PatientsVisitorsLocations & ServicesAbout the RegionJoin Our TeamPhysicians
Find:  Locations | Services
Pathology and Laboratory Medicine HomeTest and Services CatalogueTransfusion Medicine Product CataloguePolicy and ProcedureJob AidsSpecimen Collection and TransportRequisitionsAntibiogramsGenetic Testing and Molecular GeneticsMicrobiology EssentialsTransfusion EssentialsReference RangesLaboratory SuppliesAcute Care SCM GuidelinesContact InformationPhysician Access to Patient ResultsNew Clinic or Provider Information Changes
Pathology and Laboratory Medicine
Test Catalogue

​Lipoprotein A


Specimen Requirements​ ​

  • ​Serum
​Required Volume
  • ​Optimal Volume: 4.5 mL Full collection tube
  • Minimum Volume: 1 mL
    (Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Grounds for Rejection​

Testing Information​ ​

  • ​Shipped weekly 
Testing Site​
  • ​Referred out by St. Paul’s Hospital Laboratory to Dynacare (Ontario)
Results Reporting​
  • Two day turnaround time by testing laboratory
Alternate Test Names​
  • ​LPa
  • LP a
​Additional Comments
  • ​Lipoprotein A [Lp(a)] is a unique lipoprotein that is structurally related to LDL, containing one apo B-100 per particle. Lp(a) also contains a carbohydrate-rich protein called apo (a) which is covalently bound to apo B-100 through a disulfide bond.  Apo(a) has significant sequence homology with plasminogen, but unlike plasminogen, it is not a protease activity.
  • Lp(a) is considered proatherogenic and prothrombotic, and it is an independent risk factor for coronary heart disease, ischemic stroke and aortic valve stenosis.
  • Serum Lp(a) is related to genetic factors, and are not affected by diet, exercise and lipid-lowering pharmaceuticals
SHR LIS Test Code​
  • ​LPOA (For Laboratory Use Only)


​If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-693 v3

Last Modified: Friday, October 26, 2018 |
Questions or feedback about this page?