Final answer:
In the resuscitation phase of a burn injury, a nurse should expect to see signs of circulatory shock including increased heart rate, decreased blood pressure, hyperkalemia, and decreased urine output, along with leukocytosis due to stress responses.
Step-by-step explanation:
A nurse caring for a client in the resuscitation phase of a burn injury should expect the following findings: Increased heart rate and decreased blood pressure, both indicative of circulatory shock. During this phase, hyperkalemia may occur due to the release of potassium from damaged cells. Additionally, one may observe an initial decrease in urine output related to hypovolemia. Leukocytosis is also expected as a response to the stress from the injury. Providing intravenous fluids is vital to address dehydration, and careful monitoring of electrolytes and renal function is necessary to avoid further complications.