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Specimen Collection Manual and Test Catalog

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POST-DIALYSIS BUN BATTERY

Geisinger Epic Procedure Code:  LAB3470    Geisinger Epic ID:  17573

SPECIMEN COLLECTION
Specimen type: 

Plasma or serum


Preferred collection container: 
Specimen required: 

2 mL of plasma or serum; minimum 0.2 mL.



SPECIMEN PROCESSING
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
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: 

Postdialysis BUN, K+V, dialysis session length, urea reduction ratio, ultrafiltration volume, predialysis weight, postdialysis weight, NPNA


Methodology: 
Kinetic UV
Spectrophotometric (Colorimetric)
Synonyms: 

POSTDIALYSIS BUN BATTERY, BUNPOB


Clinical significance: 

This panel of tests and calculated results is used to assess the efficiency of renal dialysis.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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