1 AnswerUCLA Health answeredOne type of dizziness can be due to low blood pressure, which may be caused by dehydration, medication, heart disease or a combination of factors. One feels as though he or she might “black out” or lose consciousness. This feeling usually occurs soon after standing or getting up from lying down and may be accompanied by visual symptoms. Sitting or lying down often relieves the feeling. Careful medical evaluation is appropriate for this dizziness.
1 AnswerJoel Fuhrman, MD, Family Medicine, answeredBecause coronary artery filling occurs during diastole, people with coronary artery disease (CAD) are at increased risk for coronary ischemic events (insufficient blood flow and oxygenation) when diastolic blood pressure falls below a certain level. This is because when diastolic blood pressure is too low, the heart does not refill adequately with blood during diastole. When international researchers studied 22,000 patients in a 14-country study, they found a striking increase in heart attacks in those whose medications brought the diastolic blood pressure below 84. Those with a diastolic blood pressure below 60 had 3 times the occurrence of heart attacks compared to those with a diastolic above 80.
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1 AnswerThe following may help prevent hypotension:
People should drink adequate amounts of water. This helps prevent dehydration, a common cause of hypotension.
People who are taking medications that may cause hypotension (such as beta blockers or calcium channel blockers) should know the signs of low blood pressure. If symptoms of hypotension develop, they should visit their doctors. A doctor may then recommend a different dose or medication.
Individuals with heart problems should visit their doctors and cardiologists regularly. This helps reduce the risk of developing hypotension.
Individuals with a history of anaphylaxis should avoid substances that are known to trigger allergic reactions. These individuals should also carry an auto-injectable epinephrine device, called an EpiPen®, with them at all times. A trained family member or friend may help the patient administer the epinephrine, if necessary. Once the epinephrine auto-injector is used, patients should immediately go to the emergency department of the nearest hospital.
Infections should be treated promptly. This reduces the risk of developing septicemia, which may cause a sudden and dramatic drop in blood pressure.
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1 AnswerHoward LeWine, Internal Medicine, answeredNo specific blood pressure reading is considered too low. It always depends upon how the person is feeling and his or her general health.
In your case, it's clear that your blood pressure level is too low when you feel weak and dizzy. When this symptom occurs, you should immediately lie down. If that is not possible, at least sit down. If you continue to stand while feeling lightheaded, you could faint and hurt yourself.
There are many possible causes of low blood pressure. My approach is to review all medications that the person is taking. If you take blood pressure pills or heart medications, the dose may be too high for you. Many other medications can lower blood pressure.
Next, I make sure the person has been drinking enough fluids. You might not feel thirsty, but could be mildly dehydrated. Also, many people restrict their salt intake. Usually this is healthy. But people with low blood pressure may actually need to increase the amount of salt in their diet.
These two factors, medications and dehydration, account for the great majority of low blood pressure episodes. If neither of these applies to you, you could have postural hypotension. In this condition, blood pressure falls dramatically when someone stands. Usually this is caused by problems with the nerves that help regulate blood pressure. People who have had diabetes for a long time can have this problem.
You should definitely contact your doctor if you think one of your medications is causing the low blood pressure or the problem does not quickly go away by increasing your fluid intake.
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2 AnswersSome people have a naturally low blood pressure, without any problems. However, for some people, a drop in blood pressure can bring symptoms. If your blood pressure goes below about 100/50--and you have any symptoms like dizziness or vision changes--talk with your care provider. You may need an adjustment to your treatment plan.
1 AnswerBill Salt, MD, Gastroenterology, answered
If you called me to describe the sudden onset of this, I would advise you to go to the emergency room immediately.
This question includes symptoms of abdominal pain and weakness (which the person feels and describes) and a sign, low blood pressure, or hypotension (which is detected or observed). (Here, I am assuming that the person asking the question has a way to check and detect blood pressure and knows that it is low, such as with a home blood pressure cuff.)
The answers to this question depend upon whether the symptoms (abdominal pain and weakness) and the sign (low blood pressure) are acute or chronic. They could be serious and life-threatening with either, but if they are acute, then it would be important to seek immediate medical attention.
If these symptoms and sign are chronic, the problem could be serious, and there are several possible diagnoses that require consideration by a doctor. One possible cause is rare, which is why I am mentioning it here, because it can be easily missed: adrenal insufficiency (Addison's disease). President Kennedy had this disease, in which the adrenal glands stop producing substances (cortisol and aldosterone) that are vitally important.
2 AnswersLow blood pressure, or hypotension (blood pressure less than 90/60), can be caused by the following: pregnancy; hormonal problems such as underactive/hyperactive thyroid, diabetes, or low blood sugar; over-the-counter medications; overdose of high blood pressure medications; heart failures; abnormal heart rhythm; widening of blood vessels; heat exhaustion; or liver disease.Helpful? 1 person found this helpful.
1 AnswerThe best treatment for low blood pressure depends on the cause. If blood pressure is low due to blood loss then the best treatment would be replacement of fluids either via transfusion or infusion of fluids. Low blood pressure can also be treated with the following: increasing salt intake; increasing fluid intake; taking medications to raise blood pressure; or wearing compression stockings to increase blood return from the lower extremities, decreasing swelling and pooling of blood in the legs.
1 AnswerHonor Society of Nursing (STTI) answered
Another name for low blood pressure is hypotension. Some people have hypotension all the time.These people have no problems with the low blood pressure and it is considered to be normal for them.
Low blood pressure may be a concern to your doctor if you begin to have symptoms such as feeling dizzy, anemia, dehydration, abnormal heartbeats or fainting. Sometimes very low blood pressure can cause shock, a serious condition that needs immediate medical attention. Your doctor will test for further problems to see what might be causing the low blood pressure readings and other symptoms.
1 AnswerAmerican Red Cross answered
If you have low blood pressure, you may donate blood as long as you feel well at the time of donation. If your blood pressure normally runs low, it may be more difficult for your body to adjust to the volume loss following donation, especially if you are dehydrated. Drinking extra water before and after donation is important.
Guidelines on eligibility to give blood change from time to time. The most up-to-date eligibility information can be obtained by contacting the American Red Cross blood center nearest you.