Apolipoprotein B Test
Apolipoprotein B Test
The apolipoprotein B test measures the level of Apo B, a protein associated with low-density lipoprotein (LDL) cholesterol. LDL cholesterol is considered "bad" because it deposits excess cholesterol in the tissues from the bloodstream.
Thus, getting your apolipoprotein B test done can help in the early detection of cardiovascular disease risk, as high Apo B levels may indicate increased LDL function and an increased risk of heart disease. It can also be used for cholesterol monitoring and diagnosing a rare inherited apolipoprotein B (apo B) deficiency.
This test is also known as:
Apolipoprotein B-100, ApoB100, Apolipoprotein B, Apo B
Who Should Get Tested?
Apolipoprotein B test is recommended to be performed frequently in adults who are at risk of developing cardiovascular diseases. Examples of risk factors include
If you are over 60 years of age
High cholesterol on a prior test
Past history of heart disease
Family history of heart disease or of high cholesterol
Being overweight
Smoking cigarettes
Having high blood pressure (hypertension)
Alcohol consumption
Having type 2 diabetes
Eating an unhealthy diet
Leading an inactive lifestyle
Taking medications for high cholesterol levels
Test Preparation
No special preparation is required for an apolipoprotein B test. However, if other tests such as a cholesterol panel are ordered along with this test, then it is important to fast for 9 to 12 hours prior to sample collection.
Interpretation of Results
The units of measurement for the results are Milligrams per decilitre (mg/dL)
Normal levels of ApoB-100 in adults are less than 100 mg/dL.
Deviation from normal levels indicates the following:
· Generally, an apolipoprotein B level less than 100 mg/dL is considered to be optimal.
· High levels of Apolipoprotein B are generally considered harmful, as they are associated with a higher risk of cardiovascular diseases.
Low levels of Apo B are associated with a decreased risk of cardiovascular diseases.
FAQs
How is the Apolipoprotein B test different from a standard cholesterol test?
While cholesterol tests focus on total, HDL, and LDL cholesterol, the apolipoprotein B test assesses a specific protein associated with LDL particles, providing a specific measure.
How is the sample collected for an apolipoprotein B test?
A blood sample is taken from a vein in the arm using a fine needle. This procedure typically takes no longer than five minutes.
What is the turnaround time (TAT) for the results of an apolipoprotein B test?
What are the risks associated with an apolipoprotein B test?
This test involves negligible risk. There might be slight bruising or tenderness around the site of needle insertion.
What might affect my apolipoprotein B test result?
The results of an apolipoprotein B test may be affected by factors such as the use of certain medications, alcohol consumption, and smoking. Additionally, stress and some medical conditions can also affect the accuracy of the test results. So, it is advised to consult your healthcare provider before undergoing the test.
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