Albumin (ALB)

Additional Information:

UFHPL Epic order code: LAB45

CPT Code(s):


Specimen Requirements:

Type: Peripheral blood


  • Serum, gel
  • Plasma, gel

Sample Volume: 0.5mL serum; separate serum or plasma from cells within two hours of collection.

Stability (collection to time of analysis/testing):

  • Ambient: 7 days
  • Refrigerated: 30 days
Unacceptable Conditions: Moderate-to-gross hemolysis


This Albumin method is a modification of the Doumas and Rodkey procedures utilizing a different buffering system. At pH 4.2, bromocresol green reacts with albumin to form an intense green complex. The absorbance of the albumin-BCG complex is measured bichromatically (600/800nm) and is proportional to the albumin concentration in the sample.


Within 24 hours

Reference Values:

3.5 – 5.2 g/dL