Nursing Elites

1. A child is being treated for dehydration with intravenous fluids. The child currently weighs 13 kg and is estimated to have lost 7% of his normal body weight. The nurse is double-checking the IV rate the healthcare provider prescribed. The formula the healthcare provider used was for maintenance fluids: 1000 mL for 10 kg of body weight plus 50 mL for every kilogram over 10 for 24 hours. Replacement fluid is the percentage of lost body weight � 10 per kg of body weight. According to the calculation for maintenance plus replacement fluid, which hourly IV rate will the nurse implement for 24 hours?

• A. 88 mL/hr
• B. 86 mL/hr
• C. 81 mL/hr
• D. 83 mL/hr

Correct answer: B

Rationale: For 13 kg, the maintenance fluid is 1150 mL (1000 mL for first 10 kg + 3*50 mL for the remaining 3 kg). Replacement fluid is 910 mL (0.07 * 13000 mL). Total fluid is 2060 mL, divided by 24 hours is 86 mL/hr.

2. What does a Z-score of -3.00 indicate?

• A. The child's score indicates he is ahead of his peers and performing well
• B. The child's score places him within normal limits on this test item
• C. The test is inconclusive
• D. The child's score falls below the majority of his peers on this test

Correct answer: D

Rationale: A Z-score of -3.00 indicates that the child's performance is significantly below the average of their peers. It represents an extreme low score, indicating a substantial deviation from the mean performance of the group.

3. 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.

4. What important information should the nurse provide to a patient taking a tetracycline antibiotic?

• A. Take the medication on an empty stomach.
• B. Avoid exposure to sunlight and tanning beds.
• C. Do not take the medication with milk or other dairy products.
• D. The medication may cause permanent staining of your teeth.

Correct answer: D

Rationale: The correct answer is D. Tetracycline antibiotics can bind to calcium in dairy products, decreasing the absorption of the antibiotic. This may result in reduced effectiveness of the medication. Additionally, tetracycline antibiotics can cause permanent staining of teeth, especially in children below 8 years of age and in pregnant women. Therefore, it is crucial for the patient to be aware of this potential side effect and to discuss any concerns with their healthcare provider. Choices A, B, and C are incorrect because tetracycline antibiotics should be taken with food to reduce gastrointestinal upset, exposure to sunlight is not a significant concern with tetracycline antibiotics, and the issue with dairy products is related to calcium binding and reduced absorption rather than an issue of empty stomach intake.

5. Which parental statement at the end of a teaching session by the nurse indicates correct understanding of colostomy stoma care for the infant client?

• A. We will change the colostomy bag with each wet diaper.
• B. We will expect a moderate amount of bleeding after cleansing the area around the stoma.
• C. We will watch for skin irritation around the stoma.
• D. We will use adhesive enhancers when we change the bag.

Correct answer: C

Rationale: Choosing option C, 'We will watch for skin irritation around the stoma,' demonstrates understanding of proper colostomy stoma care. Monitoring for skin irritation is crucial as it can indicate issues such as leakage, improper sealing, or infection. Options A, B, and D are incorrect. Changing the colostomy bag with each wet diaper (option A) is unnecessary unless indicated by a healthcare provider to prevent skin breakdown. Expecting bleeding after cleansing (option B) is not normal and may signal a problem that requires medical attention. Using adhesive enhancers (option D) should be done based on specific recommendations and not necessarily with every bag change.

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