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Uric Acid

Ordering Info & Methodology

Test Code

Cerner Synonyms

URCA

Uric Acid, Plasma, Uric Acid

Turn Around Time

Methodology

Analyzed within 4 hours of receipt, 24/7.

Uricase, colorimetric, Roche cobas c

Ordering Guide

Specimen Requirements

Sample Type

Collection Container

Alternate Collection Containers

Lithium Heparin Plasma

Light Green

Gold, Red

0.5 mL

Seven days

Add on stability
This is the length of time after sample collection that this analyte is stable. Test can be added to a previously collected sample if the time since collection is less than the add on stability time.

Minimum Volume

Add On Stability

Collection and Shipping Requirements

Refrigerate. Send on ice pack.

Reference Intervals

Female Reference Interval

Age Category
Reference Interval
units
0 y - <12 m
115-470
umol/L
12 m - <4 y
105-300
umol/L
4 y - <7 y
130-280
umol/L
7 y - <10 y
120-295
umol/L
10 y - <12 y
180-280
umol/L
12 y - <16 y
180-345
umol/L
16 y - <20 y
180-350
umol/L
≥ 20 y
125-350
umol/L

Male Reference Interval

Age Category
Reference Interval
units
0 y - <12 m
115-470
umol/L
12 m - <4 y
105-300
umol/L
4 y - <7 y
130-280
umol/L
7 y - <10 y
120-295
umol/L
10 y - <12 y
135-320
umol/L
12 y - <14 y
160-400
umol/L
14 y - <16 y
140-465
umol/L
16 y - <20 y
235-510
umol/L
≥ 20 y
175-450
umol/L
Additional Notes

Measurement Uncertainty (MU)
Every laboratory value is an estimate of the true concentration of substance. MU is the 95% confidence interval around that estimate. 95% of the time, the true concentration will be within the range of the reported value ±MU. This value is based on analytical variability (precision) and does not reflect other factors such as sample collection and handling which may also affect the result.

Example

Reported sodium = 140 mmol/L
Sodium MU = 1%
Expanded uncertainty = 140 mmol/L ± 1% or 140mmol/L ± 1.4 mmol/L
Interpretation - the true value of sodium in the sample is in the range 138.6-141.4 mmol/L, with 95% confidence.

2%

Measurement Uncertainty

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