Overview: Lipoprotein Fractionation TestIntroduction: The Lipoprotein Fractionation Test analyzes lipoprotein fractions to assess heart disease risk, causing chest pain or fatigue. Following 2023 AHA guidelines, it uses biochemical methods for high specificity, supporting cardiac screening. This test is critical for guiding risk assessment, treatment planning, and improving outcomes in biochemistry for patients with suspected cardiovascular disease.
Other Names: Lipoprotein Fraction Assay, Lipid Profile Fractionation.
FDA Status: Laboratory-developed test (LDT), meeting biochemistry standards for diagnostic accuracy.
Historical Milestone: Lipoprotein fractionation began in the 1980s with cardiovascular research. Biochemical methods improved in the 2000s, enhancing risk assessment precision.
Purpose: Analyzes lipoprotein fractions to assess heart disease risk, guides treatment, and evaluates patients with chest pain or fatigue.
Test Parameters: 1. Lipoprotein Fractions
Pretest Condition: Fasting 10-12 hours required. Collect serum or plasma. Report history of chest pain, fatigue, or cardiovascular risk factors.
Specimen: Serum (SST, 2-5 mL), Plasma (EDTA, 2-4 mL). Transport in a biohazard container.
Sample Stability at Room Temperature: 8 hours
Sample Stability at Refrigeration: 7 days
Sample Stability at Frozen: 6 months
Medical History: Document chest pain, fatigue, hypertension, or family history of heart disease. Include current medications, especially statins.
Consent: Written consent required, detailing the tests purpose, cardiac risk implications, and risks of blood collection.
Procedural Considerations: Uses biochemical methods (e.g., ultracentrifugation) to analyze lipoprotein fractions in serum or plasma. Results are available in 3-5 days, supporting clinical decisions. Performed in laboratories, often for advanced cardiac risk assessment.
Factors Affecting Result Accuracy: Hemolysis, lipemia, or improper sample storage can affect results. Non-fasting samples may reduce accuracy.
Clinical Significance: Abnormal lipoprotein fractions indicate high heart disease risk, guiding targeted therapy or lifestyle changes. Normal profiles may require further risk assessment.
Specialist Consultation: Consult a cardiologist for result interpretation and treatment planning.
Additional Supporting Tests: LDL cholesterol, Lp(a), or coronary artery calcium scan to assess heart disease risk.
Test Limitations: Complex analysis requires specialized equipment; clinical correlation is needed. Not specific to one condition.
References: AHA Lipid Guidelines, 2023; Circulation, Grundy SM, 2022.
