B

Evidence: A prospective study comparing 1,324 early-discharge newborns (24–47 h postpartum) who received nurse home visits with 2,536 traditional-stay infants found that 99.2 % of early-discharge infants were screened, versus 96.0 % of controls, and an adequate metabolic specimen was actually obtained sooner in the early-discharge group. The authors concluded that “newborn metabolic screening is not compromised by early discharge” [Wall, 2003, PMID 12970636].