A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Apolipoprotein A1

Test Code
APOA


Quest Code
5223


CPT Codes
82172

Preferred Specimen
2 mL serum from SST tube


Minimum Volume
0.5 mL


Transport Container
Transport tube


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 10 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly lipemic


Methodology
Immunoassay (IA)

Setup Schedule
Monday-saturday


Reference Range
Male ≥115 mg/dL  
Female ≥125 mg/dL  
     
Risk Category Male Female
Optimal ≥115 mg/dL ≥125 mg/dL
High <115 mg/dL <125 mg/dL
Cardiovascular event risk category cut points (optimal, high) are based on the AMORIS study, Walldius G et al. J Intern Med. 2004;255:188-205.


Clinical Significance

Apolipoprotein A1 is the primary protein associated with HDL cholesterol. Like HDL cholesterol, increased concentrations are associated with reduced risk of cardiovascular disease.



Performing Laboratory
Quest Diagnostics Nichols Institute-Chantilly VA
14225 Newbrook Drive
Chantilly, VA 20151-2228




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.