INDICATORS OF HYDRATION STATUS
Urine color chart. The use of urine color, as measured using a urine color chart, can be helpful in monitoring
hydration status. The urine color chart has eight standardized colors, ranging from pale straw (number 1) to greenish brown (number 8). Urine that is the color of pale straw usually indicates a normal hydration status; as urine darkens, poorer hydration may be indicated (after the effect of discoloration by food or medications has been ruled out). I have recommended that for older adults, a reading of less than 4 on the color chart is preferred. The color chart is most effective when a person’s average urine color is calculated over several days to establish an individual baseline color. If urine becomes darker, further assessment can be conducted and fluids adjusted to prevent dehydration. Certain
medications (such as aspirin, warfarin, and multivitamins) and foods (such as fresh fruits and vegetables) can discolor urine; the best results have been obtained in older adults with adequate renal function.