Urine Uric Acid Test
In a urine uric acid test, an urine sample is taken from the patient and is analyzed for uric acid content. The urine uric acid test can be used to check if the kidneys can flush out uric acid from the system.
The standard uric acid level for a twenty-four hour urine sample is 250-750 mg (1.5-4.4 millimoles).
A uric acid test result higher than this range might show gout and possible risk of kidney stone formations. This can be as a result of diet rich in purines.
A uric acid test result lesser than this range might also indicate gout. The patient’s kidneys might be getting problems flushing out uric acid from his body, even with a regular uric acid production.
Blood Uric Acid Test
In a blood uric acid test, blood is extracted from a patient’s vein using a vacuum through a process called venipuncture. That is a more direct method of determine body’s uric acid level compared to the urine uric acid test. The blood uric acid test will be able to directly measure the level of uric acid in the blood of the patient.
The normal uric acid level in the blood is 3.6 - 8.3 mg/dL (~214 - ~494 µmol/L) for males and 2.3-6.6 mg/dL (137-393 µmol/L) for women.
A uric acid test result bigger than this range might show a case of Hyperuricemia. This generally signifies that the kidneys aren't able to flush out all the excess uric acid properly. This might imply high risk of uric acid crystal formation in the joints that might result in gouty inflammations.
A uric acid test result lower than this range is rarely a cause for problem, though often connected with kidney and liver dysfunctions. It is still better to confirm with your doctor if the low-level of uric acid in your system isn't a result of another ailment / condition.
Pointers to keep in mind before having your blood / urine tested:
1. Ensure that the urine sample you give to the technician is no older than twenty-four hours.
2. For correct results, avoid eating food from five to nine hours before the test. The food you eat can change your blood and urine’s chemistry and affect the test results.
3. Talk to with your doctor before taking the test as he might advice you to stop taking certain drugs that might affect the test results. Don't STOP TAKING ANY PRESCRIBED MEDICINE WITHOUT CONSULTING YOUR DOCTOR.