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8. Children receiving <80% of caloric goals by the enteral route after one week of PICU
stay can be provided with supplemental PN (Fig. 1)
9. Macronutrient intake after the acute phase should ideally be guided by REE, preferably
by IC- or ventilator-derived measurements, or, in absence of such a device, by use
of predictive equations without use of correction factors. The upper limit of caloric
intake varies with the route of nutrition and phase of critical illness (Table 1)
In conclusion, while enteral nutrition should ideally be initiated early during PICU stay,
during the acute phase of critical illness
less
parenteral nutrition
is more!