How to read your blood pressure measurements?

Hypertension, also known as high blood pressure, requires regular blood pressure checks. If you have hypertension, you need to know the best time to test your blood pressure.
The most appropriate time to get your blood pressure checked depends on a few factors. These include your daily routine, schedule, convenience, the time of the day, and whether you're doing the test at home or at your healthcare professional's office.
Your blood pressure keeps changing throughout the day. It follows the circadian rhythmic cycle, so your blood pressure is at its peak in the morning. However, it declines during the nighttime when you're resting.
Blood pressure measurements include two types of numbers. The top one is the systolic number, and the bottom is the diastolic number. The sphygmomanometer measures blood pressure in millimeters of mercury (mm Hg).
If your device says 120/80 mm Hg blood pressure, this means "120 over 80".
The blood pressure readings are divided into five categories. These include:
- Normal: The standard blood pressure means less than 120 mm Hg systolic and 80 mm Hg diastolic (120/80 mm Hg).
- Elevated: Your blood pressure will be considered elevated if it continuously ranges between 120 to 129 mm Hg systolic and less than 80 mm Hg diastolic readings.
- High Blood Pressure (Stage 1): The first stage of your increased blood pressure starts from 130 to 139 mm Hg systolic or 80 to 89 mm Hg diastolic.
- High Blood Pressure Stage 2: The second stage of your increased blood pressure starts at 140 mm Hg systolic or 90 mm Hg diastolic or higher.
- Hypertensive Crisis: This is a serious situation that requires immediate medical care. If your blood pressure reading consistently measures higher than 180/120 mm Hg, you're in a hypertensive crisis. You may feel several symptoms at this stage, like chest pain, difficulty breathing and speaking, back pain, weakness, or blurry vision.
Getting blood pressure checked at a healthcare provider's office
Many people visit a healthcare provider to get their blood pressure measured regularly. These visits are usually scheduled at different times since your blood pressure keeps changing the entire day.
Checking blood pressure at different times gives your healthcare provider multiple readings. They can monitor your health in various aspects with the help of these measurements, according to the standard blood pressure guidelines. Finally, they conclude all the readings in one report.
Checking blood pressure at home
Home blood pressure monitoring is an inexpensive, convenient, and pretty simple process. It is often considered more accurate than testing at a healthcare provider's office.
There are several advantages associated with home blood pressure checkups, such as:
- Similar Blood Pressure Measurements: A study found that home blood pressure monitoring gives similar blood pressure measurements as a 24-hour ambulatory monitor. These monitors are considered the gold standard to detect the chances of the person having any heart disease.
- Eliminates White Coat Effect: Home blood pressure measurements can prevent the chances of the white coat effect. It refers to the situation when your blood pressure rises with the thought of visiting your healthcare provider's office.
- Identifies Masked Hypertension: Home blood pressure checks also help identify low blood pressure and masked hypertension. It's common when your blood pressure is stable at your healthcare provider's office but suddenly gets higher as you reach home.
- Monitor Changes: Your doctor may recommend you to do home blood pressure tests to see if a blood-pressure regulating drug is working on you or not. They may also want to watch out for any changes in your blood levels when you alter your diet.
It's important to realize that home blood pressure monitoring isn't a complete substitute for in-office checkups. Your healthcare provider may use both of these readings to understand your situation better. Keep visiting your doctor for regular in-office checkups along with doing at-home blood pressure tests.

QUESTION
Salt and sodium are the same. See AnswerHow to self-monitor your blood pressure
Self-monitoring your blood pressure at home differs from asking your healthcare provider to perform it. If you're performing a home blood pressure checkup at home, don't forget to follow these tips to increase your chances of getting accurate results:
Measure your blood pressure at least twice a day
It's normal for your blood pressure to rise or drop at certain times of the day. It is typically high when you wake up and is expected to change by up to 30% throughout the day as you start performing different activities. Many factors affect your blood pressure, including hormonal changes, diet, and activity levels.
Take readings at the same time daily
Measuring your blood pressure at the same time for a few days should give you the same reading daily. One exception is your workout sessions. There is a chance that your blood pressure checkup routine may take two to three checks in the night and morning.
Take multiple readings on every check
If you're taking multiple readings, ensure to measure each with a minute gap. To keep your readings saved, record them in a notebook or an online tracker.
Prepare yourself before recording a measurement
It's recommended not to smoke, exercise, consume caffeine, or eat heavy meals 30 minutes before taking a reading.
These factors can affect your final measurements. You must also empty your bladder and rest for a few minutes before monitoring your blood pressure at home.
Choose a convenient time
If you have a busy schedule, try to adjust your blood pressure checks within it according to your convenience.
Choose a time that doesn't interrupt your work or conflicts, as these factors may affect your blood pressure. It's better to check your blood pressure before or after coming from the office.
Do the test while sitting
Taking blood pressure measurements while standing up may give you inaccurate or higher readings. Always sit in a comfortable chair or couch that supports your back while doing the blood pressure checkup at home. You should also place your arm and feet on flat surfaces for more accurate readings.
If you're not sure about the best time to take blood pressure at home, you can talk to your doctor to have detailed guidance. Taking blood pressure measurements each day helps your healthcare provider see if their prescribed treatment is working or not.
Health News
- Opdivo Could Boost Outcomes for People Battling Hodgkin Lymphoma
- More U.S. Kids, Teens Are Getting Weight-Loss Surgeries
- Could a Nitroglycerin Patch Ease Hot Flashes?
- One Form of Menopause Hormone Therapy Might Raise Blood Pressure
- Targeted Drug May Lower Odds for Breast Cancer's Return in Some Patients
More Health News »
Health Solutions From Our Sponsors
American Heart Association: "Understanding Blood Pressure Readings."
European Cardiology Review: "Home Blood Pressure Monitoring."
Frontiers in Physiology: "Circadian Rhythm of Blood Pressure of Dipper and Non-dipper Patients With Essential Hypertension: A Mathematical Modeling Approach."
Harvard Health Publishing: "Tips to measure your blood pressure correctly."
Mayo Clinic: "Is white coat hypertension a long-term problem?"
Top Best Time to Measure Your Blood Pressure Related Articles
Blood Pressure Readings: Chart, Normal, High, Low
Blood pressure is the force applied by the blood over the inner walls of the arteries. Although the average blood pressure for a person remains constant, it shows minor fluctuations throughout the day—declining while relaxing and momentarily increasing while being excited or under stress. An increase in resting blood pressure can scar, stiffen, or harden the arteries.What Are Normal Blood Pressure Ranges by Age For Men and Women?
What is normal, low and high blood pressure? Find charts of blood pressure readings and ranges for men and women of different ages. Discover what causes high and low blood pressure and how to prevent it.Can High Blood Pressure (HBP) Cause Blood in Urine?
Blood in your urine is also known as hematuria. Very rarely, it is caused by high blood pressure (HBP) — also known as hypertension.How Can I Lower My Blood Pressure Immediately, Naturally? Chart
Can you lower your high blood pressure immediately? Explore 9 ways such as exercise, healthy eating, rest, and more that can help protect your arteries from blood pressure changes as you age. See chart and learn to manage and control hypertension the healthy and natural way.What Foods Can I Eat to Lower My Blood Pressure Immediately?
What is high blood pressure and how can you lower it? Learn the best foods to help lower your blood pressure immediately.High Blood Pressure (Hypertension)
High blood pressure (hypertension) is a disease in which pressure within the arteries of the body is elevated. About 75 million people in the US have hypertension (1 in 3 adults), and only half of them are able to manage it. Many people do not know that they have high blood pressure because it often has no has no warning signs or symptoms.
Systolic and diastolic are the two readings in which blood pressure is measured. The American College of Cardiology released new guidelines for high blood pressure in 2017. The guidelines now state that blood normal blood pressure is 120/80 mmHg. If either one of those numbers is higher, you have high blood pressure.
The American Academy of Cardiology defines high blood pressure slightly differently. The AAC considers 130/80 mm Hg. or greater (either number) stage 1 hypertension. Stage 2 hypertension is considered 140/90 mm Hg. or greater.
If you have high blood pressure you are at risk of developing life threatening diseases like stroke and heart attack.
REFERENCE: CDC. High Blood Pressure. Updated: Nov 13, 2017.
High Blood Pressure & Body
High blood pressure puts you at risk for a number of other conditions. Here's what to look out for.What Is High Blood Pressure (Hypertension)? Symptoms, Treatments
What causes high blood pressure (hypertension)? What is normal blood pressure? Know the warning signs and symptoms of high blood pressure. Read about high blood pressure medications, diet, and long-term treatments.HBP Quiz
Take this quiz and test your IQ of high blood pressure (hypertension), the cardiovascular disease that causes most strokes and heart attacks. How are dizziness, snoring, and gout related to HBP? Find the answer and learn how medical treatments and lifestyle adjustments fight this common problem.Things to Know About High Blood Pressure Treatment
High blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include lifestyle modifications (alcohol, smoking, coffee, salt, diet, exercise), drugs and medications such as ACE inhibitors, angiotensin receptor blockers, beta blockers, diuretics, calcium channel blockers (CCBs), alpha blockers, clonidine, minoxidil, and Exforge.How Can I Lower My Blood Pressure in Minutes?
Learn how to lower your high blood pressure quickly and how to better manage this condition.How Do I Know If I Have High or Low Blood Pressure Numbers?
High or low blood pressure can lead to serious health conditions. Learn more about what you should do if your pressure is outside the ideal range.How to Lower My Blood Pressure Immediately
If you face any complications of high blood pressure such as a stroke or heart attack, contact your physician without any delay. Do not attempt home remedies in such grave situations. If you have high blood pressure, without any complications, the first thing to do is to calm down and lie flat.What Is the Blood Pressure of a Very Fit Person?
Studies show that a very fit person who exercises regularly will have a lower resting blood pressure (usually below 120/80 mm Hg) than someone who leads a sedentary lifestyle.Which Blood Pressure Number Is the Most Important?
The blood that flows through the arteries (blood vessels carrying blood from the heart to other parts of the body) exerts pressure against the arterial walls. The number above (120) is called the systolic blood pressure and the number below (80) is called the diastolic blood pressure. Though both readings are important, many doctors believe that systolic blood pressure is a better predictor of complications of hypertension, such as heart disease or stroke.