Nursing Elites

1. What is the first sign of puberty in girls?

• A. Acne
• B. Hair growth in the pubic area and underarms
• C. Thelarche
• D. Menarche

Correct answer: C

Rationale: The correct answer is C, Thelarche. Thelarche refers to the onset of breast development, which is typically the first sign of puberty in girls. This occurs before menarche (the first menstrual period). Choices A and B, acne and hair growth in the pubic area and underarms, are not the first signs of puberty in girls. While acne can be a common occurrence during puberty, it usually appears after other physical changes. Hair growth in the pubic area and underarms also occurs later in the puberty process.

2. The nurse is caring for a child with acute renal failure. What laboratory findings should the nurse expect to find? (Select all that apply.)

• A. Hyponatremia
• B. Hyperkalemia
• C. All are applicable
• D. Elevated blood urea nitrogen level

Correct answer: C

Rationale: In acute renal failure, laboratory findings typically include hyperkalemia, hyponatremia, and elevated blood urea nitrogen (BUN) levels due to the kidneys' inability to excrete waste and balance electrolytes. Metabolic alkalosis is less common, with metabolic acidosis being more typical.

3. The nurse is taking vital signs on a group of assigned preschool-aged children. Which assessment finding would indicate the need for further action?

• A. Respiratory rate of 20 breaths per minute
• B. Heart rate of 89 beats per minute
• C. Heart rate of 120 beats per minute
• D. Respiratory rate of 24 breaths per minute

Correct answer: C

Rationale: A heart rate of 120 beats per minute is high for a preschool-aged child and may indicate an underlying issue that requires further assessment. A respiratory rate of 20 breaths per minute (choice A) is within the normal range for preschool children. Similarly, a heart rate of 89 beats per minute (choice B) falls within the expected range. A respiratory rate of 24 breaths per minute (choice D) is slightly elevated but may not be as concerning as a heart rate of 120 beats per minute.

4. At which age does an infant start to recognize familiar faces and objects, such as his or her own hand?

• A. 1 month
• B. 2 months
• C. 3 months
• D. 4 months

Correct answer: C

Rationale: By 3 months, infants begin to recognize familiar faces and objects, such as their own hands. This marks the early stages of visual recognition and cognitive development.

5. Which parental statement indicates correct understanding of information presented regarding the prevention of iron deficiency anemia in infants?

• A. "We will add green leafy vegetables to our child’s low-iron formula."
• B. "We will discontinue the use of vitamin C supplements by 6 months of age."
• C. "We will begin an iron-fortified infant cereal at 4 to 6 months of age."
• D. "We will introduce cow’s milk by 6 months of age."

Correct answer: C

Rationale: The correct answer is C. Introducing iron-fortified cereal between 4 to 6 months of age is a recommended practice to prevent iron deficiency anemia in infants. Iron-fortified infant cereals are a good source of iron for infants. Choices A and B are incorrect because adding green leafy vegetables to low-iron formula and discontinuing vitamin C supplements do not directly address the prevention of iron deficiency anemia. Choice D is incorrect because cow's milk should be avoided before 12 months of age as it is low in iron and can lead to intestinal blood loss, increasing the risk of iron deficiency anemia.

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