Do blood tests for uric acid require fasting?

Answer 1

You should not eat or drink at all for 4 hours before the test unless told otherwise. Your doctor may also be necesary to stop taking any drugs that may affect the test results. NEVER stop taking any medicine unless you have the approval of your your doctor.

Drugs that can increase the level of uric acid in your body include:

Alcohol

Ascorbic acid

Aspirin

Caffeine

Cisplatin

Diazoxide

Diuretics

Epinephrine

Ethambutol

Levodopa

Methyldopa

Nicotinic acid

Phenothiazines

Theophylline

Drugs that can decrease the level of uric acid in your body include:

Allopurinol

Azathioprine

Clofibrate

Corticosteroids

Estrogen

Glucose

Guaifenesin

Mannitol

Probenecid

Warfarin

Answer 2

For the blood sample, the patient should be fasting (nothing to eat or drink) for at least eight hours before the test.

The urine test for uric acid requires a 24-hour urine collection. The urine test does not require the patient to fast or cut down on fluids. Some laboratories encourage patients to drink plenty of fluids during the collection period.

Answer 3

No