Influence of water intake on the waiting time prior to gynecologic transabdominal ultrasound

Abstract

Objective: To investigate the effect of volume of water intake on the length of time before the bladder is sufficiently full prior to undergoing transabdominal ultrasound. Methods: Ninety-three patients scheduled for transabdominal ultrasound were enrolled between November 2007 and April 2008 and randomly allocated to 3 study groups by volume of water intake: 300, 400, and 500 mL. The total waiting time was recorded when the bladder was sufficiently full to undergo transabdominal ultrasound. The final bladder volume was measured using three-dimensional ultrasound. Results: Mean waiting times were 68.65 ± 30.12 min, 64.2 ± 26.18 min, and 54.38 ± 12.75 min for patients ingesting 300, 400, and 500 mL of water, respectively (P = 0.060). The final bladder volumes for the 3 groups were not statistically different (263.06 ± 99.21 mL, 275.37 ± 113.05 ml, and 316.17 ± 101.31 mL; P = 0.113). Conclusion: Differences in the volume of water ingested in the range of 300-500 mL did not affect the waiting time before undergoing transabdominal ultrasound.

The influence of water intake on waiting time prior to uroflowmetry: a prospective, randomized, double-blind trial

“…Another possibility is the volume of water ingested was not sufficient enough to reduce waiting time. 13 The previous study is in accordance with our study. We used the same volume of water (range 300-500 ml) and did not find significant differences in waiting time.…”

Liver stiffness and portal blood flow modifications induced by a liquid meal consumption: pathogenetic mechanisms and clinical relevance

“…The intake of the 200 ml of standardized liquid meal was scheduled at 60 min after water intake because it has been previously demonstrated that a mean time of 68.65 ± 30.12 and 54.38 ± 12.75 min are necessary to 500 and 300 ml of water to fill the bladder, respectively [19]. For this reason, for 200 ml of water, 1 h is an appropriate period of time to go through the PBF and to be eliminated by renal excretion.…”