If you came here asking “is my siding rotting or just the paint”, “can I just recoat over failing stain”, “how much to replace cedar siding” — you are in the right place. Start with the next box, then keep reading.
None of those? Then nothing below is an emergency, and you can read the rest calmly.
The wall that looked fine right up until somebody leaned a ladder on it.
A result that looks steady may not be.
A steady Surface Gloss reading here is not the reassurance it looks like. It has barely moved — but Fibre Integrity is down 28% over the same stretch, and the film can only hold its shine while the wood under it is sound.
Worth asking: “Would Adhesion Pull Test tell us something different? It does not depend on Fibre Integrity.”
Muscle makes creatinine. The kidney clears it. Lose muscle and you make less of it. Lose kidney and you clear less of it. The number sits still while both are going wrong.
The kidney estimate assumes your muscle is average for your age and sex. When it isn't, the estimate carries that error forward. The fix is a marker your muscles don't make. Cystatin C is the usual one. The same trap turns up wherever a marker's source is fading. Albumin drops when someone stops eating well, not only when the kidney leaks. CK drops as muscle disappears, not only when injury stops. Urea depends on how much protein went in.
Before you read any trend, ask what makes this substance and whether that thing is changing too. If it is, a flat line means nothing and you need a second marker with a different source.
Baxmann AC et al. Influence of muscle mass and physical activity on serum and
urinary creatinine and serum cystatin C. Clin J Am Soc Nephrol. 2008.
Shlipak MG et al. Cystatin C versus creatinine in determining risk based on
kidney function. N Engl J Med. 2013.
The moisture reading that changed when you changed meters.
Some of your results may not be comparable with each other.
Moisture % came back 14 from handheld meter on 2026-04-02, and 21 from lab oven-dry on 2026-04-03 — 50% apart, days apart.
Worth asking: “Are these comparable, or should I treat them as separate records?”
Two labs can run the same test on the same blood and get different answers. They use different machines, calibrated differently, with their own idea of normal. Nobody reconciles them, because no single lab ever sees the other one's numbers.
Each lab is internally consistent, so each one looks trustworthy on its own. The error only appears when you line them up, and lining them up is something only the patient is in a position to do. Watch for two shapes. A step in the level exactly where care moved. And two results days apart from different labs that disagree by more than the body could possibly move in that time.
A series is only a series if the same ruler measured all of it. Where the ruler changes, treat the step as an artefact until something proves otherwise.
Standardisation of body composition parameters between GE Lunar iDXA and
Hologic Horizon A and their clinical impact. 2024.
Direct observation: in one longitudinal record, AST averaged 38.7 at one
hospital and 19.8 at another over overlapping years, same patient.
It passed every spring inspection for four years, and then the boards let go all at once.
Every one of these was normal, and every one of them was moving.
Every one of your Surface Gloss results came back inside the normal range (35–60) — 4 of them. Over that stretch the number went from 42 to 40.
Which direction is the worrying one for this test has not been settled here, so this is movement, not bad news.
Worth asking: “Could we look at these in date order rather than one at a time?”
A normal range is built from a crowd. It says whether you look like other people. It cannot say whether you are moving, or how fast, or which way. Someone whose usual number is at the low end can lose a third of their function and still land inside the range every single time.
Almost every alert in medicine fires on a threshold. Cross the line, something happens. Stay inside it and nothing does. So a person sliding steadily downhill inside the range triggers nothing, year after year, and each visit ends with good news that was true and useless. The direction and the speed carry the information. The position carries almost none.
Ask of any result: compared with this person's own past, which way and how fast? A number is a dot. Two dots are a difference. Only many dots are a direction.
KDIGO defines chronic kidney disease by abnormality persisting over three
months — the criterion is duration, not a single value.
Roughly nine in ten adults with chronic kidney disease do not know they have it.
When to worry
What you can do yourself
What your results mean
The things that are awkward to ask
Print this, or post it to your portal the night before. It is not a diagnosis and it does not ask anyone to accept anything.
What I noticed
the paint looks chalky
What I would like to ask
This may not belong to one person
Water that cannot escape rots the fibre, and rotted fibre holds more water. The painter, the carpenter and whoever built the drainage all own a piece of this.
Could matter to: coatings, carpentry, drainage, ventilation
This page does not diagnose anything and does not replace your doctor. It reads your own records back to you and suggests questions. Nothing you type here leaves your device.