Hypertension and hypertensive emergency

Global core

Severe hypertension with acute damage to the brain, heart, aorta, or kidney is an emergency. The same number in a person who is otherwise well is not a reason to force a normal pressure within minutes. How a system names stage 1, and the clinic target it publishes, are local. Pregnancy is a separate pathway.

What stays the same

• Acute organ damage changes the urgency. The number alone does not.
• One rushed clinic reading is not a lifelong diagnosis.
• Pregnancy is a different pathway.
• Do not force a normal blood pressure in the next few minutes.

1. Recognize. A very high reading, headache, chest pain, breathlessness, weakness, or visual change.
2. Reason. Look for acute organ damage. A single clinic reading can be white-coat effect.
3. Prioritize. Encephalopathy, pulmonary edema, chest pain, and a suspected aortic syndrome outrank a routine label.
4. Act safely. Monitor and lower a true emergency in a controlled way. Confirm a high reading before lifelong treatment. Use the cut-points of the system you are in.

Local adaptation

• United Kingdom

  NICE NG136, on the recommendations page updated 26 February 2026, uses a clinic blood pressure of 140/90 mmHg or higher as the point to repeat the reading. Between 140/90 and 180/120 mmHg it offers ambulatory monitoring, or home monitoring if ambulatory monitoring is unsuitable. Hypertension is confirmed when the clinic pressure is 140/90 mmHg or higher and the daytime ambulatory or home average is 135/85 mmHg or higher. Stage 1 is a clinic pressure from 140/90 to 159/99 mmHg with an out-of-office average from 135/85 to 149/94 mmHg. For adults under 80 the clinic target is below 140/90 mmHg.

  NICE. Hypertension in adults: diagnosis and management (NG136), recommendations (2026). Accessed 2026-09-29.

• United States

  The AHA summary of the 2025 high blood pressure guideline classifies stage 1 hypertension as 130 to 139 mm Hg systolic or 80 to 89 mm Hg diastolic, and stage 2 as 140 mm Hg or higher systolic or 90 mm Hg or higher diastolic. It states an overarching treatment goal below 130/80 mm Hg for adults, with additional considerations for people who need institutional care, have a limited predicted lifespan, or are pregnant. This summary retires the 2017 guideline as the document it is describing.

  AHA/ACC. 2025 High Blood Pressure Guideline: top things to know (2025). Accessed 2026-09-29.

Exam lens

Emergency versus a high number without organ damage. The next place of care, not a memorized stage name.