ATI RN
Nursing Care of Children ATI
1. What is the first sign of puberty in boys?
- A. Enlargement of testes
- B. Decreased levels of testosterone
- C. Voice deepening
- D. Pubic hair
Correct answer: A
Rationale: The first sign of puberty in boys is typically the enlargement of the testes. This is due to the increase in production of testosterone, which leads to physical changes such as growth of the testes. Choice B, decreased levels of testosterone, is incorrect as puberty is marked by an increase in testosterone levels. Choice C, voice deepening, and choice D, pubic hair growth, usually occur later in the puberty process compared to testicular enlargement, making them incorrect answers.
2. In general, how much is a child that was 10 pounds at birth expected to weigh at 6 months old?
- A. Double = 20 lbs
- B.
- C.
- D.
Correct answer: A
Rationale: The correct answer is A. A child is expected to double their birth weight by 6 months. This is a common guideline used to monitor healthy growth and development in infants. Choices B, C, and D are incorrect as they do not provide the expected weight based on the given information.
3. Which reflex is expected to disappear by 4 months of age?
- A. Rooting reflex
- B. Moro reflex
- C. Babinski reflex
- D. Palmar grasp
Correct answer: B
Rationale: The Moro reflex, also known as the startle reflex, typically disappears by 4 months as the infant's nervous system matures. This reflex is important for assessing the development of the nervous system in newborns. The Rooting reflex (Choice A) is related to turning the head in response to cheek stimulation; the Babinski reflex (Choice C) involves the fanning of toes in response to foot stimulation; and the Palmar grasp (Choice D) is the curling of the fingers around an object placed in the infant's hand. These reflexes have different timelines for disappearance and are not typically expected to be gone by 4 months of age.
4. What pathologic process is believed to be responsible for the development of postinfectious glomerulonephritis?
- A. Infarction of renal vessels
- B. Immune complex formation and glomerular deposition
- C. Bacterial endotoxin deposition on and destruction of glomeruli
- D. Embolization of glomeruli by bacteria and fibrin from endocardial vegetation
Correct answer: B
Rationale: Postinfectious glomerulonephritis is typically caused by immune complex deposition in the glomeruli following a streptococcal infection. This immune response leads to inflammation and impaired kidney function.
5. At which age do most infants begin to fear strangers?
- A. 2 months
- B. 4 months
- C. 6 months
- D. 12 months
Correct answer: C
Rationale: Fear of strangers typically begins around 6 months as infants start recognizing familiar and unfamiliar faces, which is part of their social development.
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