A lab result indicates a level of’uric acid higher than expected, or have you heard the term «gout»? This waste product, produced naturally by the body, circulates in the blood before being eliminated by the kidneys. When it builds up, the condition is called hyperuricemia, which can be linked to gout or kidney stones. This guide explains, in plain language, what this test measures, what factors can affect the results, and why interpreting the results should always be left to a healthcare professional.
On this page
- What Is Uric Acid?
- Hyperuricemia and Its Causes
- Benchmarks and Reference Points
- The link to gout
- The connection to kidney stones
- Diet and Foods High in Purines
- When measuring uric acid levels
- Interpreting an Outlier
- Myths and misconceptions
- Frequently asked questions
- Sources
What Is Uric Acid?
The’uric acid is a waste product produced when the body breaks down substances called purines. Purines come partly from our own cells and partly from certain foods. Once formed, uric acid enters the bloodstream, and the kidneys then eliminate most of it in the urine.
Why do we measure it?
The blood uric acid level reflects the balance between what the body produces and what the kidneys excrete. When this balance is disrupted, the level rises—a condition known as hyperuricemia. This test helps diagnose certain types of joint pain and recurrent kidney stones, or monitor a pre-existing condition.
- It may be part of a more comprehensive blood test.
- It helps in evaluating a joint crisis suggestive of gout.
- It is sometimes used to help understand recurrent kidney stones.
- It allows for monitoring the progression of existing hyperuricemia.
Hyperuricemia and Its Causes
The’hyperuricemia refers to a uric acid level higher than the normal range. It can result from excessive production, reduced renal excretion, or a combination of both. Several factors often contribute, and many people with high levels have no symptoms.
The Main Causes
- Diet: Certain foods high in purines and sugary drinks can contribute to the increase.
- Alcohol, particularly beer, which promotes production and slows elimination.
- Certain medications, such as diuretics, which can reduce renal excretion.
- Genetics and family history, which influence how the body processes uric acid.
- Reduced kidney function, which limits the elimination of waste.
- Overweight, diabetes, and high blood pressure, which are often associated with hyperuricemia.
None of these factors, taken on its own, is sufficient to draw a conclusion. It is the overall picture—assessed in consultation with a healthcare professional—that gives meaning to a high score.
To remember
- Uric acid is a waste product resulting from the breakdown of purines.
- The kidneys eliminate most of it through urine.
- A high level is called hyperuricemia and does not always cause symptoms.
- Diet, alcohol, medications, and genetics can all play a role.
- A high level may be associated with gout or kidney stones.
- Only a healthcare professional can interpret the results based on your specific situation.
Benchmarks and Reference Points
In Quebec, uric acid is measured in micromoles per liter (µmol/L). The landmarks The information below is provided for general reference only: exact reference ranges vary by laboratory, age, and sex, and only a healthcare professional can interpret a result in the context of your specific situation.
| Group | General Reference Range (µmol/L) |
|---|---|
| Adult woman | About 150 to 350 |
| Adult male | Approximately 200 to 420 |
| Area to Watch | Above the laboratory range |
How to Read These Fields
- Rate within the range: generally considered normal; should be evaluated in your specific context.
- Moderately elevated level: may warrant follow-up, especially if symptoms or risk factors are present.
- Significantly high rate: requires an assessment by a professional who takes the full picture into account.
A single number doesn't tell the whole story. A high level without symptoms doesn't automatically mean you have a disease, and a gout attack can occur even when the level appears «normal» at the time.
Are you concerned about a high uric acid level, or are you experiencing sudden joint pain? Make an appointment Online—talk to a professional right away via online consultation without leaving your home, or learn more about our business services in good health.
The link to gout
Visit drop is a form of arthritis related to uric acid. When uric acid builds up, it can form tiny crystals that deposit in a joint and trigger sudden, painful inflammation. The big toe joint is often affected, but other joints can be affected as well.
How Does a Crisis Manifest Itself?
- Intense pain that often occurs at night or in the early morning.
- A joint that is red, warm, swollen, and very tender to the touch.
- These episodes may recur if hyperuricemia persists.
What You Need to Know
High uric acid levels increase the risk of gout, but are not sufficient to establish a diagnosis: many people have high levels without ever experiencing an attack. Conversely, levels may appear normal during an attack. Diagnosis and treatment should be handled by a healthcare professional, never based on self-diagnosis. Do not start or change any treatment on your own.
The connection to kidney stones
Uric acid may also play a role in certain kidney stones. When present in large quantities in the urine, it can crystallize and form stones, a process that is exacerbated by urine that is too concentrated or too acidic. Not all stones are related to uric acid, but it is one possible type.
| Element | What it offers |
|---|---|
| Blood Uric Acid | The level of the waste product in the blood |
| Urinalysis | The presence of crystals or highly concentrated urine |
| Hydration | This is a key factor, because diluted urine limits crystallization |
| Analysis of a Calculation | Its composition, which guides prevention efforts |
Staying well-hydrated every day is often one of the general measures recommended to reduce the risk of recurrence, but the complete treatment plan should be determined with a healthcare professional based on the composition of the stone.
Diet and Foods High in Purines
Some foods contain more than purines, substances whose breakdown produces uric acid. Diet is just one factor among many, and most uric acid comes from the body itself. So it’s not a matter of cutting everything out, but of knowing the main categories.
| Category | Common Examples |
|---|---|
| Higher in purines | Offal, game, certain types of seafood, and fatty fish |
| Drinks to Watch Out For | Beer and other alcoholic beverages, sugary drinks, and sweetened juices |
| Generally more moderate | Vegetables, low-fat dairy products, eggs, water |
General guidelines, not a rule
- Staying well-hydrated supports kidney function.
- Limiting alcohol consumption—especially beer—is often cited as a general measure.
- Cutting back on sugary drinks can be one of the helpful habits.
- No diet should be started based on a single result alone, without professional advice.
For personalized advice, a registered dietitian-nutritionist can help you. Needs vary from person to person, and a customized plan is better than a list of restrictions.
When measuring uric acid levels
Visit uric acid test is not routinely included in all checkups. A healthcare professional orders it in specific situations, often combining it with other tests to get a more complete picture.
Common Situations
- In cases of sudden joint pain suggestive of a gout attack.
- If you have kidney stones, especially if they recur.
- To monitor hyperuricemia or a previously diagnosed case of gout.
- As part of a broader assessment, at the professional's discretion.
Preparation
Depending on the circumstances, fasting may be required—particularly if the test is part of a panel that requires it. Follow the instructions on your lab order form. For general guidelines on fasting before a blood test, see our dedicated article.
Interpreting an Outlier
Seeing a uric acid level outside the normal range can be cause for concern, but a single result is not enough to draw a conclusion. The interpretation takes into account your medical history, your symptoms, your medications, your recent diet, and sometimes a second test result.
- A high level without symptoms does not automatically mean you have a disease.
- A gout attack can occur even when uric acid levels appear to be normal.
- A very heavy meal or recent alcohol consumption may affect the result.
- You should never change your treatment or diet based on a single number.
The results are sent to the healthcare professional who ordered the test. It is the healthcare professional—not the laboratory—who interprets the results and explains the next steps to you. Do not draw your own conclusions based on a single result; that is the role of a healthcare professional.
Myths and misconceptions
«High uric acid levels necessarily mean that I have gout.»
False. Many people have high uric acid levels without ever experiencing a gout attack. Uric acid levels are a risk factor, not a diagnosis. Only a healthcare professional can make a diagnosis, taking into account symptoms and medical history.
«If my levels are normal, I can't have a gout attack.»
False. Uric acid levels may appear normal at the exact moment a flare-up occurs. This is one of the reasons why a diagnosis is never based on a single number.
«All you have to do is stop eating red meat to solve the problem.»
Nuanced. Diet plays a role, but most uric acid comes from the body itself. Lifestyle habits matter, but they aren’t the only factor. A plan should be developed with a professional.
«Gout is a disease of the past.»
False. Gout remains common today. It affects people from all walks of life, and its management should be discussed with a healthcare professional.
«Drinking a lot of water right before the test lowers my uric acid level.»
Nuanced. Staying well-hydrated on a regular basis is helpful, but drinking large amounts of fluid right before a test in the hope of altering the result is pointless and may skew the results. Follow the instructions provided with your test request.
Frequently asked questions
What exactly does a uric acid test measure?
Uric acid is a waste product resulting from the breakdown of purines, which is primarily excreted by the kidneys. Its level in the blood reflects the balance between production and excretion. A healthcare professional will interpret this based on your specific situation.
Does a high level mean I have gout?
No. A high level increases the risk of gout, but many people never experience an attack. The diagnosis is based on symptoms and an evaluation by a healthcare professional, not on a single number.
Do you need to be fasting to have your uric acid levels tested?
It depends on the context. The test itself does not always require fasting, but it is often part of a panel of tests, which may require fasting. Follow the instructions on your lab order form.
Which foods affect uric acid levels?
Foods high in purines, such as organ meats and certain types of seafood, as well as alcohol and sugary drinks, can contribute to an increase in uric acid levels. Diet is just one factor among many, and a plan should be developed with a healthcare professional.
What should I do if my result is out of the normal range?
Don't jump to conclusions on your own. A single result should be interpreted with caution and is often confirmed by a follow-up test. Discuss it with the healthcare professional who ordered the test; they will decide on the next steps based on your specific situation.
Where can I get my uric acid levels checked?
Testing is available at our network of service locations in Quebec. You can schedule your visit through our appointment page or explore our entire selection of services.
Sources
- Arthritis Society (Canada) — arthritis.ca
- National Institute for Excellence in Health and Social Services (INESSS) — inesss.qc.ca
- Professional Order of Dietitians and Nutritionists of Quebec — opdq.org
- Quebec Ministry of Health and Social Services (MSSS) — msss.gouv.qc.ca
- Québec.ca Portal — Health Issues from A to Z — quebec.ca
- Canadian Kidney Foundation — rein.ca
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