Home
HelpTest Code UEBF Urea Nitrogen, Body Fluid
Necessary Information
1. Date and time of collection are required.
2. Specimen source is required.
Specimen Required
Preferred Source:
-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)
-Pleural fluid (pleural, chest, thoracentesis)
-Drain fluid (drainage, Jackson Pratt [JP] drain)
-Peritoneal dialysate (dialysis fluid)
-Pericardial
Acceptable Source: Write in source name with source location (if appropriate)
Collection Container/Tube: Sterile container
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge to remove any cellular material and transfer into a plastic vial.
2. Indicate the specimen source and source location on label.
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Secondary ID
801557Useful For
Identifying the presence of urine as a cause for accumulation of fluid in a body compartment
Assessing adequacy of peritoneal dialysis treatment protocols
Method Name
Photometric
Reporting Name
Urea Nitrogen, BFSpecimen Type
Body FluidSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Body Fluid | Refrigerated (preferred) | 7 days | |
| Frozen | 30 days | ||
| Ambient | 24 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Cerebrospinal fluid Breast milk Saliva Nasal secretions Gastric secretions Bronchoalveolar lavage (BAL) or bronchial washings Colostomy/ostomy Feces Urine Sputum Vitreous fluid |
Reject |
Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysPerforming Laboratory
Mayo Clinic Laboratories in Florida
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
84520
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| UEBF | Urea Nitrogen, BF | 3093-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| UE_BF | Urea Nitrogen, BF | 3093-2 |
| FLD15 | Fluid Type, Urea Nitrogen | 14725-6 |