The nurse is performing a physical assessment of a 10-year-old boy. The nurse notes that during last year's check-up, the child weighed 80 lb. According to average growth for this age group, what would be his expected current weight?

A. At 3 months, infants are not expected to have the fine motor skills necessary to pick up objects with their fingers.

B. By 3 months, infants should be able to lift their head and chest during tummy time, and the inability to do so could indicate developmental delays or other health issues.

C. Infants typically cannot sit without support until they are around 6 months old.

D. The ability to bring objects to the mouth develops around 4 months of age, so it is not expected for a 3-month-old infant to do this consistently.

A. Has a fear of strangers: Fear of strangers typically emerges around 6 to 9 months of age as part of normal social development. While it indicates cognitive and emotional growth, it does not necessarily warrant further evaluation unless it is excessive or accompanied by other concerning behaviors.

B. Uses a unidextrous grasp: By 7 months, infants typically develop a more refined pincer grasp, where they can pick up small objects using the thumb and forefinger (bidextrous grasp). A unidextrous grasp (using only one hand) may suggest a delay in fine motor development and could warrant further evaluation by a healthcare provider.

C. Babbles one-syllable sounds: Babbling is a typical milestone in language development for

infants around 6 to 9 months of age. One-syllable babbling is expected at this stage and does not necessarily indicate a need for further evaluation.

D. Shows preferences towards foods: Developing food preferences is part of normal feeding behavior for infants. While it is important to ensure a balanced diet, showing preferences towards certain foods is not typically a cause for concern at this age.