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Apolipoprotein B : 5224
Test CodeAPOBQ or 5224
CPT Codes
82172
Instructions
Fasting for at least 12 hours is required.
Serum separator tube or plain red.
Serum separator tube or plain red.
Transport Container
Centrifuge the serum separator tube and transport. If plain red, centrifuge and aliquot 2 mL serum (Min: 0.5 mL) into a standard transport tube.
Transport Temperature
Refrigerated.
Specimen Stability
Ambient: 7 days; Refrigerated: 10 days; Frozen: 30 days
Methodology
Immunoassay
Setup Schedule
Monday - Saturday
Report Available
1-2 days (From receipt at performing laboratory)
Reference Range
<90
Risk Category:
Optimal <90
Moderate 90-129
High > or = 130
A desirable treatment target may be <80 mg/dL or lower depending on the risk category of the patient including patients on lipid lowering therapies, patients with ASCVD, diabetes with >1 risk factors, Stage 3 or greater CKD with albuminuria, or heterozygous familial hypercholesterolemia. ApoB relative risk category cut points are based on AACE/ACE and ACC/AHA recommendations (Grundy SM, et al. 2019. doi:10.1016/j.jacc.2018.11.002; Handelsman Y, et al. 2020. doi:10.4158/CS-2020-0490).
Risk Category:
Optimal <90
Moderate 90-129
High > or = 130
A desirable treatment target may be <80 mg/dL or lower depending on the risk category of the patient including patients on lipid lowering therapies, patients with ASCVD, diabetes with >1 risk factors, Stage 3 or greater CKD with albuminuria, or heterozygous familial hypercholesterolemia. ApoB relative risk category cut points are based on AACE/ACE and ACC/AHA recommendations (Grundy SM, et al. 2019. doi:10.1016/j.jacc.2018.11.002; Handelsman Y, et al. 2020. doi:10.4158/CS-2020-0490).
Clinical Significance
Apolipoprotein B (APO B) has been reported to be a powerful indicator of CAD. In some patients with CAD, APO B is elevated even in the presence of normal LDL cholesterol.
Performing Laboratory
Quest Diagnostics
