What should you know about sudden hypertension?

Blood pressure can rise temporarily with pain, anxiety, exertion, caffeine, nicotine, a full bladder, or an incorrect cuff size. Missed medicines, decongestants, stimulants, and some anti-inflammatory medicines can also contribute. Persistent hypertension may place strain on blood vessels, the heart, kidneys, and brain, even when a person feels well.

One reading does not establish a diagnosis. Sit quietly, support your arm at heart level, keep both feet on the floor, and repeat the reading after a short rest using a suitable cuff. Record the result, time, symptoms, and medicines taken.

Do not take an extra dose or stop prescribed blood-pressure medicine unless a clinician tells you to. Contact your healthcare team promptly if readings remain high, if you have missed doses, or if a new medicine may be involved. Bring your monitor and reading record to an appointment so the technique and device can be checked.

Longer-term review may look for contributors such as kidney disease, sleep apnoea, excess weight, or heart problems. Treatment decisions depend on repeated readings, medical history, and symptoms.

Call emergency services for chest pressure, severe shortness of breath, fainting, a severe unusual headache, confusion, seizure, new weakness or numbness, facial drooping, trouble speaking, or sudden vision loss. These symptoms can signal a stroke, heart problem, or other emergency and should not wait for a home reading to improve.

Was my measurement technique reliable? Could any medicine, supplement, pain, or sleep problem be raising my pressure? How often should I monitor it? What exact symptoms or readings should prompt emergency help?