A 4-month-old boy is brought to the physician for a well-child examination. He was born at 39 weeks gestation via spontaneous vaginal delivery and is exclusively breastfed. He weighed 3,400 g (7 lb 8 oz) at birth. At the physician's office, he appears well. His pulse is 146/min, the respirations are 39/min, and the blood pressure is 78/44 mm Hg. He weighs 7.5 kg (16 lb 9 oz) and measures 65 cm (25.6 in) in length. The remainder of the physical examination is normal. Which of the following developmental milestones has this patient most likely met?
ASits with support of pelvis
BGrasps small objects between thumb and finger
CTransfers objects from hand to hand
DIntentionally rolls over
EBounces actively when held in standing position
A 13-month-old girl is brought to the physician for a well-child examination. She was born at 38 weeks' gestation. There is no family history of any serious illnesses. She cannot pull herself to stand from a sitting position. She can pick an object between her thumb and index finger but cannot drink from a cup or feed herself using a spoon. She comes when called by name and is willing to play with a ball. She cries if she does not see her parents in the same room as her. She coos “ma” and “ba.” She is at the 50th percentile for height and weight. Physical examination including neurologic examination shows no abnormalities. Which of the following is the most appropriate assessment of her development?
AFine motor: normal | Gross motor: delayed | Language: normal | Social skills: delayed
BFine motor: normal | Gross motor: delayed | Language: delayed | Social skills: normal
CFine motor: delayed | Gross motor: normal | Language: delayed | Social skills: normal
DFine motor: delayed | Gross motor: delayed | Language: normal | Social skills: normal
EFine motor: delayed | Gross motor: normal | Language: normal | Social skills: delayed
During subject selection for an infant neurological development study, a child is examined by the primary investigator. She is at the 80th percentile for length and weight. She has started crawling. She looks for dropped objects. She says mama and dada non-specifically. She can perform the pincer grasp. Which of the following additional skills or behaviors would be expected in a healthy patient of this developmental age?
APulls up to stand
BSays at least 1 word clearly
CTurns pages in a book
DPoints to 3 body parts
EEngages in pretend play
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