Patent Blue violet (PBV)為一種染料，主要用於找出腫瘤之淋巴腺走向，動脈注射PBV會造成假性動脈血氧飽和度監測儀讀數下降。本院則主要用於診斷輸卵管阻塞。本文為一例不孕症病婦進行輸卵管暢通術，使用劑量為PBV 3.75mg，卻引起假性動脈血氧飽和度監測儀讀數下降。希望借由本篇討論喚起大家注意PBV會干擾血氧飽和度監測儀讀的現象。
Herein we report a case in which patent blue violet (PBV) falsely decreased reading on pulse oximeter, after it was injected into blood vessel for the mapping of lymphatic drainage of tumor. In this case of chromotubation, pulse oximeter reading was found to decrease after intrauterine injection of a small dose (about 3.75 mg) of PBV. We, therefore, report this to alert those concerned about this interference in pulse oximeter results.
