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Protein, Total, Body Fluid

CPT: 84157
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Expected Turnaround Time

1 - 2 days


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Specimen Requirements


Specimen

Body fluid


Volume

1 mL


Minimum Volume

0.3 mL (Note: This volume does not allow for repeat testing.)


Container

Clean container


Collection

Tube must be labeled with patient's full name and type of fluid collected.


Storage Instructions

Maintain specimen at room temperature.


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Patient Preparation

Usual aseptic aspiration procedure


Causes for Rejection

Improper labeling


Test Details


Use

Evaluate effusions; diagnose transudate versus exudate


Methodology

Colorimetric


Reference Interval

• Peritoneal: Not established

• Pleural:

− Transudate: <3 g/dL

− Exudate: >3 g/dL

• Synovial: <2.5 g/dL

The method performance specifications have not been established for this test in body fluid. The test result should be integrated into the clinical context for interpretation.


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
019588 Protein, Body Fluid 2881-1 019588 Protein, Body Fluid g/dL 2881-1

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2018, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf