The phone rings, and your stomach drops before you even answer. Another fall. Maybe it was in the bathroom, or getting up from the recliner, or first thing in the morning on the way to the kitchen. Everyone has an explanation ready: it's age, it's the disease progressing, it's balance. And maybe it is.
But sometimes there's something underneath the falls that nobody has checked for, and it's surprisingly simple to look for. When some people stand up, their blood pressure drops sharply for a few seconds or minutes. Not enough to show up at a seated doctor's visit. Just enough to make the room tilt, their legs give, or their vision go gray at exactly the wrong moment.
It has a name: orthostatic hypotension. It's common in older adults and in people with conditions like Parkinson's, and it's easy to miss. Here's what it is, what to watch for, how to check for it at home with an ordinary blood pressure cuff, and what to bring to your loved one's doctor.
Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider regarding your loved one's medications and health needs.
"Orthostatic" means standing upright, and "hypotension" means low blood pressure. Put together, it describes blood pressure that falls too far when someone stands up.
When any of us stands, gravity pulls blood down toward the legs and belly. Normally the body corrects for this within seconds: blood vessels tighten and the heart speeds up a little, so the brain keeps getting enough blood. When that correction is slow or weak, blood pressure drops, and the brain is briefly short on blood flow.
Doctors use a specific definition: a drop of at least 20 points in the top number (systolic) or at least 10 points in the bottom number (diastolic) within 3 minutes of standing, compared with a reading taken lying down or sitting.
It's more common than most families realize. Roughly 1 in 5 adults over 60 living at home has it, and it's even more common in assisted living and nursing homes.
The classic signs show up within seconds to a few minutes of standing, and usually ease when the person sits or lies back down:
• Lightheadedness or dizziness • Blurred, dimmed, or "graying out" vision • Sudden weakness or wobbly legs • Feeling foggy, confused, or slow to respond • Headache, nausea, or feeling tired out of nowhere • An ache across the neck and shoulders • Falls, near-falls, or fainting
Symptoms are often worse first thing in the morning, after a big meal, in hot weather, after a hot shower, or after exercise.
Here's the hard part: about a third of people with orthostatic hypotension don't have obvious symptoms at all. And many of our loved ones can't easily describe what they're feeling, especially if speech or memory is affected. They may just say they "got tangled up" or "lost their footing." Sometimes a fall is the first sign anyone notices.
Most blood pressure checks happen with someone sitting quietly in an exam room. If the drop only happens on standing, that reading can look completely normal, sometimes even high.
Falls also come with built-in explanations. In someone with Parkinson's, dementia, arthritis, or just advancing age, it's natural for everyone, doctors included, to assume a fall is part of the condition. Those explanations are sometimes right. But they can stop anyone from looking further.
And the drop isn't constant. It can be worse at certain times of day, after meals, or a few hours after certain medications. A single reading on a single afternoon may not catch it. A pattern of paired readings, sitting or lying down and then standing, is what shows it.
There's often more than one thing contributing. Common causes include:
Dehydration. Older adults often feel less thirsty and may cut back on fluids, especially if getting to the bathroom is hard. Less fluid in the body means less blood volume to work with.
Medications. Blood pressure medications, diuretics (water pills), alpha-blockers (including some prostate medications), nitrates, some antidepressants and antipsychotics, and Parkinson's medications can all play a role. Several blood-pressure-lowering medications taken together can add up, even when each one seems reasonable on its own.
Conditions that affect the nervous system. The body's automatic blood pressure correction is run by the autonomic nervous system. Parkinson's disease, Lewy body dementia, multiple system atrophy, and nerve damage from diabetes can all weaken it.
Other factors. Long periods in bed, losing strength and conditioning, large meals, alcohol, heat, anemia, and heart conditions can all make it worse.
One important note: never stop or change a medication on your own because of a blood pressure drop. Some medications are dangerous to stop suddenly. Bring what you've noticed to the prescribing doctor and let them make the change.
If your loved one has Parkinson's, this topic deserves extra attention. Parkinson's affects the autonomic nervous system, and many people with Parkinson's have lower levels of norepinephrine, one of the chemicals that tightens blood vessels when we stand. The result can be blood pressure that doesn't bounce back after standing the way it should.
Parkinson's medications can add to the drop, too. That doesn't mean they're the wrong medications. It means timing, doses, and the full medication list are worth reviewing with the neurologist when falls or dizziness show up.
There's also a twist doctors watch for: some people with this kind of drop have high blood pressure when lying down, and treatments that raise standing blood pressure can push lying-down pressure higher. That's one more reason readings in different positions are valuable to bring to appointments, and one more reason treatment decisions belong with the doctor.
You don't need special equipment, just an automatic upper-arm blood pressure cuff and a few minutes. Have a second person nearby if you can, and make sure there's a chair or bed right behind your loved one in case they get dizzy.
1. Have your loved one lie down quietly for 5 minutes. If lying down isn't practical, they can sit, but write down which position you used. 2. Take a blood pressure reading. Write down both numbers and the pulse. 3. Have them stand up, with you right beside them. 4. Take another reading after about 1 minute of standing. 5. Take one more after about 3 minutes of standing. 6. If they feel dizzy, weak, or unwell at any point, stop and have them sit or lie down right away.
Then compare. A drop of 20 or more in the top number, or 10 or more in the bottom number, is worth calling the doctor about, even if the standing reading looks "normal" on its own. Write down the pulse each time too. How much the heart rate rises (or doesn't) helps the doctor figure out the cause.
For the most useful picture, repeat the check at different times over a week or two, especially in the morning, after meals, and around medication times. Keep the arm supported at heart level for each reading, and use the same arm every time.
Talk with your loved one's doctor before making changes, since some of these aren't right for everyone, especially people with heart failure or kidney disease. These are the strategies doctors commonly suggest:
Stand up in stages. Lying down to sitting on the edge of the bed, pause for a minute, then stand. Pumping the ankles or marching the feet a few times before standing can help.
Stay hydrated. Ask the doctor for a daily fluid target. Drinking a glass or two of water before getting up in the morning or before standing for a while can help some people.
Go easy on big meals and alcohol. Smaller, more frequent meals cause less of a drop afterward. Limit alcohol, which lowers blood pressure further.
Avoid overheating. Very hot showers and baths, hot tubs, and midday heat make drops worse. A shower chair is a simple, worthwhile fix.
Ask about compression. Waist-high compression stockings or an abdominal binder help some people. Ask the doctor which type, if any, fits your loved one.
Ask before adding salt. Extra salt helps some people and is harmful for others. This one is strictly the doctor's call.
Make "sit down now" the rule. If your loved one feels dizzy or faint, they should sit down immediately, even on the floor. A controlled sit is far better than a fall.
Make the home forgiving. Night lights between the bed and bathroom, grab bars, a chair in the bathroom and the kitchen, and clear walking paths all reduce the damage if a dizzy spell does happen.
Call your loved one's doctor if you see a drop on your home readings, if dizziness or falls are new or getting worse, or if symptoms started after a new medication or a dose change. Bring or send your written readings, with times and positions.
Call 911 if your loved one faints and doesn't wake up quickly, hits their head, or has chest pain, trouble breathing, a racing or irregular heartbeat, sudden weakness or numbness on one side, a drooping face, slurred speech, or confusion that doesn't clear. Those can be signs of something more serious than a blood pressure drop.
When you log a blood pressure reading in CareCircle, you can note whether your loved one was sitting, lying down, or standing. Log a standing reading within 15 minutes of a sitting or lying one, and CareCircle checks for the drop doctors look for, even when the standing number looks normal on its own. If it finds one, it tells you in plain language and saves the finding with the reading.
Falls and other incidents, medication changes, and symptoms all live in the same place, so you and your family can see what was happening around each one, and Sully, CareCircle's AI assistant, can help you think through it before the next appointment. CareCircle doesn't diagnose anything. It helps you notice, so you can bring the right questions to the doctor. Coming soon to iPhone.
Is orthostatic hypotension the same as low blood pressure?
Not exactly. Someone can have normal or even high blood pressure while sitting and still have a big drop when they stand up. Orthostatic hypotension is about the change between positions: a drop of 20 points or more in the top number, or 10 points or more in the bottom number, within 3 minutes of standing.
Can someone have orthostatic hypotension without feeling dizzy?
Yes. A meaningful share of people with orthostatic hypotension have no obvious symptoms, and others can't easily describe what they feel, especially with speech or memory changes. Sometimes a fall is the first sign anyone notices, which is why paired sitting and standing readings are so useful.
Can medications cause blood pressure to drop when standing?
Yes. Blood pressure medications, diuretics (water pills), alpha-blockers (including some prostate medications), nitrates, some antidepressants and antipsychotics, and Parkinson's medications can all contribute. Taking several blood-pressure-lowering medications together can add up. Never stop or change a medication on your own. Bring your readings to the prescribing doctor.
How often should we check for a drop at home?
Ask your loved one's doctor what they want to see. A common approach is to check at a few different times of day for a week or two, especially first thing in the morning, after meals, and around medication doses, since drops often vary through the day. Write down every reading with the time and position.
Can orthostatic hypotension be treated?
Often it can be improved. Depending on the cause, a doctor may adjust medications, recommend changes like more fluids, compression garments, or raising the head of the bed, or in some cases prescribe a medication that raises blood pressure. Even when it can't be fully fixed, knowing about it lets your family lower the risk of falls.
Is dizziness when standing up always orthostatic hypotension?
No. Inner ear problems, heart rhythm problems, low blood sugar, dehydration, anemia, and other conditions can also cause dizziness. That's why it's worth checking blood pressure in both positions and sharing what you find with the doctor rather than guessing.
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