What is postural hypotension?
Postural hypotension, also known as orthostatic hypotension, is a sudden drop in blood pressure of 20 mmHg systolic or 10 mmHg diastolic within 3 minutes of standing up from sitting or lying down. This can make you feel dizzy, lightheaded, or even faint.
Many things can cause postural hypotension
Here are some of the most common:
- Dehydration: Not drinking enough fluids can lower your blood
- Medications: Some medications can affect your blood
- Heart problems: Certain heart conditions can interfere with blood pressure
- Nervous system disorders: Conditions like Parkinson’s disease can affect the nervous system’s control of blood pressure.
- Prolonged bed rest: Being inactive for a long time can weaken your body’s ability to adjust to changes in
- Ageing: As you get older, your body’s reflexes may slow
The most common symptoms include:
- Dizziness or light headedness
- Blurry vision
- Weakness
- Fatigue
- Nausea
- Fainting
How to reduce or manage symptoms
- Avoid sitting or standing for prolonged periods of time.
- Avoid extremely hot showers and
- Avoid alcohol.
- Eat little and often and avoid large
- Ensure you are drinking adequate amounts of fluid. Your doctor or nurse can educate you further on fluid intake.
How to help your body adjust to change in position and reduce risk of fall during mobility
Prepare your environment
Ensure the area around you is clear of obstacles and keep your walking aid within reach.
Position your body
From a lying or reclining position, first move into a seated position Allow your feet to dangle off the bed or place them flat on the floor if seated in a chair.
Pause and adjust
Sit on the edge of the bed or chair for about 15 to 30 seconds. Take slow, deep breaths to stabilise your circulation.
Stand up slowly
Lean slightly forward. Push yourself up using your legs and hands at the same time. Avoid using only your upper body strength.
Pause again after standing
Once you are standing, remain still for a few seconds to ensure you feel steady. Hold onto a stable surface or assistive device if needed.
Begin moving when ready
When you feel balanced, start walking slowly. Sit back if dizzy. Use any prescribed walking aids. If symptoms do not stop, speak to your doctor.
For further information, please refer to the NHS websites: https://www.nhs.uk/conditions/low-blood-pressure-hypotension/