What Do My Blood Pressure and Cholesterol Numbers Mean?
Your blood pressure has two numbers showing the force of blood against your artery walls. Your cholesterol panel measures different fats in your blood. Doctors use both sets of numbers together to estimate your risk of future heart disease or stroke. Normal blood pressure is under 120/80, while cholesterol targets vary based on your personal health history.
- Normal blood pressure is defined as less than 120 systolic and less than 80 diastolic.
- A standard cholesterol test measures total cholesterol, LDL, HDL, and triglycerides.
- Your doctor uses your numbers to calculate your overall cardiovascular risk.
- Decisions about lifestyle changes or medications are based on your total health picture, not just one number.
Understanding Your Blood Pressure Numbers
Blood pressure is the force your blood exerts against the walls of your arteries as your heart pumps. A blood pressure reading always has two numbers. The first number is systolic blood pressure. It measures the pressure in your arteries when your heart beats. The second number is diastolic blood pressure. It measures the pressure in your arteries when your heart rests between beats.
Both numbers are important. They are measured in millimeters of mercury (mm Hg). If your reading is 118/75, your doctor will say "118 over 75." Consistently high pressure forces your heart to work harder. Over time, this extra force damages your blood vessels and organs. This damage increases your risk of heart attack, stroke, and kidney disease.
Blood Pressure Categories
Major medical organizations like the American College of Cardiology and the American Heart Association define adult blood pressure categories. Your category determines what steps you might need to take.
Normal blood pressure is less than 120 systolic and less than 80 diastolic. Elevated blood pressure means your systolic number is between 120 and 129, and your diastolic is less than 80. People with elevated blood pressure are likely to develop high blood pressure unless they take steps to control it.
High blood pressure is called hypertension. Stage 1 hypertension is a systolic reading of 130 to 139 or a diastolic reading of 80 to 89. Stage 2 hypertension is a systolic reading of 140 or higher, or a diastolic reading of 90 or higher. A hypertensive crisis occurs if your blood pressure is higher than 180/120. If you have a reading this high, you need immediate medical attention.
How to Measure Blood Pressure at Home
Home monitoring helps your doctor see what your blood pressure is like during your normal routine. A single reading in the office might not reflect your true average. To get accurate numbers at home, preparation matters.
Use a validated monitor that goes around your upper arm, not your wrist. Rest quietly for five minutes before taking a reading. Sit in a chair with your back supported and both feet flat on the floor. Keep your arm supported at chest level.
Take two or three readings at a time, spaced one minute apart. Write down all the numbers or save them in the device memory. Bring this record to your next appointment.
- Do not drink caffeine, smoke, or exercise for 30 minutes before measuring.
- Empty your bladder before taking a reading.
- Do not talk while the machine is running.
Making Sense of Your Cholesterol Panel
A cholesterol test is called a lipid panel. It measures the amount of cholesterol and triglycerides in your blood. Cholesterol is a waxy substance your body needs to build cells. Your liver makes all the cholesterol you need. You also get cholesterol from animal products in your diet.
Too much cholesterol can combine with other substances in your blood to form plaque. Plaque sticks to the walls of your arteries. This buildup narrows your arteries and makes them less flexible. A lipid panel breaks your blood fats down into several categories.
LDL (low-density lipoprotein) is often called the "bad" cholesterol. High levels of LDL lead to plaque buildup in your arteries. HDL (high-density lipoprotein) is called the "good" cholesterol. It carries cholesterol back to your liver, where it is flushed from your body. Higher HDL levels are generally better.
Triglycerides are the most common type of fat in your body. They store excess energy from your diet. High triglycerides combined with high LDL or low HDL increase your risk of heart problems. Your report will also show total cholesterol and non-HDL cholesterol. Non-HDL cholesterol is your total cholesterol minus your HDL. It represents all the "bad" types of cholesterol in your blood.
Cholesterol Targets and Overall Risk
There is no single "normal" cholesterol number that applies to everyone. Your doctor does not treat a number in isolation. Instead, they look at your entire risk profile.
To decide if your cholesterol is a problem, doctors use risk calculators. These calculators estimate your chance of having a heart attack or stroke in the next 10 years. The calculation includes your age, sex, race, blood pressure, cholesterol levels, smoking history, and whether you have diabetes.
If your overall risk is low, your LDL target will be different than someone who has already had a heart attack. People with a history of heart disease, stroke, or diabetes usually need to keep their LDL cholesterol very low. Your doctor will explain what your specific numbers mean for you.
Managing Your Cardiovascular Health
High blood pressure and high cholesterol usually have no symptoms. The only way to know if you have a problem is to get tested. If your numbers are outside the healthy range, the first step is often modifying your daily habits.
Dietary changes, regular physical activity, quitting smoking, and managing your weight all have a powerful effect on your cardiovascular system. For some people, lifestyle changes are enough. For others, genetics play a large role. In these cases, medication is often necessary to reach a safe target.
At Éblouissant, Dr. Pandey reviews your blood pressure and cholesterol numbers during your annual physical. We offer primary care services, including preventive screenings and cardiovascular management, at our Greenwich Village office. Decisions about starting medication for blood pressure or cholesterol are made together, based on your complete medical history and overall risk.
Common questions
Why is my blood pressure higher at the doctor's office?
Many people experience "white coat hypertension." This happens when stress or anxiety about being in a medical setting causes your blood pressure to temporarily rise. Your doctor may ask you to monitor your blood pressure at home to see if your numbers are lower in a relaxed environment.
Do I need to fast before a cholesterol test?
You do not always need to fast before a standard lipid panel. Many doctors now check non-fasting cholesterol because it is more convenient and still provides useful information about your risk. However, if your triglycerides are very high, or if you have specific medical conditions, your doctor might ask you to fast for 9 to 12 hours before a follow-up test.
Can I stop taking my blood pressure medication if my numbers are normal?
You should never stop taking your medication without talking to your doctor. If your numbers are normal, it usually means the medication is working. Stopping suddenly can cause your blood pressure to spike dangerously.
How often should I get my blood pressure and cholesterol checked?
Adults should have their blood pressure checked at least once a year. Healthy adults should get a cholesterol test every four to six years. If you have cardiovascular disease, diabetes, or a family history of high cholesterol, you will likely need testing more often.
Related reading
This article is general information, not medical advice, and does not create a doctor-patient relationship. Individual results vary. If you have a medical emergency, call 911. Medical disclaimer