How Often Should You Monitor Your Blood Pressure?
If you have hypertension, it’s a good idea to measure your blood pressure regularly at home. People who have medical conditions that can cause high blood pressure, such as kidney disease or diabetes, should also use a monitor to keep an eye on their numbers.
Home monitoring is also useful if you have white coat hypertension, a temporary blood pressure spike triggered by anxiety in the doctor’s office. By comparing the readings you get at the doctor with the readings you get at home, you can work out whether your blood pressure is genuinely too high.
How to pick a blood pressure monitor
Home monitors cost around $40-$100. Here’s what to look for:
Choose a model with a cuff that goes around your upper arm
Make sure the cuff is the right size for you; it shouldn’t be too tight or too loose
Pick a monitor with a clear digital display that shows a pulse readout
Pick an automated model with a self-inflating cuff
Your doctor might be able to recommend a particular brand or model. Your insurance provider may cover some of the cost. If you aren’t sure how to use your monitor, ask your doctor or nurse for a demonstration.
Some manufacturers sell devices that link up to an app you can install on your smartphone. This makes it easy to track your blood pressure over time and show the data to your doctor. If you don’t want to use an app, it’s fine to keep pen and paper records.
How often should you take your blood pressure?
If you have recently been diagnosed with hypertension, your doctor might ask you to take your blood pressure every morning and evening as they fine-tune your treatment regimen. When your blood pressure has stabilized, you won’t have to check it so often. Every week or so will probably be enough. Your doctor will tell you what to do.
How to get an accurate reading
1. Sit still for a few minutes and take a few deep breaths first.
2. Don’t take your blood pressure when you’re feeling particularly anxious or stressed.
3. Avoid tobacco, alcohol, caffeine, and food for 30 minutes before you take a measurement.
4. Keep your elbow level with your heart when using your monitor. Place your hand and arm on a table and relax your muscles. Don’t clench your hands into fists.
5. Place the cuff directly against your skin. Do not try to measure your blood pressure over your clothing. You should be able to slide two fingers between your skin and the cuff before you inflate the cuff.
6. Don’t talk or move around when taking a measurement.
7. If you get an unexpectedly high or low reading, wait a couple of minutes and repeat the process.
8. Take two measurements and note down the average, along with the time of day.
9. Always read the manufacturer’s instructions carefully before using the device for the first time.
10. You may need to get the machine serviced every couple of years. Look at the instructions for guidance.
