Tracking fluid after a kidney transplant

16 June 2026

Coming home after a kidney transplant is a big adjustment. Alongside new medications and a schedule of appointments, many people are asked by their team to keep an eye on their fluids and their weight in the early weeks. This post is about the practical side of that — the writing-down — and not about the clinical side, which belongs entirely with your own transplant team.

What teams often ask people to record

Every team works slightly differently, so the first rule is simple: follow the instructions you were given when you left hospital. Commonly, people are asked to note how much they drink and how much they pass, and to weigh themselves at the same time each day. You may also have been given a daily fluid figure to work around. Whatever the specifics, the records are most useful when they are complete and consistent, which is precisely the part that gets hard once normal life resumes.

Make the logging the easy bit

The early weeks are tiring, and a paper chart is easy to let slip. Keeping the record on your phone removes most of the friction. With Kidney Tracker you log intake and output in millilitres as you go, and you can save the amounts you use most so a familiar drink is a single tap. The Today screen keeps a live running total of intake and output and shows your net balance, so there is no column of figures to add up when you are worn out at the end of the day.

If you were given a daily fluid figure, you enter it as your own target and the app totals against it. It is worth being clear about what that means: the target is a number you choose, taken straight from your team's instructions. Kidney Tracker does not decide it for you, does not tell you what is normal, and does not give advice of any kind. It keeps the tally; the clinical judgement stays where it belongs.

Daily weight, kept in the same place

If weighing daily is part of your routine, record it each morning and the app plots it over the days and weeks since you came home. Seeing the line rather than a list makes a steady change easy to notice, and because your weight sits in the same app as your fluid records, you are not juggling a separate notebook. A configurable day-start hour lets your daily totals line up with the 24-hour window your clinic uses rather than resetting at midnight.

Ready for frequent clinic visits

The early period after a transplant usually means appointments come thick and fast. That is exactly when a tidy record earns its keep. You can turn your entries into a printable, shareable report on your device and bring it along, instead of trying to recall the last few days at the desk. The report is generated on your iPhone and goes only where you choose to send it — the app keeps no copy and the developer never sees it.

Private, with your other records alongside

There is no account and nothing is uploaded; everything stays on your own device. Because so much is new at once, it helps that the same app can also hold your medications and local reminders, your blood pressure readings and the blood results your clinic reads back to you — all in one private place. As the weeks settle and your team adjusts what they want you to track, the record adjusts with you.

If you would like to see how the app fits this stage, the kidney transplant page goes into more detail about keeping your records together at home.

Kidney Tracker is a personal record-keeping tool. It is not a medical device and does not provide medical advice — always follow your own clinical team.