The Ireton-Jones 2002 equation is a predictive equation used to estimate the energy expenditure (calories needed) for critically ill patients.
The formula is as follows:
1784 - 11(a) + 5(w) + 244(S) + 239(T) + 804(B)
Where:
- a = age (years)
- w = weight (kg)
- S = Sex (Male = 1, Female = 0)
- T = Trauma (Present = 1, Absent = 0)
- B = Burn (Present = 1, Absent = 0)
This equation helps healthcare professionals determine appropriate caloric intake for patients receiving nutritional support.