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Uric acid measurement units vary between countries, with mmol/L commonly used in many parts of the world and mg/dL frequently used in the United States. This calculator provides accurate conversion between these units for clinical and laboratory use.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor accounts for the molecular weight difference and the volume conversion between liters and deciliters.
Details: Uric acid measurement is crucial for diagnosing and monitoring conditions like gout, kidney stones, and certain metabolic disorders. Accurate unit conversion ensures proper interpretation of results across different laboratory systems and international guidelines.
Tips: Enter the uric acid value in mmol/L. The value must be a positive number. The calculator will automatically provide the equivalent value in mg/dL.
Q1: Why is the conversion factor 16.81?
A: The conversion factor is derived from the molecular weight of uric acid (168.1 g/mol) and accounts for the unit conversion between mmol/L and mg/dL (1 mmol/L = molecular weight/10 mg/dL).
Q2: What are normal uric acid levels?
A: Normal ranges vary by laboratory but are typically 3.4-7.2 mg/dL (200-430 μmol/L) for men and 2.4-6.0 mg/dL (140-360 μmol/L) for women.
Q3: When is uric acid testing typically ordered?
A: Uric acid testing is commonly ordered when evaluating joint pain (suspected gout), kidney stones, monitoring chemotherapy patients, or assessing certain metabolic conditions.
Q4: Are there any special preparation requirements for uric acid testing?
A: Fasting is not typically required, but some medications and recent alcohol consumption can affect results. Follow your healthcare provider's specific instructions.
Q5: Can high uric acid levels be dangerous?
A: Persistently high uric acid levels (hyperuricemia) can lead to gout, kidney stones, and may be associated with other health conditions like hypertension and metabolic syndrome.