What Does The Test Measure
An HDL cholesterol test analyzes a sample of blood to see how much cholesterol is present within high-density lipoprotein particles. Cholesterol is a waxy substance that is important for basic cell function. Cholesterol is transported through the body in the blood within lipoproteins, which are made up of fat and protein.
There are multiple kinds of lipoproteins that can carry cholesterol including high-density lipoproteins, low-density lipoproteins , and very low-density lipoproteins .
Cholesterol in LDL and VLDL particles can build up in the arteries and cause cardiovascular problems. In contrast, HDL particles transport cholesterol to the liver so that it can be eliminated from the body. Through this and other functions, HDL cholesterol helps protect against hardening and blockages of the arteries.
In practice, virtually all HDL cholesterol tests also measure total cholesterol, which is the sum of cholesterol found in all the different kinds of lipoproteins. By subtracting HDL cholesterol from total cholesterol, the doctor can determine the amount of non-HDL cholesterol that is present. In addition, tests like a lipid panel use a mathematical formula to calculate the amount of LDL cholesterol in your blood sample.
Cholesterol Levels For Men And Women
HDL levels differ for men and women
Women naturally have higher HDL cholesterol levels than men due to differences in the genes. Women should aim for an HDL cholesterol level above 1.2mmol/L while men should aim for above 1mmol/L.
Cholesterol levels can rise during pregnancy
During pregnancy, both cholesterol and triglyceride levels can significantly rise. We don’t recommend getting a cholesterol test during pregnancy because your results won’t be accurate. Our advice is to wait until at least 6-8 weeks after your baby is born or after you stop breastfeeding to get a cholesterol test. This means you don’t need to worry unnecessarily. Find out more about pregnancy and blood fats.
Cholesterol levels rise during the menopause
Women may also find their cholesterol levels rise during the menopause.
How The Chol Hdl Ratio Test Is Done :
If your doctor wants Chol HDL ratio test on you, you may need a Chol HDL ratio blood test. During the Chol HDL ratio blood test, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Chol HDL ratio Test report by your pathologist.
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Hdl Cholesterol: ‘good’ Cholesterol
Not all cholesterol is bad. High-density lipoprotein cholesterol is considered “good” cholesterol because it actually works to keep the LDL, or “bad” cholesterol from building up in your arteries. The higher the HDL, the better. HDL levels of 60 mg/dL and higher can help reduce your risk for heart disease. Conversely, HDL levels of 40 mg/dL and lower are considered a high risk-factor for developing heart disease.
Can High Cholesterol Be Prevented Or Avoided
Making healthy food choices and exercising are two ways to reduce your risk of developing high cholesterol.
Eat fewer foods with saturated fats . Choose healthier fats. This includes lean meats, avocados, nuts, and low-fat dairy items. Avoid foods that contain trans fat . Look for foods that are rich in omega-3 fatty acids. These foods include salmon, herring, walnuts, and almonds. Some egg brands contain omega-3.
Exercise can be simple. Go for a walk. Take a yoga class. Ride your bike to work. You could even participate in a team sport. Aim to get 30 minutes of activity every day.
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Cholesterol Levels: What You Need To Know
How do we diagnose high cholesterol?
Lipoprotein panel is a type of blood test that can measure cholesterol levels. Before the test, the patient may need to fast for 9-12 hours. The test gives information about different types of cholesterol:
- otal cholesterol: It shows the total amount of cholesterol in the blood. It includes both low-density lipoprotein cholesterol and high-density lipoprotein cholesterol.
- LDL cholesterol: It transports cholesterol particles throughout the body. LDL cholesterol is often called the bad cholesterol because it builds up in the walls of the arteries, making them hard and narrow.
- HDL cholesterol: It picks up excess cholesterol and takes it back to your liver.
- Non-HDL: This number is total cholesterol minus HDL. Non-HDL includes LDL and other types of cholesterol such as very lowdensity lipoprotein .
- Triglycerides: Another form of fat in the blood that can increase your risk for heart diseases, especially in women, is triglycerides.
Understanding The Highs And Lows Of Cholesterol
You know that too much is dangerous. But what is cholesterol, anyway? Where does it come from? And is it all bad?
Cholesterol is a waxy substance that is found in every cell in the body. Its either made by the body or absorbed from food. Your body needs cholesterol to make important steroid hormones such as estrogen, progesterone and vitamin D. Its also used to make bile acids in the liver these absorb fat during digestion.
So some cholesterol is necessary but bad cholesterol is something you can do without. Excess bad cholesterol in the bloodstream can deposit into the bodys arteries. These deposits are called plaques and result in atherosclerosis, or hardening of the arteries. This is the major cause of heart attacks, strokes and other vascular problems.
Your total cholesterol level is a measure of the total amount of cholesterol circulating in your bloodstream, which includes several components:
- LDL cholesterol: LDL stands for low-density lipoprotein. This is known as the bad cholesterol, which directly contributes to plaque buildup in the arteries. Very low density lipoprotein, or VLDL cholesterol, is another type, which is a precursor to LDL.
- Total cholesterol is VLDL cholesterol plus LDL cholesterol plus HDL cholesterol.
- HDL cholesterol: HDL stands for high-density lipoprotein. Experts think at optimal levels it might help the body get rid of LDL cholesterol.
And guess what? This buildup can start as early as your 20s.
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How Can I Reduce My Ldl And Total Cholesterol Levels
Eating a low-fat, heart-healthy diet is a good start. Try not to eat fatty cuts of beef and pork. Eat more chicken, turkey and fish. Drink fatfree milk instead of whole milk. Avoid other high-fat dairy foods like cheese, butter and ice cream. Avoid fried foods. Eat lots of fresh fruits and vegetables.
What Affects My Cholesterol Levels
A variety of things can affect cholesterol levels. These are some things you can do to lower your cholesterol levels:
- Diet. Saturated fat and cholesterol in the food you eat make your blood cholesterol level rise. Saturated fat is the main problem, but cholesterol in foods also matters. Reducing the amount of saturated fat in your diet helps lower your blood cholesterol level. Foods that have high levels of saturated fats include some meats, dairy products, chocolate, baked goods, and deep-fried and processed foods.
- Weight. Being overweight is a risk factor for heart disease. It also tends to increase your cholesterol. Losing weight can help lower your LDL cholesterol, total cholesterol, and triglyceride levels. It also raises your HDL cholesterol level.
- Physical Activity. Not being physically active is a risk factor for heart disease. Regular physical activity can help lower LDL cholesterol and raise HDL cholesterol levels. It also helps you lose weight. You should try to be physically active for 30 minutes on most, if not all, days.
- Smoking.Cigarette smoking lowers your HDL cholesterol. HDL helps to remove bad cholesterol from your arteries. So a lower HDL can contribute to a higher level of bad cholesterol.
Things outside of your control that can also affect cholesterol levels include:
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How To Lower Your Cholesterol
If youve been told that you have high cholesterol or you just want to prevent it what can you do?
There are several ways to manage it, including:
Medication: Depending on your overall cardiovascular disease risk, you might be treated with a cholesterol-lowering medication, such as a statin. The decision to use a statin is based on a womans overall risk for heart attack and stroke including all these factors and the LDL cholesterol value.
If you already have vascular disease or evidence of atherosclerosis, or if you are at high risk for cardiovascular disease, a statin for prevention is strongly recommended because this treats the plaque in the arteries, and lowers LDL cholesterol, Michos says.
Diet and lifestyle:Diet and lifestyle are very important to help maintain healthy cholesterol levels. Even for women who are recommended to take cholesterol-lowering medications, a healthy lifestyle helps these drugs work better, says Michos.
Heres how to maintain a lifestyle that promotes healthy cholesterol levels:
Add these to your shopping list:
- Fatty fish such as salmon, trout, mackerel, sardines and albacore tuna
- Nuts, including walnuts, pecans, almonds and hazelnuts
- Olive oil to drizzle lightly over your salads and vegetables
While nobody wants to have high cholesterol, there are plenty of ways to keep it in check. With regular checkups and attention to what you eat, its possible to manage your cholesterol and blood fats to keep your heart healthy, says Michos.
Why Cholesterol Levels Differ In Men And Women
Healthy cholesterol levels are the same for boys and girls through childhood. But this changes when puberty hits. “Women have higher HDL cholesterol from puberty on. Boys have more testosterone, which lowers HDL,”Robert Eckel, MD, professor of medicine, emeritus, at the University of Colorado, Anschutz Medical Campus, former president of the American Heart Association and president of the American Diabetes Association, tells LIVESTRONG.com.
Essentially, after puberty, women tend to have higher levels of “good” cholesterol than men. “Theoretically, this is why women live longer and tend to have heart attacks later in life ,” Dr. Eckel says.
Pregnant women or older women taking hormone-replacement therapy to manage menopausal symptoms tend to have higher average cholesterol, Dr. Eckel says. But this increase is actually caused by HDL, which can be quite high for these groups.
“It’s important to understand that, if HDL is high, it’s distributed in a form of cholesterol that we’re not concerned about,” he says. “In fact, it may be protecting women from the risk of heart attack, stroke or death from cardiovascular disease.”
This is why understanding the difference between HDL and LDL is so important simply having high total cholesterol may not be an issue if it’s caused by elevated levels of good cholesterol.
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Why Cholesterol Affects Women Differently
In general, women have higher levels of HDL cholesterol than men because the female sex hormone estrogen seems to boost this good cholesterol. But, like so much else, everything changes at menopause. At this point, many women experience a change in their cholesterol levels total and LDL cholesterol rise and HDL cholesterol falls. This is why women who had favorable cholesterol values during their childbearing years might end up with elevated cholesterol later in life. Of course, genetics and lifestyle factors can play big roles, too.
Cholesterol Chart For Adults
Your doctor may recommend a plan of treatment for high cholesterol that includes lifestyle modifications and potentially medication. This will vary based on factors like other medications you may be taking, your age, sex, and general health.
Here are some medications more commonly prescribed for high cholesterol:
- Statins.Statins lower the LDL cholesterol levels by slowing the production of cholesterol by the liver.
- Bile acid sequestrants.Bile acid sequestrants are substances used in digestion. These resins can reduce cholesterol levels in the blood by binding to bile acids and removing them, forcing the body to break down LDL cholesterol to create bile acids instead.
- Cholesterol absorption inhibitors.Cholesterol absorption inhibitors can block the absorption of cholesterol from the diet, sometimes in conjunction with statins.
- Bempedoic acid.Bempedoic acid helps to stop an enzyme in the liver, ATP citrate lyase, from making cholesterol. This drug is often combined with statins for increased benefit for those with familial hypercholesterolemia, an inherited condition that can cause early heart disease.
- PCSK9 inhibitors. Also used frequently with familial hypercholesterolemia, PCSK9 inhibitors, which are injected drugs, help the liver absorb and remove more LDL cholesterol from the blood.
Medications can also be used to treat contributing factors to cholesterol like triglycerides. These may be used in addition to some of the medications above.
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What Are The Different Types Of Cholesterol
Cholesterol does not travel freely through the bloodstream. Instead, it is attached or carried by lipoproteins in the blood. There are three types of lipoproteins that are categorized based upon how much protein there is in relation to the amount of cholesterol.
Low-density lipoproteins contain a higher ratio of cholesterol to protein and are thought of as the bad cholesterol. Elevated levels of LDL lipoprotein increase the risk of heart disease, stroke, and peripheral artery disease, by helping form cholesterol plaque along the inside of artery walls. Over time, as plaque buildup increases, the artery narrows , and blood flow decreases. If the plaque ruptures, it can cause a blood clot to form that prevents any blood flow. This clot is the cause of a heart attack or myocardial infarction if the clot occurs in one of the coronary arteries in the heart.
High-density lipoproteins are made up of a higher level of protein and a lower level of cholesterol. These tend to be thought of as good cholesterol. The higher the HDL to LDL ratio, the better it is for the individual because such ratios can potentially be protective against heart disease, stroke, and peripheral artery disease.
Very low-density lipoproteins contain even less protein than LDL. VLDL like LDL has been associated with plaque deposits.
Triglycerides may increase cholesterol-containing plaques if levels of LDL are high and HDL is low.
When Should I Get An Hdl Cholesterol Test
Whether an HDL cholesterol test is appropriate depends on your specific circumstances.
As a screening test, there are no universally agreed-upon recommendations regarding how often to measure cholesterol levels. In general, screening is started earlier for people with risk factors such as high blood pressure, cigarette smoking, diabetes, or a family history of heart disease at an earlier age. Ongoing cholesterol testing may occur more often in people with one or more of these risk factors.
People without an elevated risk for cardiovascular problems usually start screening at a later age and often have longer intervals between cholesterol tests.
Every individual should talk with their doctor about the most appropriate screening plan in their specific situation. An overview of common recommendations for cholesterol screening are listed in the table below:
| Demographic Group | |
|---|---|
| With or without risk factors | Annually |
Screening is frequently done with a lipid panel, especially for an initial test. However, some screening may be done with only a total cholesterol and HDL-C measurement.
Although principally used to detect cardiovascular issues, abnormalities in HDL cholesterol can occur with other health problems affecting the thyroid, pancreas, or liver. As a result, cholesterol testing may be involved in the diagnostic process for a range of medical conditions.
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Questions For Your Doctor About Test Results
Talking with your doctor can provide the most detailed information about your HDL cholesterol test results. Some of the following questions may be useful in obtaining detailed explanations from your physician:
- What was my HDL cholesterol level? Is that level healthy for me?
- Were any other types of cholesterol measured? If so, what were the results of those measurements?
- Do I have risk factors for cardiovascular disease?
- Should I have another cholesterol test? If so, when?
- Are there any other tests that you recommend to evaluate my cardiovascular health?
- Do you recommend any lifestyle changes or treatments to reduce my risk of cardiovascular disease?
What About Triglycerides
Triglycerides are another common source of fat found in the bloodstream, which provide a major source of energy. If you consume more energy from foods and beverages than what you need throughout the day, this energy is converted into triglycerides by the liver and stored within fat cells, ready for use later.
If you are consistently eating more energy than you burn, over time it is likely that you will have high triglycerides.
High triglycerides can lower levels of HDL and increase heart disease risk and have been linked to atherosclerosis and inflammation of the pancreas.
The good news is that you can lower your triglycerides rapidly through dietary changes.
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How Often To Get Tested
According to the Centers for Disease Control and Prevention , most healthy adults should get their cholesterol checked every four to six years.
Your risk factors also determine how often your cholesterol should be checked. Adults who have a history of high cholesterol, heart disease, diabetes, or obesity need more frequent readings, as do all adults as they age.
Children should have their cholesterol checked at least once between the ages of 9 and 11 and again between 17 and 20 years of age. If a child has a family history of high cholesterol, heart disease, or is overweight or obese, their pediatrician may recommend getting checked sooner and more often.
How Do I Know What My Ldl Level Is
A blood test can measure your cholesterol levels, including LDL. When and how often you should get this test depends on your age, risk factors, and family history. The general recommendations are:
For people who are age 19 or younger::
- The first test should be between ages 9 to 11
- Children should have the test again every 5 years
- Some children may have this test starting at age 2 if there is a family history of high blood cholesterol, heart attack, or stroke
For people who are age 20 or older::
- Younger adults should have the test every 5 years
- Men ages 45 to 65 and women ages 55 to 65 should have it every 1 to 2 years
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