Apolipoprotein A (ApoA) is the principal protein associated with high-density lipoprotein (HDL) particles, which plays a role in reverse cholesterol transport.
HDL cholesterol (HDL-C) and ApoA concentrations are inversely related to the risk for coronary artery disease (CAD). There are a variable number of ApoA proteins per HDL particle, thus ApoA is not strictly a surrogate marker for HDL-C.
It is not to be confused with lipoprotein (a), which has a fundamentally different role and interpretation.
Lithium heparin and EDTA plasma are NOT acceptable.
Chilled (2 - 8 degrees Celsius)
500 uL serum. Fridge 4°C minimum 300 uL serum.
Although not strictly a surrogate for HDL-C, measurement of ApoA is often used to corroborate very elevated or very low HDL-C concentrations.
It otherwise contributes little above HDL-C to the evaluation of CVD risk and is rarely requested outside the Lipid Clinic.
Male reference range 0.94 – 1.78 g/L
Female reference range 1.01 – 1.99 g/L
$17.1 (Exclusive of GST)
Batched approximately 2 time per week
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