Sudden High Blood Pressure: A Medical Emergency

A hypertensive crisis — a sudden, severe spike in blood pressure, generally systolic above 180 and/or diastolic above 120 — is a distinct situation from the gradual, usually symptomless high blood pressure most people live with.

Hypertensive Urgency vs. Emergency

• Hypertensive urgency: severely elevated blood pressure without signs of organ damage. This still needs prompt medical attention, typically within hours, though not always via emergency room.
• Hypertensive emergency: severely elevated blood pressure WITH signs of organ damage — this requires immediate emergency treatment.

Warning Signs of a Hypertensive Emergency

• Severe headache
• Chest pain
• Shortness of breath
• Vision changes
• Confusion or difficulty speaking
• Numbness or weakness, especially on one side of the body
• Severe anxiety or a sense that something is seriously wrong

What to Do

If you or someone else has a very high blood pressure reading along with any of these symptoms, seek emergency medical care immediately — call emergency services rather than driving yourself. If a high reading occurs without these symptoms, retake the reading after a few minutes to confirm it, then contact a doctor promptly rather than panicking — but this still needs medical follow-up rather than being ignored.