During a well-child visit for an 18-month-old toddler, which finding should a nurse report to the provider?

In assessing a child's developmental milestones, it's important to note that by 18 months, toddlers typically should be able to say a minimum of five to ten words, although some may say more. The ability to say only four words indicates a possible delay in language development that could warrant further evaluation by a healthcare provider.

On the other hand, showing a preference for one hand is usually observed around this age and falls within the range of normal developmental milestones, as hand dominance can begin to emerge. Stacking two blocks is a skill that many 18-month-olds can achieve, as it reflects their developing fine motor abilities. Walking alone is also a significant milestone that toddlers generally meet by this age, indicating normal gross motor development. Thus, the child saying only four words stands out as a developmental concern that should be reported.