Lipoprotein A
(Specimen Container)
Serum Separator Tube (SST)
(Transport Temperature)
| Temperature | Period |
|---|---|
| Room temperature | Unacceptable |
| Refrigerated | 7 days |
| Frozen | 30 days |
Gross lipemia
PPT potassium
EDTA (white-top) tube
Cardiovascular disease (CVD) risk refinement in patients with moderate or high risk based on conventional risk factors. Lipoprotein (a) (Lp[a]) consists of an LDL particle that is covalently bound to an additional protein, apolipoprotein (a) (Apo[a]). Apo(a) has high-sequence homology with the coagulation factor plasminogen and, like LDL, Lp(a) contains apolipoprotein B100 (ApoB). Thus, Lp(a) is both proatherogenic and prothrombotic. Lp(a) is an independent risk factor for coronary heart disease (CHD), ischemic stroke, and aortic valve stenosis. Lp(a) has been referred to as “”the most atherogenic lipoprotein.”” The mechanism of increased risk is unclear but most likely involves progression of atherosclerotic stenosis via intimal deposition of cholesterol and promotion of thrombosis via homology to plasminogen.
≤ 30 mg/dL
