Hypertensive Emergency
A hypertensive emergency is severely raised blood pressure with acute injury to the brain, heart, aorta, kidneys, eyes or pregnancy-related organs. It requires immediate hospital assessment and carefully controlled treatment.
Key takeaways
- The emergency is defined by acute organ damage, not by a blood-pressure threshold alone.
- Chest pain, neurological change, severe breathlessness, vision loss or pregnancy-related symptoms with very high pressure require emergency care.
- Lowering pressure too quickly without monitoring can reduce blood flow to vital organs and cause further harm.
This catalogue is not a treatment pathway for a hypertensive emergency. Do not delay hospital care or use listed medicines to attempt rapid pressure reduction at home.
What signs suggest organ damage?
Possible features include chest or tearing back pain, severe breathlessness, confusion, seizure, weakness on one side, sudden vision change or markedly reduced urine. During pregnancy, severe headache, visual disturbance, upper-abdominal pain or breathlessness can indicate pre-eclampsia-related complications.
What happens in hospital?
Clinicians confirm the reading, assess organ injury and select a target and rate of reduction for the specific emergency. Intravenous labetalol is one possible agent, but aortic, neurological and pregnancy emergencies have different priorities. Longer-term prevention follows stabilisation within heart and blood pressure care.
When to seek urgent care
Call emergency services now for very high blood pressure with chest or back pain, breathlessness, weakness, speech difficulty, confusion, seizure, sudden vision loss, fainting, or severe symptoms during pregnancy. Do not drive yourself.