Abnormal uric acid levels can have various causes, ranging in severity from 'worrying' to 'critical'. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose abnormal uric acid levels, we could:
|Syndrome X||5%||Ruled out|
Uric acid (plasma). Unit: mg/dL [umol/L]
Possible responses:→ Don't know
→ Under 3.5 
→ 3.5 to 4.5 [210-270]
→ 4.6 to 7.0 [280-420] (normal)
→ Over 7.0 
Elevated levels of serum uric acid increase the risk of heart attack.
In evaluating 5,926 subjects who were between 25 and 74 years of age, after 16.4 years of follow-up, there were 1,593 deaths of which 45.9% were attributed to cardiovascular disease. It was found that increased serum uric acid levels were independently and significantly associated with the risk of cardiovascular mortality. [JAMA, May 10, 2000;283(18): pp.2404-2410]
Xanthine oxidase, the enzyme that immediately produces uric acid, uses molybdenum as a cofactor. Molybdenum is known to raise uric acid levels, which is why people with gout (a condition of elevated high uric acid levels) are told to avoid molybdenum supplements.