A nurse is collecting data from a 6-month-old infant in the well-child clinic.
Which of the following findings should the nurse expect?
Lateral incisors are present.
Posterior fontanel is closed.
Infant's birth weight is tripled.
Infant sits well without support.
The Correct Answer is B
A. Lateral incisors are present: At 6 months, infants typically begin teething, but the lateral incisors usually do not appear until around 9 to 13 months. The first teeth to emerge are usually the lower central incisors.
B. Posterior fontanel is closed: The posterior fontanel, or the soft spot at the back of the baby's head, typically closes by 2 to 3 months of age. Therefore, it is expected to be closed by the time the infant is 6 months old.
C. Infant's birth weight is tripled: By 6 months, infants generally double their birth weight. Tripling of birth weight is more commonly expected by the end of the first year.
D. Infant sits well without support: Most infants begin to sit without support around 7 to 9 months. At 6 months, they may sit with some support but are not yet expected to sit well independently.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Elevated levels of MSAFP may indicate that the baby is at risk of a neural tube defect, like spina bifida.
However, further testing is required to confirm the results and determine the cause of the elevated levels.
Choice A is incorrect because low levels of MSAFP may indicate a risk for Down syndrome, not elevated levels.
Choice B is incorrect because while elevated levels of MSAFP may indicate a risk for neural tube defects, further testing is required to confirm this.
Choice D is incorrect because while repeating the test may be necessary, further testing beyond just repeating the MSAFP screening may also be required.
Correct Answer is A
Explanation
Staphylococcus aureus is the most common cause of acute osteomyelitis.
Osteomyelitis is an infection of the bone that can be caused by a variety of microorganisms, including bacteria, fungi, and mycobacteria.
Staphylococcus aureus is present in more than 50% of patients with osteomyelitis that results from contiguous spread from adjacent infected tissue or open wounds.
Choice B is not an answer because Pseudomonas aeruginosa is a less common cause of osteomyelitis and is more commonly seen in injection drug users.
Choice C is not an answer because Streptococcus B is not a common cause of osteomyelitis.
Choice D is not an answer because Escherichia coli is not a common cause of osteomyelitis.
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