High blood pressure (hypertension)




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Hypertensive crisis: What are the symptoms?

By Mayo Clinic staff

Original Article:  http://www.mayoclinic.com/health/hypertensive-crisis/AN00626
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  • With Mayo Clinic emeritus hypertension specialist

    Sheldon G. Sheps, M.D.

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Question

Hypertensive crisis: What are the symptoms?

What's a hypertensive crisis? If I notice a spike in my blood pressure, what should I do?

Answer

from Sheldon G. Sheps, M.D.

A hypertensive crisis is a severe increase in blood pressure that can lead to a stroke. Extremely high blood pressure — a systolic (top number) blood pressure of 180 millimeters of mercury (mm Hg) or higher or a diastolic (bottom number) blood pressure of 120 mm Hg or higher — damages blood vessels. They become inflamed and may leak fluid or blood. As a result, the heart may not be able to pump blood effectively.

Causes of a hypertensive emergency include:

  • Forgetting to take your blood pressure medication
  • Stroke
  • Heart attack
  • Heart failure
  • Kidney failure
  • Rupture of your body's main artery (aorta)
  • Interaction between medications
  • Convulsions during pregnancy (eclampsia)

A hypertensive crisis is divided into two categories: urgent and emergency. In an urgent hypertensive crisis, your blood pressure is extremely high, but your doctor doesn't suspect you have any damage to your organs. In an emergency hypertensive crisis, your blood pressure is extremely high and has caused damage to your organs. An emergency hypertensive crisis can be associated with life-threatening complications.

Signs and symptoms of a hypertensive crisis that may be life-threatening may include:

  • Severe chest pain
  • Severe headache, accompanied by confusion and blurred vision
  • Nausea and vomiting
  • Severe anxiety
  • Shortness of breath
  • Seizures
  • Unresponsiveness

If you experience a severe increase in your blood pressure, seek immediate medical attention. Treatment for hypertensive crisis may include hospitalization for treatment with oral or intravenous (IV) medications.

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References
  1. Rodriguez MA, et al. Hypertensive crisis. Cardiology in Review. 2010;18:102.
  2. Hays AJ, et al. Management of hypertensive emergencies: A drug therapy perspective for nurses. AACN Advanced Critical Care. 2010;21:5.
  3. Kaplan NM, et al. Treatment of specific hypertensive emergencies. http://www.uptodate.com/home/index.html. Accessed May 10, 2011.
  4. Bakris GL. Management of severe asymptomatic hypertension (hypertensive urgencies). http://www.uptodate.com/home/index.html. Accessed May 10, 2011.
  5. Chobanian AV, et al. The seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. New England Journal of Medicine. 2003;289:2560.
AN00626 Aug. 25, 2011

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