Apolipoprotein A-1-13353

LabCorp is currently experiencing testing and reporting delays for this assay.

Test info

  
Apolipoprotein A-1
  
13353
  
LAB13353
  
APOA1
  
A-1 Apolipoprotein
Alpha Apolipoprotein
Apo A-1

Specimen

  

Patient should fast 12 - 14 hours prior to specimen collection

Fasting for a blood test

  
Serum
  
  
2.0 mL
  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection
  
EDTA plasma
Heparin plasma
  

Gold serum separator (SST) tube

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel

 

 

  

Immediatley following collection, mix sample by inverting 8 - 10 times

  

Gold:

  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection

Lavender/Dk green:

  1. Spin
  2. Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as the appropriate plasma type, within two (2) hours of sample collection
  

Gold serum separator (SST) tube

Transfer vial/tube with cap - 12mL (LabCorp)

  

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x 3

  
  • Specimen from nonfasting patient

Performance

  
LabCorp Burlington (016873): R-LC
  
Mo - Fr, Su
  
1 - 2 days
  

Immunologic

Clinical and Interpretive info

  

An interpretive report will be provided

  

Apo A-1 comprises 60% to 70% of the protein content of HDL. Apo A-1 serves as an activator of LCAT which is involved in the transport of cholesterol from peripheral tissues to the liver where it is degraded. Decreased serum HDL cholesterol levels have been reported to correlate with increased risk of coronary artery disease (CAD); however, Apo A-1 has been suggested as a better discrimination of CAD than HDL. Apo A-1 levels also correlate with survival rates or risk factors for patients with myocardial infarction and peripheral vascular disease. Measurement of Apo A-1 may also aid in the diagnosis of Tangier disease (absence of alpha-lipoprotein).

Billing

  
82172
  
No
  
Result 1869-7

Tracking

  
03/27/2019
  
03/11/2022
  
02/16/2021