An Apolipoprotein-E test is often carried out to check and see if certain genes are causing changes in your current cholesterol and triglyceride levels. This test is often essential to determine the state of your health with regard to heart disease as well as to check for susceptibility for Alzheimer’s disease. If you have a family history of Alzheimer’s, or rather your loved ones have been diagnosed with Alzheimer’s disease, then you need to check in with your doctor right away and get yourself tested. Since Alzheimer’s disease is supposed to be genetic and hereditary, it makes sense for you to get yourself tested at the earliest.