Final answer:
The volume expander should generally be administered over an hour, not as fast as possible, to prevent complications. An increase in urine output after drinking a large glass of water can be expected within about 30 minutes.
Step-by-step explanation:
The question about the volume expander administration period involves clinical knowledge typically taught in healthcare-related courses. Volume expanders, such as intravenous fluids, are usually not administered 'as fast as possible' except in certain emergency situations (e.g., severe dehydration or hypovolemic shock). The rate can vary based on the fluid being given, the clinical situation, and the individual patient's need. However, for non-emergent situations, it is common practice to administer intravenous fluids over a period of time like 'over an hour' to ensure physiological stability and prevent potential complications from rapid fluid overload. Without specific instructions from a healthcare professional or relevant clinical guidelines, it is not advisable to administer volume expanders rapidly.
Concerning the question of how soon a person will start to increase their urine output after drinking a large glass of water, it typically occurs within about 30 minutes. Kidneys start to filter the water consumed, resulting in increased urine production and subsequent excretion. This can be subject to individual variation, depending on factors like hydration status, kidney function, and other physiological conditions.