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43624:APOLIPOPROTEIN B-100
Methodology:Nephelometry (NEPH)
Edit Date:4/18/2010
Performed:Daily
Released:Same day as tested
CPT Code:82172
Specimen Collection Details
Collection:One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube.
Handling:Allow to clot, centrifuge and separate serum from cells within 2 hours. Refrigerate. Freeze if specimen cannot be assayed within 8 days. Allow no more than one freeze/thaw cycle.
Stability:8 days refrigerated, or 3 months frozen if frozen within 24 hours of collection.
Standard Volume:1 mL serum.
Minimum Volume:0.5 mL serum.
Transport:Refrigerated, or frozen on dry ice.
Comments:Apolipoprotein B is the main protein component of LDL (log-density lipoprotein) and accounts for 95% of the total protein content of LDL. Elevated levels of Apo B are frequently found in patients with atherosclerotic vascular changes and are a risk factor for atherosclerosis.
Rejection Criteria:Specimen frozen and thawed more than once.

MEDICARE MAY REQUIRE A SIGNED ADVANCE BENEFICIARY NOTICE (ABN) FOR THIS TEST
Reference Range:
Female 55-125 mg/dL
Male 55-140 mg/dL