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Test ID: Albumin
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Albumin
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Useful For
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Monitoring individuals dietary supplementation and diagnosis of liver of liver and kidney disorder.
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Method name and description
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Colorimetric test
At the reaction pH, BCP binds selectively with albumin, causing a color change that is measured photometrically.
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Clinical information
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Albumin is a carbohydrate free protein, which constitutes 55 – 65 % of total plasma protein. It maintains plasma oncotic pressure, and is also involved in the transport and storage of a wide variety of ligands and is a source of endogenous aminoacids.
Hyperalbuminemia is of little diagnostic significance except in the case of dehydration.
Hypoalbuminemia occurs during many illnesses and is caused by several factors:
- Compromised synthesis due to either liver disease or as a consequence of reduced protein uptake;
- Elevated catabolism due to tissue damage (severe burns) or inflammation; Malabsorption of aminoacids (Crohn’s disease); Proteinuria as a consequence of nephrotic syndrome;
- Protein loss via the stool (neoplastic disease).
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Specimen type / Specimen volume / Specimen container
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Specimen type: Serum, Plasma
Minimum volume of sample: 1 mL
Serum: Plain tube (red or yellow top)
Plasma: Li‑heparin tube
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Collection instructions / Special Precautions / Timing of collection
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If possible, the patient should be recumbent for at least 1 hour preceding specimen collection. Erect posture causes a redistribution of body fluids, increasing the serum albumin concentration.
Do not use citrate or oxalate tubes
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Storage and transport instructions
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Storage: 2.5 months at 20 – 25°C
5 months at 4 – 8°C
4 months at ‑20 °C (± 5 °C)
Transport: 4-25°C
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Specimen Rejection Criteria
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Grossly hemolyzed, icteric and lipemic samples, wrong collection container, insufficient sample.
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Biological reference intervals and clinical decision values
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Patient Sex
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Age Range
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Range (g/L)
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Female/Male
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0 to 1 year
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30-45
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Female/Male
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1 to 16 years
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30-50
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Female/Male
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16 to 150 years
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35-50
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Turnaround time / Days and times test performed / Specimen retention time
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Daily (24/7)
Turn-around time
STAT: 1 hour
Routine: one working day
Specimen retention: 4 days
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