Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

URCU
8529
RUA
9308
Females
1 year: 2.1-4.9 mg/dL
2 years: 2.1-5.0 mg/dL
3 years: 2.2-5.1 mg/dL
4 years: 2.3-5.2 mg/dL
5 years: 2.3-5.3 mg/dL
6 years: 2.3-5.4 mg/dL
7-8 years: 2.3-5.5 mg/dL
9-10 years: 2.3-5.7 mg/dL
11 years: 2.3-5.8 mg/dL
12 years: 2.3-5.9 mg/dL
> or =13 years: 2.7-6.1 mg/dL
Reference values have not been established for patients that are less than 12 months of age.
Clinical References: Tietz Textbook of Clinical Chemistry. 4th edition, Edited by CA Burtis, ER
Ashwood, WS Bruns. W.B. Saunders Company, Philadelphia, 2006;24:803-807
Uric Acid, Urine
Clinical Information: Uric acid is the end-product of purine metabolism. It is freely filtered by the
glomeruli and most is reabsorbed by the tubules. There is also active tubular secretion. Increased levels
of uric acid in the urine usually accompany increased plasma uric acid levels unless there is a decreased
excretion of uric acid by the kidneys. Urine uric acid levels reflect the amount of dietary purines and
also endogenous nucleic acid breakdown.
Useful For: Assessment and management of patients with kidney stones, particularly uric acid stones
Interpretation: Urinary uric acid excretion is elevated in a significant proportion of patients with
uric acid stones. Uric acid excretion can be either decreased or increased in response to a variety of
pharmacologic agents. Urine uric acid levels are elevated in states of uric acid overproduction such as in
leukemia and polycythemia and after intake of food rich in nucleoproteins.
Reference Values:
Diet-dependent: