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Acute High Blood Pressure: Care Instructions


Acute high blood pressure is very high blood pressure. It's a serious problem. A person's blood pressure may be 180/110 or higher. Very high blood pressure can damage your brain, heart, eyes, and kidneys.

You may have been given medicines to lower your blood pressure. You may have gotten them as pills or through a needle in one of your veins. This is called an I.V. And maybe you were given other medicines too. These can be needed when high blood pressure causes other problems.

To keep your blood pressure at a lower level, you may need to make healthy lifestyle changes. And you will probably need to take medicines.

Be sure to follow up with your doctor about your blood pressure and what you can do about it.

Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.

How can you care for yourself at home?

  • See your doctor as often as he or she recommends. This is to make sure your blood pressure is under control.
  • Take your blood pressure medicine exactly as prescribed. You may take one or more types. They include diuretics, beta-blockers, ACE inhibitors, calcium channel blockers, and angiotensin II receptor blockers. Call your doctor or nurse advice line if you think you are having a problem with your medicine.
  • If you take blood pressure medicine, talk to your doctor before you take decongestants or anti-inflammatory medicine, such as ibuprofen. These can raise blood pressure.
  • Learn how to check your blood pressure at home. Check it often.
  • Ask your doctor if it's okay to drink alcohol.
  • Talk to your doctor about lifestyle changes that can help blood pressure. These include being active and managing your weight.
  • Don't smoke. Smoking increases your risk for heart attack and stroke.

When should you call for help?

Call 911 anytime you think you may need emergency care. This may mean having symptoms that suggest that your blood pressure is causing a serious heart or blood vessel problem. Your blood pressure may be over 180/110.

For example, call 911 if:

  • You have symptoms of a heart attack. These may include:
    • Chest pain or pressure, or a strange feeling in the chest.
    • Sweating.
    • Shortness of breath.
    • Nausea or vomiting.
    • Pain, pressure, or a strange feeling in the back, neck, jaw, or upper belly or in one or both shoulders or arms.
    • Light-headedness or sudden weakness.
    • A fast or irregular heartbeat.
  • You have symptoms of a stroke. These may include:
    • Sudden numbness, tingling, weakness, or loss of movement in your face, arm, or leg, especially on only one side of your body.
    • Sudden vision changes.
    • Sudden trouble speaking.
    • Sudden confusion or trouble understanding simple statements.
    • Sudden problems with walking or balance.
    • A sudden, severe headache that is different from past headaches.
  • You have severe back or belly pain.

Do not wait until your blood pressure comes down on its own. Get help right away.

Call your doctor or nurse advice line now or seek immediate medical care if:

  • Your blood pressure is much higher than normal (such as 180/110 or higher), but you don't have symptoms.
  • You think high blood pressure is causing symptoms, such as:
    • Severe headache.
    • Blurry vision.

Watch closely for changes in your health, and be sure to contact your doctor or nurse advice line if:

  • Your blood pressure measures higher than your doctor recommends at least 2 times. That means the top number is higher or the bottom number is higher, or both.
  • You think you may be having side effects from your blood pressure medicine.

Where can you learn more?

Go to

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Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.