Abstract: Systems, devices, methods, and computer-readable media may use broad-range spectrophotometric analysis and/or other sensors to generate data from bodily fluids accessed via a fluid drain. These data may be utilized to analyze therapeutic efficacy, to enable early detection of complications, and to guide the clinical management of patients being treated with a fluid drain. Advantageously, these systems, devices, methods, and computer-readable media enable clinical patient care decisions to be performed in a manner that is data-driven or quantitative in nature as opposed to qualitative—e.g., via well-defined, algorithmic-based processes and/or reliable methods. As a result, these systems, devices, methods, and computer-readable media enable improved clinical outcomes, more efficiently optimized medical care, and cost savings.