Abstract
In the field of ophthalmology, fluorescein angiography is essential for diagnosing chorioretinopathy and evaluating treatment response. In a 44-year-old female with diabetic nephropathy receiving hemodialysis, hemorrhage of the ocular fundus was suspected, and a fluorescence contrast medium (Fluorescite for intravenous injection, 500mg or less, fluorescein) was employed. When performing dialysis after contrast enhancement, the fluorescent color of the contrast medium was visually confirmed in the drainage tube for dialytic fluid. Using a color scale that we prepared, we examined the kinetics of contrast-medium removal for 1 week based on changes in the drainage color. The color scale values were 90/50 at the start/completion of observation on Day1, 20/10 at the start/completion of observation on Day3, and 0/0 at the start/completion of observation on Day5, respectively. However, the fluorescent color of the contrast medium was faintly observed in dialytic fluid collected in a 500mL bottle at the end of the dialysis session on day5.
