Nursing Elites

1. Why is the specific gravity for infants lower than for older children?

• A. Infants have a greater body surface area.
• B. Infants have a higher basal metabolic rate.
• C. Infants have a greater percentage of body weight that is water.
• D. Infants' kidneys are less able to concentrate urine.

Correct answer: D

Rationale: The correct answer is D because infants' kidneys are less developed compared to older children, making them less efficient at concentrating urine. This results in a lower specific gravity in infants. The other choices do not directly explain why the specific gravity is lower in infants.

2. 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.

3. In an immunization clinic, which patient will the nurse identify as not eligible to receive routine immunizations?

• A. An 8-year-old experiencing diarrhea
• B. A 2-year-old with a history of pre-term birth
• C. A 4-year-old with a fever and upper respiratory tract infection
• D. A 6-year-old who has been recently exposed to a classmate with chickenpox

Correct answer: C

Rationale: The nurse should identify the 4-year-old with a fever and upper respiratory tract infection as not eligible to receive routine immunizations. It is contraindicated to administer vaccines in the presence of moderate to severe illness, whether with or without fever, to prevent potential complications or reduced vaccine efficacy.

4. A 4-year-old child is admitted to the hospital secondary to dehydration. Laboratory tests indicate a high hemoglobin and hematocrit, and the serum sodium is below normal levels. Which condition does the nurse suspect based on the current data?

• A. Hypernatremia
• B. Metabolic acidosis
• C. Hypotonic dehydration
• D. Isotonic dehydration

Correct answer: C

Rationale: The correct answer is hypotonic dehydration. The combination of high hemoglobin and hematocrit with low serum sodium indicates hypotonic dehydration. In this condition, there is an excess of solutes relative to water, leading to higher red blood cell concentration (elevated hemoglobin and hematocrit) and low serum sodium levels.

5. Which physical assessment technique should be omitted when caring for a 2-year-old child diagnosed with Wilms' tumor?

• A. Performing range-of-motion exercises on lower extremities
• B. Palpating the abdomen
• C. Assessing for bowel sounds
• D. Percussing ankle and knee reflexes

Correct answer: B

Rationale: Palpating the abdomen should be omitted when caring for a 2-year-old child diagnosed with Wilms' tumor because it could disturb the tumor and potentially cause the malignancy to spread. The other assessment techniques are safe to perform and provide valuable information about the child's condition. Range-of-motion exercises help assess mobility and joint health, assessing for bowel sounds is important to monitor gastrointestinal function, and percussing ankle and knee reflexes can help evaluate neurological responses.

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