Test Overview

Test Methodology

Colorimetric (Biuret)

Test Usage

Evaluate serum proteins, nutritional status, liver function test, establish the diagnosis of hypoproteinemia and hyperproteinemia.

Reference Range*

1-11 years: 5.8-8.0 g/dL (58-80 g/L), 12-150 years: 6.0-8.3 g/dL (60-83 g/L).

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

There is a potential interference in results for patients receiving dextran as a blood volume expander. Results from plasma may be up to 0.4 mg/dL higher than those from serum due to fibrinogen in the sample.

Test Details

Days Test Performed

Daily, 24 hours

Analytic Time

4 hours

Soft Order Code

PROT

MiChart Code

Protein

Synonyms

Laboratory

Chemical Pathology

STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Looking to Order a Test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Specimen Requirements

Offsite Collection Instructions

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Container

Normal Volume

0.5 mL serum

Minimum Volume

0.25 mL serum

Billing Information

Fee Codes

CPT Code

84155

LOINC

2885-2

Have More Billing Questions?

Explore our helpful billing resources:

Billing Resources

Billing FAQ