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22944 Uric Acid

Uric Acid
Test Code: URIC
Synonyms/Keywords
Uric Acid - Blood​
Useful For
Uric acid measurements are used in the diagnosis and treatment of numerous renal and metabolic disorders, including renal failure, gout, leukemia, psoriasis, starvation or other wasting conditions, and of patients receiving cytotoxic drugs.​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma​/SerumLithium-heparin Plasma Separator (PST)​, Serum Separator Tube (SST)Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT)1.0 mL​0.5 mL​ ​
Collection Processing Instructions
Samples collected in RTT or GTT must be removed from the cells within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
 
Samples from chemotherapy patients receiving the uric acid lowering drug Rasburicase (Elitek) require special handling to avoid falsely low results.  Use prechilled Light Green PST tube, and hand-carry to lab in ice-water bath.  Centrifuge, remove plasma, and assay immediately.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma/Serum​ ​ ​ Ambient​ 5 days​
Refrigerate​ 7 days​
Frozen​ 1  month​
Rejection Criteria
Samples collected with potassium oxalate/sodium fluoride
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Uricase Endpoint Assay/Beckman AU​
​Merrill ​Monday through Saturday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
Neillsville​​Monday through Sunday​​Less than 2 hours​​Modified Uricase Method/Siemens Dimension
​Stevens Point ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Wausau ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
Test Information
N-acetyl-p-benzoquinone imine (metabolite of Acetaminophen) will generate erroneously low results in samples for patients that have taken toxic doses of acetaminophen.
Reference Range Information
Performing Location Reference Range
All Performing Sites
using Dimension
              0-12 mos:  1.4-6.2 mg/dL
    13 mos - 11 yrs:  2.0-5.2 mg/dL
Female: 12-19 yrs:  3.0-5.8 mg/dL
Female: >= 20 yrs:  2.3-6.4 mg/dL
    Male: 12-13 yrs:  2.7-6.8 mg/dL
    Male: >= 14 yrs:  3.4-7.5 mg/dL​
​Marshfield
​ Both:         
          0- 14 days:   3.0 – 13.5 mg/dL
   15 days - <1 yr:     1.7 – 6.8 mg/dL
         1 - <12 yrs:     1.9 – 5.2 mg/dL
Male:           
        12 - <19 yrs:     2.8 – 8.1 mg/dL
            >=19 yrs:      3.7 – 8.2 mg/dL
Female:      
       12 - <19 yrs:      2.8 – 6.3 mg/dL
            >=19 yrs:      2.5 – 7.0 mg/dL
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84550   ​ ​ ​ ​ ​
Synonyms/Keywords
Uric Acid - Blood​
Ordering Applications
Ordering Application Description
​Centricity ​Uric Acid, Blood
​Cerner ​Uric Acid
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma​/SerumLithium-heparin Plasma Separator (PST)​, Serum Separator Tube (SST)Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT)1.0 mL​0.5 mL​ ​
Collection Processing
Samples collected in RTT or GTT must be removed from the cells within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
 
Samples from chemotherapy patients receiving the uric acid lowering drug Rasburicase (Elitek) require special handling to avoid falsely low results.  Use prechilled Light Green PST tube, and hand-carry to lab in ice-water bath.  Centrifuge, remove plasma, and assay immediately.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma/Serum​ ​ ​ Ambient​ 5 days​
Refrigerate​ 7 days​
Frozen​ 1  month​
Rejection Criteria
Samples collected with potassium oxalate/sodium fluoride
Useful For
Uric acid measurements are used in the diagnosis and treatment of numerous renal and metabolic disorders, including renal failure, gout, leukemia, psoriasis, starvation or other wasting conditions, and of patients receiving cytotoxic drugs.​
Reference Range Information
Performing Location Reference Range
All Performing Sites
using Dimension
              0-12 mos:  1.4-6.2 mg/dL
    13 mos - 11 yrs:  2.0-5.2 mg/dL
Female: 12-19 yrs:  3.0-5.8 mg/dL
Female: >= 20 yrs:  2.3-6.4 mg/dL
    Male: 12-13 yrs:  2.7-6.8 mg/dL
    Male: >= 14 yrs:  3.4-7.5 mg/dL​
​Marshfield
​ Both:         
          0- 14 days:   3.0 – 13.5 mg/dL
   15 days - <1 yr:     1.7 – 6.8 mg/dL
         1 - <12 yrs:     1.9 – 5.2 mg/dL
Male:           
        12 - <19 yrs:     2.8 – 8.1 mg/dL
            >=19 yrs:      3.7 – 8.2 mg/dL
Female:      
       12 - <19 yrs:      2.8 – 6.3 mg/dL
            >=19 yrs:      2.5 – 7.0 mg/dL
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Chippewa Falls ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Uricase Endpoint Assay/Beckman AU​
​Merrill ​Monday through Saturday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
Neillsville​​Monday through Sunday​​Less than 2 hours​​Modified Uricase Method/Siemens Dimension
​Stevens Point ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Wausau ​Monday through Sunday​ ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
​Wisconsin Rapids ​Monday through Friday ​Less than 2 hours​ ​Modified Uricase Method/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84550   ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.