Overview: Albumin TestIntroduction: The Albumin Test measures albumin, a major blood protein, to assess liver or kidney health, affected by conditions causing swelling, fatigue, or jaundice. Following 2023 clinical biochemistry guidelines, it uses spectrophotometry for high accuracy, aiding in diagnosing metabolic disorders. This test is critical for guiding treatments like diuretics, preventing complications, and improving outcomes in liver and kidney health.
Other Names: Albumin Assay, Serum Albumin Test.
FDA Status: Laboratory-developed test (LDT), meeting biochemistry standards for diagnostic accuracy.
Historical Milestone: Albumin testing began in the 1950s with electrophoresis. Spectrophotometry emerged in the 1970s, and by the 2000s, automated assays improved clinical utility.
Purpose: Diagnoses liver or kidney disorders, guides therapy, and monitors disease in patients with swelling or fatigue.
Test Parameters: 1. Albumin
Pretest Condition: Fasting for 10-12 hours is required. Collect serum, plasma, or urine at any time. Report symptoms like swelling, jaundice, or medications affecting liver/kidney function.
Specimen: 2-5 mL serum (SST), 2-4 mL plasma (EDTA), or 5-20 mL urine (sterile container). Transport in a biohazard bag within 8 hours.
Sample Stability at Room Temperature: 8 hours
Sample Stability at Refrigeration: 7 days
Sample Stability at Frozen: 6 months
Medical History: Document swelling, fatigue, jaundice, or family history of liver/kidney disorders. Include current medications or nutritional status.
Consent: Written consent required, explaining the test's purpose, diagnostic implications, and potential therapy needs.
Procedural Considerations: Uses spectrophotometry to measure albumin levels. Results are available in 1-2 days, supporting rapid diagnosis.
Factors Affecting Result Accuracy: Dehydration or malnutrition may affect albumin levels. Hemolysis or improper storage can degrade samples.
Clinical Significance: Low albumin suggests liver or kidney dysfunction, prompting further testing or therapy. Normal levels may require monitoring in chronic conditions.
Specialist Consultation: Consult a hepatologist or nephrologist for result interpretation. Nutritional counseling is advised for low albumin.
Additional Supporting Tests: Liver function tests, creatinine, or imaging to confirm liver/kidney dysfunction.
Test Limitations: Non-specific albumin changes require clinical correlation. Transient changes may need repeat testing.
References: AASLD Liver Guidelines, 2023; Post A, Nephrology Dialysis Transplantation, 2022.
