An adolescent has been treated for bulimia for the past 3 months and presents for a follow-up visit. To determine if the adolescent is still purging, the nurse practitioner should order.

Rationale:
A. Most children do not achieve spontaneous resolution of enuresis by age 4; it is more common for spontaneous resolution to occur gradually over time, often by age 6–7 years.
B. Bedwetting alarms and behavioral therapy are effective first-line interventions for enuresis, helping children recognize bladder fullness and establish bladder control.
C. Nighttime (nocturnal) enuresis is more common than daytime (diurnal) enuresis in children.
D. Enuresis is usually a normal developmental variation and does not typically indicate an underlying disease in otherwise healthy children; extensive urological workup is not routinely required unless other concerning symptoms are present.

Rationale:
A. By age 3, children typically begin to distinguish between reality and make-believe, showing emerging imaginative play and understanding of fantasy versus real events.
B. Cooperation with other children develops gradually and is more consistently observed around ages 4–5.
C. Taking turns when playing structured games generally emerges closer to 4–5 years of age as social and cognitive skills mature.
D. Preferring to play with others rather than alone is more characteristic of children around 4 years old; 3-year-olds often engage in parallel play, playing alongside rather than directly with peers.