Table 1 Guidelines for red blood cell transfusion thresholds for extremely low birth weight infants
TimeGuidelineHaemoglobin(g/l)
First week<120
Days 7–28Assisted ventilation with Fio2 ⩾0.3<110
Assisted ventilation with Fio2 <0.3 or spontaneous breath<100
After day 28Assisted ventilation with Fio2 ⩾0.3<100
Assisted ventilation with Fio2 <0.3 or spontaneous breath with supplemental O2<90
Well in air<80

  • Fio2, fractional inspired oxygen.