Editing Pediatric Nursing (section)

=== Weight ===

* Newborns lose up to 10 percent of birth weight in the first few days of life and regain it by about 2 weeks of age. Loss beyond 10 percent, or failure to regain by 2 weeks, requires evaluation.
* Birth weight '''doubles by about 4 to 6 months''' and '''triples by 12 months'''.
* Weight roughly quadruples by 2 to 2.5 years.
* After the toddler years, children gain approximately 2 to 3 kg per year until the pubertal growth spurt.