Every lab result said “normal”. Together they told a different story.
Four blood tests, four labs, four reports flagged normal. Only when the numbers sat side by side did the line show where it was heading.
Daniel is 54. Over four years he had routine blood work at four different places: his old GP, a lab near his office, a hospital during a short stay, and his new GP. Each report came back with the same reassuring word next to kidney function: normal.
His eGFR, a common estimate of kidney function, was 92 in 2022, 81 in 2023, 70 in 2024 and 63 in 2025. Every one of those labs printed a range of “60 and above”, so every single result was within range, and nobody flagged it. No doctor had more than one or two of the reports in front of them at the same time.
This isn’t a story about a missed diagnosis, and a falling number isn’t automatically a problem. It’s about something simpler: a trend can only be seen when the results are next to each other. Deciding what it means is a conversation with your doctor. Making sure that conversation can happen is something you can do yourself.
Why a trend hides between reports
- Each report stands alone. A lab report compares your result with the range. It doesn’t compare it with your last result from a different lab.
- Different labs, different ranges and units. One lab’s range may differ from another’s, and the same test can be printed in different units, which makes numbers look unrelated.
- Different doctors see different pieces. A specialist sees this year’s panel; your GP sees last year’s. Nobody sees all four.
- “Normal” is read as “nothing to look at”. When everything is inside the range, nobody has a reason to dig out the old reports.
How to see your own trends
1. Gather the same tests from every source
Collect the reports from every lab, clinic and hospital you’ve used for the past few years, not just the last one. Portals often keep only recent results, so download PDFs while you can, and ask the records office for older ones.
2. Put the same test in one row, in date order
Write each result next to the previous ones: date, value, unit, the lab’s range and the lab’s name.
| Date | Lab | eGFR | Lab range | Flag |
|---|---|---|---|---|
| Mar 2022 | Lab A | 92 mL/min | 60 and above | Normal |
| May 2023 | Lab B | 81 mL/min | 60 and above | Normal |
| Jun 2024 | Lab C | 70 mL/min | 60 and above | Normal |
| Jun 2025 | Lab D | 63 mL/min | 60 and above | Normal |
3. Check the unit before comparing
If one lab reports a test in a different unit, convert it first, and keep the original value written next to it. Comparing 84 with 0.95 makes no sense until you see they are the same creatinine result in µmol/L and mg/dL.
4. Look at the direction, not just the flag
Ask yourself one plain question for each test you track: is it roughly flat, going up, or going down? You only need to notice it, and bring it to your doctor.
5. Bring the line, not the pile
A single page with your results in date order is easier for a doctor to read in a short appointment than a folder of reports. Ask: “These have all been in range, but they’ve moved every year. Is that something we should look at?”
How Backstory does this for you
Backstory was built for exactly this moment. You photograph or upload your reports from any lab. Backstory reads every test, value, date and range, matches the units, and puts each test on one line over the years, with every result shown against the range of the lab that produced it. Tap any point to see the original report.
For Daniel, that would have meant one chart instead of four separate PDFs, and a one-page summary to bring to his GP. Backstory doesn’t tell you what a trend means. It makes sure you and your doctor can see it.
Keep reading
- How to keep an aging parent’s medical records in one place
- Your records are in five patient portals. Here’s how to get them in one place.
- Backstory Health FAQ: how the app works, privacy and pricing
This article is about organizing records, and the people in it are fictional examples. It isn’t medical advice. Talk to your doctor or clinic about your results and treatment.