Underst和ing Blood Pressure Readings

What do your blood pressure numbers mean?

高血压, also known as hypertension, can lead to serious health problems including heart attack or stroke. Measuring your blood pressure is the only way to know if you have it. Controlling 高血压 can help prevent major health problems.

Healthy 和 unhealthy blood pressure ranges 

血压类别 SYSTOLIC mm Hg (upper number) 和/或 DIASTOLIC mm Hg (lower number)
正常的 小于120 少于80
升高 120 – 129 少于80
高血压危象 (consult your doctor immediately) 大于180 和/或 大于120

Note: Only a doctor or other medical professional can confirm a 高血压 diagnosis. They also can check if your blood pressure is 过低.


Controlling blood pressure

如果你的血压 in the 正常范围内, stick with heart-healthy habits such as following a balanced diet 和 getting regular exercise.

如果你的血压 升高, work with your health care professional to control the condition.

In 1期高血压, your health care professional is likely to prescribe lifestyle changes. They may consider adding medication based on your risk of heart disease or stroke 和 should add medication if you have other conditions such as diabetes, heart failure 和 kidney disease.

In 高血压2期, your health care professional should prescribe blood pressure medication 和 lifestyle changes.

In 高血压危象, you need medical attention.

  • Wait five minutes after your first reading.
  • Take your blood pressure again.

If your readings are still unusually high, contact your health care professional immediately.

拨打911 if your blood pressure is higher than 180/120 和 you are having:

  • 胸部疼痛
  • 呼吸急促(气促)
  • 背部疼痛
  • 麻木
  • 弱点
  • 视力的改变
  • 说话困难  

Your blood pressure numbers 和 what they mean

Your blood pressure is recorded as two numbers:

  • 收缩压 是第一个数字吗?. It measures the pressure your blood is pushing against your artery walls when the heart beats.
  • 舒张压 是第二个数字吗?. It measures the pressure your blood is pushing against your artery walls while the heart muscle rests between beats.

Which number is more important?

A higher systolic or diastolic reading may be used to diagnose 高血压. But the systolic blood pressure tells more about risk factors for heart disease for people over 50. As people get older, their systolic blood pressure usually goes up because:

  • Large arteries become stiffer
  • There is more plaque buildup over time
  • Higher rates of heart 和 blood vessel diseases

阅读更多关于 高血压.