Sign in →

Test ID TPBF Protein, Total, Body Fluid

Useful For

Identification of exudative pleural effusions


Differentiating hepatic from other causes of ascites that have elevated serum ascites albumin gradient (SAAG) using peritoneal fluid

Method Name


Reporting Name

Protein, Total, BF

Specimen Type

Body Fluid

Ordering Guidance

For protein measurement in spinal fluid specimens, order TPSF / Protein, Total, Spinal Fluid. Testing will be changed to TPSF if this test is ordered on that specimen type.

Necessary Information

1. Date and time of collection are required. 2. Specimen source is required.

Specimen Required

Specimen Type: Body fluid

Preferred Source:

-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)

-Pleural fluid (pleural, chest, thoracentesis)

-Drain fluid (drainage, JP drain)


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.

Specimen 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

Reference Values

An interpretive report will be provided.

Day(s) Performed

Monday through Sunday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
TPBF Protein, Total, BF 2881-1


Result ID Test Result Name Result LOINC Value
TPBF1 Protein, Total, BF 2881-1
FLD23 Fluid Type, Protein, Total 14725-6

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.

Report Available

Same day/1 to 2 days

NY State Approved



If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.