Final answer:
Patients with GI loss or 3rd space losses may require a large amount of saline to maintain volume balance. The exact amount of saline needed would depend on the individual patient's condition and the extent of the losses.
Step-by-step explanation:
Patients with GI loss or 3rd space losses may require a large amount of saline to maintain volume balance.
In cases of fluid and electrolyte loss, a mixture of isotonic saline and Na lactate should be administered intravenously. The exact amount of saline needed would depend on the individual patient's condition and the extent of the losses.