Apolipoprotein A-1

Alphabetical Test listing

Apolipoprotein A-1-13353

Apolipoprotein A-1
A-1 Apolipoprotein
Alpha Apolipoprotein
Apo A-1

Patient should fast 12 - 14 hours prior to specimen collection

Fasting for a blood test

2.0 mL

Spin and separate

EDTA plasma
Heparin plasma

Gold serum separator (SST) tube

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel




Gold - Spin

Lavender/Dk green - Spin and separate


Gold serum separator (SST) tube

Transfer vial/tube with cap - 12mL (LabCorp)


Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x 3

  • Specimen from nonfasting patient
LabCorp Burlington (016873): R-LC
Mo - Fr, Su
1 - 2 days



An interpretive report will be provided


Apo A-1 comprises 60% to 70% of the protein content of HDL. Apo A-1 serves as an activator of LCAT which is involved in the transport of cholesterol from peripheral tissues to the liver where it is degraded. Decreased serum HDL cholesterol levels have been reported to correlate with increased risk of coronary artery disease (CAD); however, Apo A-1 has been suggested as a better discrimination of CAD than HDL. Apo A-1 levels also correlate with survival rates or risk factors for patients with myocardial infarction and peripheral vascular disease. Measurement of Apo A-1 may also aid in the diagnosis of Tangier disease (absence of alpha-lipoprotein).

Result 1869-7