Nursing Elites

1. The renin-angiotensin-aldosterone system plays an important role in maintaining blood pressure. Which compound in this system is most powerful at raising blood pressure?

• A. Angiotensin I
• B. Angiotensin II
• C. Angiotensin III
• D. Renin

Correct answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.

2. A nurse is providing dietary teaching to the parent of a school-age child with cystic fibrosis. Which of the following statements should the nurse make?

• A. You should offer your child high-protein meals and snacks throughout the day
• B. Your child should decrease dietary fats to less than 10% of their caloric intake
• C. Your child will need to take a 1-gram sodium chloride tablet daily throughout their lifetime
• D. You should calculate your child's carbohydrate needs based on their daily activities

Correct answer: A

Rationale: The parent should provide a well-balanced diet that is high in protein and calories for a child with cystic fibrosis. This diet helps meet the child's increased energy requirements. Offering high-protein meals and snacks throughout the day is essential to ensure adequate nutrition and energy intake for children with cystic fibrosis. Choices B, C, and D are incorrect because children with cystic fibrosis actually need a higher fat intake for proper absorption of fat-soluble vitamins, sodium chloride supplementation is not a general recommendation for all children with cystic fibrosis, and carbohydrate needs are usually based on maintaining adequate weight and growth rather than daily activities.

3. A toddler is admitted to the surgical unit for a planned closure of a temporary colostomy. Which medical prescription should the nurse question?

• A. Clear liquids today, NPO tomorrow
• B. Type and cross-match for 1 unit of packed red blood cells
• C. Rectal temperatures every 4 hours
• D. Start an intravenous line with D5NS at 20 mL per hour

Correct answer: C

Rationale: The correct answer is C. Rectal temperatures should be avoided in a toddler with a colostomy due to the risk of injury. Choices A, B, and D are appropriate medical prescriptions for a toddler undergoing colostomy closure. Choice A ensures the toddler's intake of clear liquids before being made NPO, choice B prepares for possible blood transfusion needs, and choice D initiates intravenous hydration with D5NS at an appropriate rate.

4. Which statement is not part of the developmental care approach?

• A. Family-centered care
• B. Care on a sliding payment scale
• C. Healing environment
• D. Protected sleep

Correct answer: B

Rationale: The developmental care approach emphasizes creating an environment that supports the infant's developmental needs, including family-centered care, a healing environment, and promoting protected sleep. Payment scale considerations are not a component of developmental care.

5. The nurse is teaching a patient with cancer about a new prescription for a fentanyl patch, 25mcg/hr. for chronic back pain. Which statement is the most appropriate to include in the teaching plan.

• A. You will need to change this patch every day, regardless of your pain level.
• B. This type of pain medication is not as likely to cause breathing problems.
• C. With the first patch, it will take about 24hrs before you feel the full effects.
• D. Use your heating pad for the back pain. It will also improve the patch’s effectiveness.

Correct answer: C

Rationale: Full analgesic effects can take up to 24 hours to develop with fentanyl patches. Most patches are changed every 72 hours. Has the same adverse effects as other opioids, including respiratory depression. Should avoid exposing the patch to external heat sources, because this may increase toxicity.

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