How can a nurse assess that a burn patient has entered the fluid mobilization or diuretic phase?

The correct assessment for determining whether a burn patient has entered the fluid mobilization or diuretic phase is an increase in urine output. This phase typically begins about 48 to 72 hours after the burn injury and is characterized by changes in hemodynamics and fluid shifts.

During the initial resuscitation phase, the body retains fluid due to inflammation and fluid leakage into the tissues. Once the patient enters the fluid mobilization phase, the excess fluid that has accumulated in the interstitial tissue begins to return to the vascular space, and diuresis occurs as the kidneys start to excrete the excess fluid. This results in an observable increase in urine output, which is a key indicator that the patient’s body is beginning to stabilize and that renal function is returning to normal.

Monitoring urine output is critical in managing burn patients, as it reflects the status of their fluid balance and kidney function. Adequate urine output is indicative of proper kidney perfusion and helps to prevent complications associated with acute kidney injury.

While other vital signs might show changes during this phase, they are not as definitive in indicating the entry into fluid mobilization. For instance, changes in blood pressure or heart rate can fluctuate for various reasons, including stress from pain, while a