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Test Code ALB Albumin

Additional Codes

Epic: LAB45

Specimen Required

Collection Container/Tube
Preferred: Serum gel
Acceptable: Plasma Lithium Heparin
Submission Container/Tube: Plastic vial
Specimen Volume: 3.0 mL
Collection Instructions: Centrifuge and separate cells after clot formation and within 4 hours of collection.  

Specimen Minimum Volume

0.10 mL

Specimen Stability

Room Temperature: 2.5 months
Refrigerated: 5 months
Frozen: 3 months

Reference Range

0 - 4 days

2.8 - 4.4 g/dL


4 days - 14 years

3.8 - 5.4 g/dL


14 - 150 years

3.5 - 5.0 g/dL

Rejection Due To

Unlabeled, mislabeled, wrong tube type, hemolyzed, QNS, exceeds specimen stability requirements.

Report Available

Same day

Clinical Significance

Albumin, synthesized in the liver, having the highest concentration of all serum proteins, ~55-60%.  Albumin maintains oncotic pressure and transports many substances.  Decreased values are seen in over hydration, hyper infusion, malnutrition, malabsorption, kidney disease, liver diseases, chronic alcoholism, pregnancy, acetaminophen overdose, cancer, severe burns and renal protein loss.  Usually seen increased in dehydration.

Method Name

Bromcresol Purple


Hemolysis increases results by up to 5%.  Bilirubin may decrease results by 2%, and Intralipid may increase Albumin results by 10%.

CPT Codes




Day(s) Performed