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- Beta Apolipoprotein
LDL and its major protein, apolipoprotein B, play an essential role in lipid transport and metabolism. Apo B may regulate cholesterol synthesis through its interaction with specific cell membrane receptors and by inhibition of HMG Co A reductase. This enzyme has been identified as the rate controlling enzyme in cholesterol biosynthesis. Apo B may be important in the genesis of atherosclerosis and its quantitation useful in the evaluation of patients at risk for or having coronary atherosclerosis (CAD). High levels indicate increased risk for CAD.
Apolipoprotein B (mg/dL)
90 – 99
100 – 120
ASCVD Risk Category
Therapeutic Target APO B (mg/dL)
Very High Risk
<80 (if extreme risk <70)
Serum (preferred) or plasma
Red-top tube, gel-barrier tube, green-top (heparin) tube, or lavender-top (EDTA) tube
Patient must be fasting 12 to 14 hours.
Separate serum or plasma from cells. Transfer specimen to a plastic transport tube.
Maintain specimen at room temperature.
Causes for Rejection
Specimen from nonfasting patient
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|167015||Apolipoprotein B||1884-6||167015||Apolipoprotein B||mg/dL||1884-6|