What it measures
Uric acid (urate) is a waste product made when the body breaks down purines, which come from the body's own cells and from some foods and drinks. The kidneys clear most of it. High levels can form crystals in the joints, which is what happens in gout.
Why people test it
- Checked when gout is suspected, for example with a sudden painful, swollen joint.
- Monitored in people with gout on a prescription that lowers urate.
- Part of kidney and general health panels.
Typical range
Ranges vary between labs, with the method used, age and sex, and your report shows the lab's own range. One NHS lab gives 200 to 430 µmol/L for men and 140 to 360 µmol/L for women, and notes these do not apply in pregnancy. Source: North Bristol NHS Trust, Severn Pathology: urate.
Finger-prick or vein?
A finger-prick sample is usually fine for uric acid. A vein draw works too and is used when it is part of a larger panel.