Understanding hypertension levels

A blood pressure result has an upper number, recorded when the heart contracts, and a lower number, recorded while the heart relaxes. Both matter. A single raised result can follow pain, stress, caffeine, exercise or an incorrect cuff size, so clinicians commonly repeat the measurement under calm conditions or check it at home. Hypertension is diagnosed from a pattern of readings rather than a number taken in isolation.

Persistently high pressure can strain blood vessels and organs such as the heart, brain and kidneys, even when you feel well. It can contribute to stroke, heart failure, kidney disease and angina. The reading should be interpreted alongside age, pregnancy, other conditions and medicines.

Arrange a medical review if readings remain above the range your clinician has given you. Bring a record showing the date, time, arm used, reading and any symptoms. Sit quietly with your back supported and feet on the floor before measuring; keep the arm relaxed at heart level and use a validated cuff that fits.

Take prescribed treatment exactly as directed and do not stop it because one reading improves. Regular movement, less salty processed food, avoiding tobacco and moderating alcohol can support blood pressure control. Your clinician may also review weight, sleep quality, kidney health and other medicines.

Seek emergency help for a very high reading accompanied by chest pain, severe breathlessness, confusion, fainting, new weakness or numbness, trouble speaking, or sudden vision change. These symptoms can signal a serious problem affecting the heart, brain or circulation; do not wait for a later home reading.

A high reading without warning symptoms still deserves prompt clinical advice, especially if it keeps recurring, follows a missed dose, or occurs during pregnancy.

Ask which target applies to you, how often to measure at home, whether your cuff is suitable, and when medication or testing should be adjusted. Ask how kidney health, sleep apnoea or weight may affect your plan.