Navigating severe end-stage renal disease (ESRD), acute-on-chronic uremic decompensation, complicated arteriovenous (AV) fistula access dysfunctions, or the vulnerable recovery phase following living-donor kidney transplantation overseas requires precise metabolic and fluid regulation. Every year, international business travelers, diplomatic personnel, overseas university researchers, and Non-Resident Indians (NRIs) encounter unexpected renal failure or travel to India's quaternary nephrology…