Is High Blood Pressure an Emergency?

Author: Dr. Vrolijk   |   Updated: August 23, 2025   |   Disclaimer   |   Review Process   |   References

Author: Dr. Vrolijk   

Updated: August 23, 2025   

Disclaimer   |   Review Process   |   References

High blood pressure can feel scary, especially when you’re not sure if you need emergency care. You want to stay safe, but you also don’t want to overreact.

This page explains when high blood pressure is an emergency and what to expect if you go to the emergency room.

On This Page:

Woman touching her jaw with a concerned expression, illustrating the uncertainty people feel when deciding if high blood pressure needs emergency care

Emergency vs. Urgent

It's About Symptoms, Not Just Numbers

The Role of High Blood Pressure in Emergencies

  • High blood pressure makes health emergencies more likely (like stroke)
  • Medical emergencies can cause blood pressure to be high all of a sudden

High Blood Pressure Is an Emergency When

  • An organ (like your brain or heart) is being hurt by your high blood pressure
  • A medical emergency (like bleeding in your brain) is causing high blood pressure 
Illustration of a high-pressure washer breaking through a brick wall, representing how high blood pressure damages artery walls over time

High blood pressure (hypertension) is like a pressure washer against a brick wall. Your arteries are the wall.

  • Over time the pressure washer weakens the wall 
  • When the water pressure gets really high, the wall is more likely to fall apart
  • If the wall falls apart, everything behind it (your body) will get damaged
Illustration of a gentle garden hose spray against an intact brick wall, representing normal blood pressure that keeps arteries safe
Illustration of a high-pressure washer breaking through a brick wall, representing how high blood pressure damages artery walls over time

Normal blood pressure is like a regular hose against a brick wall. Your arteries are the wall.

  • There is no damage to the wall
  • The wall is less likely to fall apart even if it’s weak
  • Everything behind the wall (your body) is protected
Illustration of a gentle garden hose spray against an intact brick wall, representing normal blood pressure that keeps arteries safe

This Is Why High Blood Pressure Makes Medical Emergencies More Likely

What Happens in the Emergency Room?

The Medical Team Will Check for Life Threatening Problems

  • They’ll ask questions about how you feel
  • They’ll check your blood pressure again to confirm it’s still high

The Emergency Room (ER) Team Will Follow These Steps:

  1. Check if your high blood pressure has damaged your body
  2. Treat any emergent problems (like stroke or heart attack)
  3. Send you home if it’s safe (no evidence of damage needing immediate treatment)
  4. Admit you to the hospital if you need treatment right away

If You Have No Symptoms

  • You may get a blood test to check if your kidneys are damaged (called creatinine)
  • The ER team may or may not give you medicine right away, depending on:
    • Whether you have a regular doctor for follow-up
    • How long your blood pressure has been high
    • Your other health conditions
    • How high your blood pressure numbers are

If You Have Symptoms

Your care will be different if you have symptoms. This is because the symptoms might mean a part of your body is injured.

Symptoms That Are Concerning

  • New chest pain
  • Trouble breathing
  • Confusion or feeling “out of it”
  • Trouble walking or moving
  • Trouble seeing
  • Signs of kidney problems (on labs)

What happens next in the ER:

  • Assessment – The medical team will assess your symptoms
  • Testing – They’ll run tests to determine if you have a medical emergency
  • Treatment plan – Your treatment will depend on your specific symptoms and what the tests show
  • Next steps – Once you’re stable, they’ll decide the safest plan for you

Quick Answers

At what blood pressure should you go to the hospital?

Call your doctor:
Either number is 180/110 or higher AND you feel normal

Go to the hospital right away if you have any of these symptoms:

  • Feel confused, such as:
    • Trouble understanding what is happening around you
    • Have a harder time than usual making simple choices
  • Have trouble moving:
    • It’s harder to walk than usual
    • It’s harder to use your hands or arms than usual
  • Lose feeling in part of your body
  • Have trouble talking or breathing
  • Have new chest or back pain
  • Your pee (urine) is brown or red
  • Your vision changes quickly
How high can blood pressure go before a stroke?

High blood pressure makes a stroke more likely over time. That’s why it’s important to keep blood pressure low over time. A stroke can happen even when blood pressure isn’t very high right now.

There is no blood pressure that will cause a stroke. So, you should focus on how you feel.

How would I know if I'm having a stroke?

Remember F-A-S-T: Face drooping, Arm weakness, Speech difficulty, Time to call 911. Also watch for sudden feeling imbalanced or vision loss. These need immediate emergency care.

What if my reading was high but now it's normal?

It’s a good idea to still talk to your doctor. Together you can figure out if there’s a pattern. You should keep checking your blood pressure 1-2 times a day. Write down your readings and how you feel.

Should I go to the ER if my blood pressure is 190/110?

Only if you have concerning symptoms (see the first question’s answer for a list). If you feel normal, you should call your doctor.

When should I call 911 for blood pressure?

You don’t need to call 911 just for high blood pressure. You should call if you have concerning symptoms and need immediate help. 

How long can you have high blood pressure before it causes damage?

Damage usually happens over months to years. But how much damage and how long that takes depends on your body. Some people are more susceptible to high blood pressure and are more likely to have problems.

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