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Geisinger Medical Laboratories Test Catalog
URIC ACID, RASBURICASE USER |
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Geisinger Epic Procedure Code: LAB3218
Geisinger Epic ID: 41921
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SPECIMEN COLLECTION |
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Specimen type: |
Plasma | |
Preferred collection container: |
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Specimen required: |
2 mL of plasma; minimum 0.2 mL. | |
Special notes: |
Place tube directly into an ice slurry. See processing instructions below. | |
Patient preparation: |
None. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge (cold, if possible) to separate plasma immediately. Place centrifuged specimen on ice and assay immediately. For off-campus labs or non-testing performing sites: Centrifuge, remove plasma, and freeze plasma immediately. Testing sites must perform testing as soon as frozen plasma is thawed. Thoroughly mix thawed plasma prior to testing. |
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Transport temperature: |
Frozen. | |
Specimen stability: |
Refrigerated: 7 days. Frozen: 6 months. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
Female: 2.4-5.7 mg/dL; Male: 3.4-7.0 mg/dL | |
CPT code(s): |
84550 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Uric acid. | |
Methodology: |
Spectrophotometric (Colorimetric) |
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Synonyms: |
URICTX
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Clinical significance: |
In patient who has tumor lysis syndrome, rasburicase may be used to manage the elevation of uric acid. Keeping the specimen cold will prevent breakdown of uric acid by rasburicase ex vivo. This allows for more accurate measurement of the uric acid level in vivo. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 10/16/2023 | |
Performing Locations
Geisinger Wyoming Valley Medical Center