Apolipoproteins A1 & B Test
About Apolipoproteins A1 & B Test
| Field | Value |
|---|---|
| Also Known As | Apo A1 & Apo B test, Apolipoproteins A1 & B serum test |
| Sample Type | Venous blood (serum) |
| Fasting Required | Not required |
| Report Time | 1 to 2 working days |
| Recommended For | Adults of all ages, male and female; especially those with cardiovascular risk factors |
| Price | Starting at ₹1000 |
What Is an Apolipoproteins A1 & B Test?
The apolipoproteins A1 & B test measures two proteins that carry cholesterol through the bloodstream. Apo A1 is the main protein in HDL ("good cholesterol"), while Apo B is the main protein in LDL ("bad cholesterol") and other harmful lipoproteins. Doctors order this test to get a clearer picture of a person's heart disease risk. It is also called the apo A1 & apo B test or apolipoproteins A1 & B serum test because it is performed on a blood serum sample drawn from a vein.
What Does an Apolipoproteins A1 & B Test Measure?
The apolipoproteins A1 & B test analyses three related values from a single blood sample. Here is what each one tells you:
| Parameter | What It Represents |
|---|---|
| Apolipoprotein A1 (Apo A1) | The primary protein in HDL; helps remove excess cholesterol from tissues and carry it to the liver for disposal |
| Apolipoprotein B (Apo B) | The primary protein in LDL and other harmful lipoproteins; high levels are linked to artery blockage and cardiovascular disease |
Why Is an Apolipoproteins A1 & B Test Done?
This test is ordered when a doctor wants to assess cardiovascular risk more precisely than a routine cholesterol test allows.
Common Symptoms That May Require This Test
The following symptoms or risk factors commonly prompt a doctor to request this test:
- Chest pain or tightness
- Shortness of breath during everyday activity
- Palpitations (a noticeable or irregular heartbeat)
- Persistent fatigue without a clear cause
- Unexplained high cholesterol on a routine test
- Personal history of a heart attack or stroke
- Family history of early heart disease
Conditions This Test Can Help Detect
Doctors use this test to help identify or monitor a range of conditions, including:
- Elevated cardiovascular disease risk (high Apo B combined with low Apo A1)
- Familial hypercholesterolaemia (inherited high cholesterol)
- Dyslipidaemia (abnormal lipid levels in the blood)
- Hepatobiliary disease (liver and bile duct conditions) when Apo B is very low
- Tangier disease or other genetic disorders affecting lipoprotein production when apo A1 is extremely low
Apolipoproteins A1 & B Test for Chronic Disease Monitoring
People being treated for dyslipidaemia or high cholesterol may have their apo B levels checked regularly to see how well their treatment is working. Research shows that apo B is a better marker than LDL cholesterol alone for tracking the benefit of statin therapy. When starting or adjusting lipid-lowering treatment, testing is typically done every 6 to 12 weeks, then once a year once levels are stable.
How to Prepare and What to Expect
Preparing for this test is straightforward, and the sample collection process is quick and simple.
Do You Need to Fast?
No fasting is required for the apolipoproteins A1 & B serum test when taken on its own. Apolipoprotein levels are not significantly affected by recent food intake. If your doctor has also requested a full lipid panel alongside this test, fasting for 9 to 12 hours beforehand is recommended. Always follow the instructions given by your doctor or the diagnostic centre at the time of booking.
Practical Tips Before Your Test
A few simple steps can help ensure your results are as accurate as possible:
- Drink plenty of water before the appointment
- Tell your doctor about all medications, supplements, or herbal remedies you take
- Wear a short-sleeved top or clothing that allows easy access to your arm
- Avoid strenuous exercise the day before the test
- Do not drink alcohol for at least 24 hours before collection
Step-by-Step Procedure
Here is what happens during a typical blood sample collection for this test:
- A trained phlebotomist seats you comfortably and identifies a suitable vein, usually in the crook of your arm.
- An elastic band (tourniquet) is tied gently around your upper arm to make the vein easier to see.
- The skin over the vein is cleaned with an alcohol swab and allowed to dry.
- A fine needle is used to draw a small blood sample. The entire process usually takes no longer than five minutes.
- Once enough blood has been collected, the needle is removed.
- A small bandage or cotton swab is placed over the site. You can resume normal activities straight away.
Factors That Can Affect Accuracy
Certain factors may influence your apo A1 & apo B test results. Be sure to mention any of the following to your doctor:
- Recent changes in diet or significant weight change
- Regular alcohol consumption or smoking
- High stress levels at the time of testing
- Current medications, particularly statins, fibrates, oestrogen, androgens, niacin, or diuretics
- Active infection or recent illness
- Dehydration at the time of the blood draw
Understanding Your Apolipoproteins A1 & B Test Results
Your results should always be reviewed alongside your full medical history and other test findings. The table below shows the general reference ranges used for this test:
Apolipoprotein A-1 Reference Ranges
| Age | Apolipoprotein A-1 (g/L) Female | Apolipoprotein A-1 (g/L) Male |
|---|---|---|
| <14 days | 0.71 – 0.97 | 0.62 – 0.91 |
| 15 days – 1 year | 0.53 – 1.75 | 0.53 – 1.75 |
| 1y – 14y | 0.80 – 1.64 | 0.80 – 1.64 |
| 14y – 19y | 0.72 – 1.54 | 0.72 – 1.54 |
| 19y – 60y | 1.01 – 2.23 | 0.95 – 1.86 |
| >60y | 0.91 – 2.24 | 0.73 – 1.86 |
Apolipoprotein B Reference Ranges
| Age | Apolipoprotein B (g/L) |
|---|---|
| <14 days | < 0.68 |
| 15 days – 1 year | < 1.24 |
| 1y – 6y | < 0.94 |
| 6y – 19y | < 0.85 |
| >19y | 0.4 – 1.20 |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Some circumstances can shift apolipoprotein levels away from their usual values:
- Apo B levels may be higher during pregnancy, after coffee consumption, and during autumn and winter months.
- Apo A1 levels tend to be higher during pregnancy as part of normal physiological changes.
- Chronic liver disease, chronic kidney disease, smoking, and obesity are associated with lower Apo A1 levels.
- In very rare cases, a condition involving abnormal protein production (such as Waldenström macroglobulinaemia) may produce unreliable results.
How to Maintain Healthy Levels
These general lifestyle habits support a healthy balance of apo A1 and apo B:
- Aim for at least 30 minutes of moderate physical activity on most days of the week.
- Eat a diet rich in fruits, vegetables, and whole grains, and limit saturated fats found in processed and fried foods.
- Maintain a healthy body weight and avoid smoking, both of which are linked to lower Apo A1 levels.
Lupin Diagnostics Apolipoproteins A1 & B Test Price and Home Collection
The apolipoproteins A1 & B test price starts at approximately ₹1000, and home sample collection is available across multiple cities in India. This table shows approximate prices:
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹1000 |
| Bengaluru | ₹1000 |
| Hyderabad | ₹1000 |
| Chennai | ₹1000 |
| Kolkata | ₹1000 |
| Pune | ₹1000 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Follow these steps to book your test:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home collection for the apolipoproteins A1 & B test across cities in India, so there is no need to visit a centre unless you prefer to. All samples are processed in NABL-accredited laboratories by experienced professionals. Your digital report is delivered to you via email or WhatsApp once ready.
Frequently Asked Questions
Apo A1 is the main protein in HDL cholesterol and helps carry excess cholesterol away from artery walls back to the liver. Apo B is the main protein in LDL and other harmful lipoproteins and is associated with the build-up of fatty deposits in arteries. In simple terms, apo A1 is protective while apo B is potentially harmful when elevated.
Fasting is not required when this test is taken on its own, as apolipoprotein levels are not significantly affected by recent meals. However, if your doctor has requested a lipid panel at the same time, fasting for 9 to 12 hours is advisable. Always follow the instructions given by your doctor or the diagnostic centre at the time of booking.
A standard lipid profile measures cholesterol levels in the blood. The apolipoproteins A1 & B test measures the actual proteins that carry that cholesterol. Research suggests that these protein levels are more strongly linked to cardiovascular disease risk than cholesterol fractions alone, making them a useful addition to standard lipid testing.
Yes, several common medicines can alter apolipoprotein levels. These include statins, fibrates, oestrogen, androgens, niacin, and certain diuretics. Always inform your doctor about every medication and supplement you are taking before the test so your results can be interpreted correctly.
For general cardiovascular risk monitoring, once every one to two years is typical for most adults. If you are receiving treatment for high cholesterol or dyslipidaemia, your doctor may recommend testing every 6 to 12 weeks initially, then moving to an annual check once your levels are stable.
No, the apolipoproteins A1 & B test cannot diagnose heart disease by itself. It is one piece of a broader assessment that includes other blood tests, your symptoms, and your medical and family history. Your doctor will use all of this information together to assess your cardiovascular risk and advise on next steps.
Apolipoproteins A1 & B Test
