John recently suffered a gunshot wound to the abdomen and has undergone surgery. He is 37
years old, 6'0", and weighs 200 lbs. John is currently on a medical ventilator to help him
breathe.
1. Describe the metabolic response to injury (ebb phase and flow phase). If you do not
understand certain terms (such as hemodynamic instability), please attempt to do further
research
2. Explain what is occurring in the flow phase that requires increased calorie and protein needs.
3. Indirect calorimetry is not available to determine John's energy requirements, so we must use
the Ireton-Jones Energy Expenditure Equation. Calculate energy requirements for John using
Ireton-Jones Energy Expenditure Equation. Show calculations. Keep in mind all the factors that
are in John's case (ventilator dependent, weight, age, gender, trauma present).
4. Calculate a range of protein requirements for John. Show calculations.
5. John is having trouble consuming foods orally, but his GI system is functional. Name the type of nutrient delivery you believe John needs. Why is this delivery method suited for John?
