What this test measures
Uric acid is the end-product of purine metabolism (purines come from cell turnover and dietary sources — red meat, organ meats, seafood, beer). Kidneys excrete about two-thirds of the daily load; the rest goes through the gut. When production exceeds excretion, urate crystals form in joints (gout) and renal tubules (uric acid stones).
Why it matters
Hyperuricaemia is increasingly common in India — driven by obesity, alcohol (especially beer), high-purine diets, metabolic syndrome and reduced renal clearance with CKD. Persistent serum uric acid > 6.8 mg/dL exceeds the solubility limit and risks acute gout (sudden severe joint inflammation, classically big toe), tophi (chronic urate deposits in joints and skin), and uric acid kidney stones. Hyperuricaemia is also independently associated with hypertension, cardiovascular disease and CKD progression.
How to prepare
Fast for 4–6 hours for the most consistent reading. Avoid red meat, organ meats, seafood and alcohol for 24 hours before the test — all transiently raise uric acid. Continue medications unless your doctor advises otherwise; mention any diuretics (thiazides, furosemide), low-dose aspirin or niacin, which raise uric acid.
Markers & reference ranges
Reference ranges below are typical adult values. Your lab's reported range may differ slightly based on the assay platform and patient demographics — always read your report against the range printed on it.
| Marker | Normal range | If low | If high |
|---|---|---|---|
| Serum Uric Acid (mg/dL)[1][2] | Men 3.5 – 7.2 · Women 2.6 – 6.0 | Low uric acid is uncommon. Causes: Fanconi syndrome, SIADH, allopurinol or febuxostat therapy, severe liver disease. Rarely clinically meaningful in isolation. | Hyperuricaemia. Causes: high-purine diet, alcohol, obesity, metabolic syndrome, CKD, diuretics, psoriasis, tumor lysis. Sustained values > 6.8 mg/dL exceed urate solubility — risk of gout, tophi, kidney stones. Target uric acid in established gout: < 6 mg/dL (<5 if tophi). |
Uric acid bands and risk
| Uric acid (mg/dL) | Status | Implication |
|---|---|---|
| < 3.5 (M) / < 2.6 (F) | Low | Usually not clinically meaningful; check medication / diet |
| 3.5 – 7.2 (M) / 2.6 – 6.0 (F) | Normal | No urate-related risk |
| 7.2 – 8.9 (M) / 6.0 – 7.9 (F) | Mildly raised | Asymptomatic hyperuricaemia; lifestyle review |
| 9.0 – 10.0 | Moderately raised | Higher risk of gout; lifestyle change ± drug therapy |
| > 10.0 | Significantly raised | High risk of gout / tophi / stones; drug therapy usually needed |
Frequently asked questions
Do I need to fast for a uric acid test?
A 4–6 hour fast is preferred. Avoid red meat, organ meats, seafood and alcohol for 24 hours — all transiently raise uric acid.
My uric acid is 7.5 but I have no symptoms — should I treat it?
Asymptomatic mild hyperuricaemia is usually managed with lifestyle: lose weight, cut beer / spirits, reduce red and organ meats, increase water intake, treat any related conditions (hypertension, metabolic syndrome). Drug therapy is reserved for symptomatic gout, tophi, kidney stones, or very high levels (>10 mg/dL).
What foods raise uric acid the most?
High-purine foods: organ meats (liver, kidney, brain), red meat in large amounts, seafood (sardines, anchovies, mussels, scallops, shrimp), beer (uniquely problematic due to purines + alcohol), fructose-sweetened drinks, and yeast extracts.
Does alcohol raise uric acid?
Yes — particularly beer (high purine content + alcohol) and spirits. Wine in moderation is less problematic. Heavy drinkers often have raised uric acid even with otherwise low-purine diets.
Can stress trigger gout?
Acute stress, illness, surgery, or dehydration can precipitate a gout attack in someone with hyperuricaemia. Most attacks start at night and resolve in 5–7 days with NSAIDs or colchicine.
How does diuretic medication affect uric acid?
Thiazide and loop diuretics reduce uric acid excretion and can precipitate gout in susceptible people. If you have gout, discuss alternative blood-pressure medications (losartan and amlodipine are urate-friendly).
How often should I test uric acid?
Once at baseline if you have risk factors (obesity, metabolic syndrome, family history, diuretic use); 3–6 monthly while urate-lowering therapy is being titrated; annually once stable on therapy or in surveillance.
Related Kidney / Electrolytes tests
Tests commonly ordered alongside URIC ACID, or that help interpret an unexpected result.
Sources & references
- American College of Rheumatology — Gout 2020 Guideline · accessed 2026-05-29T00:00:00.000Z
- NIH MedlinePlus — Uric Acid Test · accessed 2026-05-29T00:00:00.000Z
- NCBI StatPearls — Hyperuricemia · accessed 2026-05-29T00:00:00.000Z
- EULAR — Gout Management 2016 · accessed 2026-05-29T00:00:00.000Z
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