Guidelines for initiating phototherapy and exchange transfusions (NICHHD Neonatal Research Network Trial) (B Morris, personal communication, 2002)
| Birth weight (g) | Aggressive management | Conservative management | ||
|---|---|---|---|---|
| Phototherapy begins | Exchange transfusion | Phototherapy begins | Exchange transfusion | |
| Enrollment is expected within 12–36 hours after birth, preferably between 12 and 24 hours. | ||||
| ASAP, As soon as possible. | ||||
| 501–750 | ASAP after enrollment | ⩾13.0 mg/dl | ⩾8.0 mg/dl | ⩾13.0 mg/dl |
| 751–1000 | ASAP after enrollment | ⩾15.0 mg/dl | ⩾10.0 mg/dl | ⩾15.0 mg/dl |









