Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

UREA NITROGEN, PERITONEAL DIALYSATE

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB3211         Geisinger Epic ID: 14445

SPECIMEN COLLECTION
Specimen type:
Peritoneal dialysate
Preferred collection container:
Specimen required:
1 mL of peritoneal dialysate; minimum 0.5 mL.

SPECIMEN PROCESSING
Specimen processing instructions:
Centrifuge to remove any cellular material. 
Transport temperature:
Refrigerated (preferred). Room temperature or frozen specimen also acceptable.
Specimen stability:
Room temperature: 7 days. Refrigerated: 7 days. Frozen: 1 month.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
CPT code(s):
84540
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:
Urea nitrogen, peritoneal fluid.
Methodology:
Spectrophotometric (Colorimetric)
Synonyms:
UNFB
Clinical significance:
Refer to Body Fluid Testing for additional clinical interpretive information.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 12/24/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Mariana Moyer, Jared Shepherd
Frequency: Daily, Monday - Sunday
Performed stat? Yes
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