Masui. The Japanese journal of anesthesiology
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Comparative Study
[Comparison between T-connecter and three-way stopcock as a portal for obtaining samples from indwelling catheter].
The accuracy of measurements on a sample obtained via either T-connecter or three-way stopcock connected directly with an indwelling catheter was comparatively evaluated. The sample was obtained through them after drawing glucose standard fluid (100 mg.dl-1) into a catheter which was primed with saline. ⋯ The results showed that both sample volume and discarded volume required smaller amount with a T-connecter than with a three-way stopcock to obtain more accurate measurements. The results also suggested that remaining discard aliquot in the connecting port of the three-way stopcock might influence the accuracy of the obtained sample when the sample volume was small.