Either ultrasound or urethral catheterization may be used to determine residual urine. Voiding chart. A voiding chart is a simple record of bladder volumes, the times of voiding, and the number of ...

A voiding chart (Fig. 1) is useful to detect this sort of problem. Recording the ratio of pads used during the day versus at night is also useful. Figure 1. Voiding chart example. Knowing the ...