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Geisinger Medical Laboratories Test Catalog
PRE DIALYSIS BUN |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB3471 Geisinger Epic ID: 17574 | |
SPECIMEN COLLECTION |
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Specimen type: |
Plasma or | |
Preferred collection container: |
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Specimen required: |
2 mL of plasma or serum; minimum 0.2 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (preferred). Room temperature or frozen specimen also acceptable. | |
Specimen stability: |
Room temperature: 7 days. Refrigerated: 7 days. Frozen: 1 year. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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CPT code(s): |
84520 | |
| 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: |
Predialysis blood urea nitrogen (BUN). | |
Methodology: |
Spectrophotometric (Colorimetric) Kinetic UV |
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Synonyms: |
BUNPRE
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Clinical significance: |
Predialysis BUN is utilized along with postdialysis BUN to evaluate dialysis efficiency. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |