Albumin, Serum

  1. Test performed at the York Hospital Laboratory.

Test Code

CPT Codes

Preferred Specimen
0.2 mL serum collected in a serum separator tube (SST)

Other Acceptable Specimens
0.2 mL serum collected in a no additive (red-top) tube, transferred to a plastic screw-cap vial 0.2 mL plasma collected in a lithium heparin (green-top) tube

Transport Temperature

Specimen Stability
Room temperature: 7 days Refrigerated: 1 month Frozen: 6 months


Setup Schedule

Report Available
Next Day Available STAT 1/2 Hour

Reference Range
Age Albumin (g/dL)
Newborn 3.2 - 4.8
<1 Month 2.5 - 5.5
1-3 Months 2.1 - 4.8
4-6 Months 2.8 - 5.0
7-12 Months 3.2 - 5.7
1 Year 1.9 - 5.0
2-3 Years 3.3 - 5.8
4-6 Years 3.5 - 5.2
7-19 Years 3.7 - 5.6
Adult 2.6 - 5.2

Clinical Significance
Of all serum proteins, albumin is present in the highest concentration. It maintains the plasma oncotic pressure and the transport of many substances. Increased serum albumin may indicate dehydration or hyperinfusion with albumin; a decrease is found in rapid hydration, overhydration, severe malnutrition and malabsorption, severe diffuse liver necrosis, chronic active hepatitis, and neoplasia. Albumin is commonly reduced in chronic alcoholism, pregnancy, renal protein loss, thryoid dysfunction, peptic ulcer disease, and chronic inflammatory diseases.

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.