As part of her clinical rotation, a student nurse is assigned to collect data from three toddlers, all 3 years old, as well as supervise their play, rest, and hygiene. All three patients are on strict I&O; all three are potty-trained and use a urine hat for elimination. The student nurse notes the output of one of the toddlers and enters it into the computer record. A screen pops up, requesting additional documentation for color, specific gravity, and pH. The student nurse had not done this before when she was on the adult units, so she was not sure why this was important. What is the importance of this information for the student nurse?