If you've had the same test done at two different labs, the reports can look surprisingly different even when your health hasn't changed at all. Looms helps you line them up so you can see the real trend rather than being thrown by formatting differences.
Why labs differ
Different laboratories use different equipment and methods, and they set their own reference ranges to match. That means the normal band printed on one report may not be identical to another's, and a value can even be reported in different units. None of this means one lab is wrong — it just means the numbers aren't always directly comparable at face value.
How Looms lines them up
When your results include the same test parameter over time, Lab Insights plots them on a single trend chart so you can see the direction your values are moving across visits and labs. Seeing the shape of the trend is often more useful than any single reading.
What to watch for
- Check the units — the same test can be reported on different scales
- Compare each value to that lab's own reference range, not another's
- Look at the trend and direction rather than tiny differences between labs
- Be cautious comparing results from methods that clearly differ
When in doubt, ask
If two results seem to disagree and you're not sure why, bring both to your doctor. They can tell whether the difference is meaningful or simply down to method. Keeping both reports in Looms means you always have them side by side for that conversation.