A nurse is assessing a newborn and evaluating for developmental dysplasia of the hip (DDH). What assessment finding would indicate DDH?
Inwardly turned foot on the affected side.
Gluteal folds are asymmetrical.
Absence of Babinski sign.
Absence of stepping reflex.
The Correct Answer is B
Choice A rationale
An inwardly turned foot is not a sign of DDH. It may indicate a different condition such as clubfoot.
Choice B rationale
Asymmetrical gluteal folds are a common sign of developmental dysplasia of the hip (DDH). This occurs because the hip joint is not properly aligned, causing uneven skin folds.
Choice C rationale
The absence of the Babinski sign is not related to DDH. The Babinski sign is a reflex test used to assess neurological function.
Choice D rationale
The absence of the stepping reflex is not related to DDH. The stepping reflex is a normal newborn reflex that disappears after a few months.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
The Babinski reflex is elicited by stroking the outer edge of the sole of the newborn’s foot, moving up toward the toes. This causes the big toe to move upward and the other toes to fan out.
Choice B rationale
Turning the newborn’s head quickly to one side is used to elicit the tonic neck reflex, not the Babinski reflex.
Choice C rationale
Holding the newborn vertically and allowing one foot to touch the table surface is used to elicit the stepping reflex, not the Babinski reflex.
Choice D rationale
Clapping near the crib and making a loud noise is used to elicit the startle (Moro) reflex, not the Babinski reflex.
Correct Answer is B
Explanation
Choice A rationale
Small for gestational age (SGA) refers to newborns whose birth weight is below the 10th percentile for their gestational age.
Choice B rationale
Appropriate for gestational age (AGA) refers to newborns whose birth weight is between the 10th and 90th percentiles for their gestational age. A newborn weighing 3350 g at 39 weeks gestation falls within this range.
Choice C rationale
Low birth weight is defined as a birth weight of less than 2500 g, which does not apply to this newborn.
Choice D rationale
Large for gestational age (LGA) refers to newborns whose birth weight is above the 90th percentile for their gestational age.