Severe
(i.e. bowel resection, total hip replacement)
7
- 8 mL/kg/hr
Emergency
(i.e. gun shot, car accident-severe injuries)
10 - 15 mL/kg/hr
Note
Adjust IV fluids to maintain urine output of 1 mL/kg/hr.
For comparison, oliguria is defined as a urine output
of less than 0.5 mL/kg/hr.
Infuse colloid solution to replace blood loss >
20% of patient's circulating volume.
Example
A 50 kg patient is scheduled for a laparoscopic cholecystectomy.
What are the maintenance fluid requirements for this patient
during surgery? Answer: 200 mL/hr. See example
below:
Formula
Total
IVF maintenance requirements = Insensible loss + 3rd space
loss requirements
Insensible
loss = 1- 2 mL/kg/hr
3rd space loss requirements
depend on the type of trauma related to the surgical procedure
that is being performed.
