infection to persist. Choices B, C, and D are incorrect because glycocalyx does not neutralize antibiotics, compete for binding sites with antibiotics, or provide nutrients for microbial growth.

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