Subcutaneous Fluid Tracker for CKD Cats
If your cat has chronic kidney disease, you probably give fluids under the skin at home. Remewdy tracks volume in milliliters, injection site rotation, and session duration so you never have to guess what you did yesterday, and your vet gets the real picture at the next visit.
Chronic kidney disease affects 30 to 40 percent of cats over the age of 10. Many of those cats live long and comfortable lives on a routine of home subcutaneous fluids, a phosphate binder, an anti-nausea medication, and sometimes an appetite stimulant. The routine works when it is consistent. Tracking is how you stay consistent.
Why SC Fluid Tracking Matters
Three things change when you write down every fluid session instead of relying on memory.
Site rotation prevents scarring
If you always put the needle in the same spot, the subcutaneous tissue builds scarring and the fluid absorbs slower each time. 81 percent of CKD owners default to the shoulder blades only (Cooley et al., 2018). Rotating across left shoulder, right shoulder, and mid-back keeps absorption steady and tissue healthy. A visible rotation log makes the next site choice automatic, not a guess.
Volume accuracy helps the vet dose correctly
When you come in for a recheck, your vet asks how many milliliters your cat has been getting and how often. If you answer from memory, the dose adjustment is built on memory. If you hand your vet the log, the dose adjustment is built on the real number. That difference shows up in bloodwork and in how your cat feels.
Consistent timing helps you spot trouble early
A fluid session that suddenly takes twice as long to run, or a site that develops a soft swelling after every session on the right shoulder, are early signals. You only see those signals if the duration and site were captured last time. Memory loses small changes. A log does not.
How Remewdy Tracks SC Fluids
After you mark a fluid dose as given in the Today view, Remewdy opens a small sheet with three fields. No extra navigation. The sheet appears in place and dismisses with a tap.
Volume (ml)
Enter the number of milliliters actually delivered. If the bag ran slow and your cat stood up before you finished, enter the real volume, not the planned one. Edit any past session if you remember differently later.
Injection site
Tap one of three choices: left shoulder, right shoulder, or mid-back between the shoulder blades and the hips. Remewdy remembers the previous site so you can see at a glance whether you are due to rotate.
Session duration
Enter how many minutes the session took. Most home sessions run 5 to 15 minutes depending on needle gauge, bag height, and how still your cat stayed. A duration that drifts upward over weeks is useful information to share with your vet.
Time of day and date are captured automatically. You can add a short note if your cat reacted, if you had to stop early, or if the bag was a new lot.
What Your Vet Needs to See
The first 60 seconds of a CKD recheck are almost always spent reconstructing what happened since the last visit. Remewdy turns that reconstruction into a document.
- PDF care summary. A Premium feature that prints one document with every fluid session, volume, site, duration, plus medications, weight trend, and your free-text notes. Email it to your vet the night before, or open it on your phone in the exam room.
- Editable at any time. If you logged the wrong volume or the wrong site, tap the session and fix it. The log is for you, not against you.
- Works offline. Your records live on your iPhone. You do not need cell service at the clinic. You do not need Wi-Fi at home to log a session at 11 pm.
- CSV and JSON export on every tier. Free users can export the raw fluid log and hand it to any vet, any spreadsheet, any future app. Your data is yours.
Start Tracking Tonight, Free
Remewdy is free for one cat with full subcutaneous fluid tracking, medication reminders, weight logging, and data export. No account. No cloud. Your cat's records stay on your iPhone.
Download Remewdy FreeFrequently Asked Questions
Fluid volume is set by your veterinarian based on your cat's body weight, stage of CKD (IRIS stage 2 through 4), hydration status, and whether your cat also has heart disease. Common starting orders are 100 to 150 ml per session, given every day or every other day, but only your vet should set the number. Remewdy does not prescribe volume. It records whatever volume you enter so you can see adherence and show your vet the exact pattern at follow-up.
The three sites most home-care owners use are the left shoulder, the right shoulder, and the mid-back between the shoulder blades and the hips. Rotating across all three reduces scarring and site fatigue. Research on 468 CKD cat owners found that 81 percent default to the shoulder blades only, which can damage tissue over time (Cooley et al., JFMS, 2018). Remewdy lets you tap the site used for each session so the rotation is visible at a glance.
Yes. All medication, fluid, and care data is stored locally on your iPhone. You can open the app, log a fluid session, edit a dose, and read the full history with no internet connection. Reminders continue to fire. Sitter sharing and family sync use the network when you choose to enable them, but the core tracker keeps working offline.
Yes. Premium includes a PDF care summary that compiles every logged fluid session, volume, site, duration, plus medications, weight trend, and vet notes. You can email or print it before a vet visit, or open it on your phone in an exam room. Free users can export all data as CSV or JSON at any time.
Yes. The free tier covers one pet with full subcutaneous fluid tracking, medication reminders, weight logging, and CSV or JSON export. Premium adds unlimited pets, the PDF care summary, family sync, and sitter sharing. Premium is $5.99 per month with a free trial, $39.99 per year, or $99.99 one-time Lifetime.
Three fields per session: volume in milliliters, injection site (left shoulder, right shoulder, or mid-back), and session duration in minutes. Time of day and date are captured automatically. You can add a free-text note if your cat reacted to the session or if the bag ran slow.
No. Remewdy is a record-keeping and reminder tool. It does not prescribe fluid volume, diagnose CKD stage, or make treatment changes. Always follow your veterinarian's instructions. Remewdy helps you execute those instructions reliably and report outcomes accurately at follow-up visits.