PROTEIN TOTAL

Test Code

LAB118

Quest Code

754

CPT Codes
84155

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Plasma

Methodology
Spectrophotometry (SP)

Setup Schedule

Daily

Report Available

1 day

Reference Range

	Male (g/dL)	Female (g/dL)
<1 Month	4.1-6.3	4.2-6.2
1-5 Months	4.7-6.7	4.4-6.6
6-11 Months	5.5-7.0	5.6-7.9
1-19 Years	6.3-8.2	6.3-8.2
≥20 Years	6.1-8.1	6.1-8.1

Clinical Significance

Total protein is useful in evaluating patients for nutritional status, liver disease, protein-losing renal and gastrointestinal diseases, and many other medical conditions. Elevated concentrations may be observed in patients with monoclonal gammopathies, autoimmune hepatitis, inflammation, and other medical conditions.

Performing Laboratory

Quest Diagnostics-Lenexa

10101 Renner Blvd

Lenexa, KS 66219-9752

Last Updated: August 13, 2021

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.