This study was carried out to ascertain whether the Bladderscan machine is accurate in the measurement of bladder volume of women in labor. This would help avoid unnecessary intervention for a significant number of women who have small bladder volumes. Fifty women had a Bladderscan measurement during labor which was compared with an immediately obtained catheter volume. The overall correlation was weak (r = 0.593) but was influenced by the absence or presence of amniotic fluid. In women with ruptured membranes the relationship between Bladderscan volume and catheter-obtained volume was good (r = 0.851), but poor if the membranes were intact (r = 0.128). The Bladderscan may have a role in measuring bladder volume in women in labor and may therefore reduce the frequency of unnecessary catheterization, with the inherent increased incidence of urinary tract infection.
- Bladder volume
- Intrapartum measurement