http://www.mayoclinic.org/diseases-conditions/low-blood-pressure/basics/definition/con-20032298Low blood pressure (hypotension)

DefinitionLow blood pressure (hypotension) would seem to be something to strive for. However, for many people, low blood pressure can cause symptoms of dizziness and fainting. In severe cases, low blood pressure can be life-threatening.Although blood pressure varies from person to person, a blood pressure reading of 90 millimeters of mercury (mm Hg) or less systolic blood pressure (the top number in a blood pressure reading) or 60 mm Hg or less diastolic blood pressure (the bottom number) is generally considered low blood pressure.The causes of low blood pressure can range from dehydration to serious medical or surgical disorders. Low blood pressure is treatable, but its important to find out whats causing your condition so that it can be properly treated.

SymptomsFor some people, low blood pressure can signal an underlying problem, especially when it drops suddenly or is accompanied by signs and symptoms such as: Dizziness or lightheadedness Fainting (syncope) Lack of concentration Blurred vision Nausea Cold, clammy, pale skin Rapid, shallow breathing Fatigue Depression ThirstWhen to see a doctorIn many instances, low blood pressure isnt serious. If you have consistently low readings but feel fine, your doctor is likely to monitor you during routine exams.Even occasional dizziness or lightheadedness may be a relatively minor problem the result of mild dehydration from too much time in the sun or a hot tub, for example. In these situations, its not a matter so much of how far, but of how quickly, your blood pressure drops.Still, its important to see your doctor if you experience any signs or symptoms of hypotension because they sometimes can point to more-serious problems. It can be helpful to keep a record of your symptoms, when they occur and what you were doing at the time.CausesBlood pressure is a measurement of the pressure in your arteries during the active and resting phases of each heartbeat. Heres what the numbers mean: Systolic pressure.The first (top) number in a blood pressure reading, this is the amount of pressure your heart generates when pumping blood through your arteries to the rest of your body. Diastolic pressure.The second (bottom) number in a blood pressure reading, this refers to the amount of pressure in your arteries when your heart is at rest between beats.Current guidelines identify normal blood pressure as lower than 120/80 mm Hg.Although you can get an accurate blood pressure reading at any given time, blood pressure isnt always the same. It can vary considerably in a short amount of time sometimes from one heartbeat to the next, depending on body position, breathing rhythm, stress level, physical condition, medications you take, what you eat and drink, and even time of day. Blood pressure is usually lowest at night and rises sharply on waking.Blood pressure: How low can you go?Whats considered low blood pressure for you may be normal for someone else. Most doctors consider chronically low blood pressure too low only if it causes noticeable symptoms.Some experts define low blood pressure as readings lower than 90 mm Hg systolic or 60 mm Hg diastolic you need to have only one number in the low range for your blood pressure to be considered lower than normal. In other words, if your systolic pressure is a perfect 115, but your diastolic pressure is 50, youre considered to have lower than normal pressure.A sudden fall in blood pressure also can be dangerous. A change of just 20 mm Hg a drop from 110 systolic to 90 mm Hg systolic, for example can cause dizziness and fainting when the brain fails to receive an adequate supply of blood.And big plunges, especially those caused by uncontrolled bleeding, severe infections or allergic reactions, can be life-threatening.Athletes and people who exercise regularly tend to have lower blood pressure and a slower heart rate than do people who arent as fit. So, in general, do nonsmokers and people who eat a healthy diet and maintain a normal weight.But in some rare instances, low blood pressure can be a sign of serious, even life-threatening disorders.Conditions that can cause low blood pressureSome medical conditions can cause low blood pressure. These include: Pregnancy.Because a womans circulatory system expands rapidly during pregnancy, blood pressure is likely to drop. This is normal, and blood pressure usually returns to your pre-pregnancy level after youve given birth. Heart problems.Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure.These conditions may cause low blood pressure because they prevent your body from being able to circulate enough blood. Endocrine problems.Thyroid conditions such as parathyroid disease adrenal insufficiency (Addisons disease), low blood sugar (hypoglycemia) and, in some cases, diabetes can trigger low blood pressure. Dehydration.When you become dehydrated, your body loses more water than it takes in. Even mild dehydration can cause weakness, dizziness and fatigue. Fever, vomiting, severe diarrhea, overuse of diuretics and strenuous exercise can all lead to dehydration.Far more serious is hypovolemic shock, a life-threatening complication of dehydration. It occurs when low blood volume causes a sudden drop in blood pressure and a reduction in the amount of oxygen reaching your tissues. If untreated, severe hypovolemic shock can cause death within a few minutes or hours. Blood loss.Losing a lot of blood from a major injury or internal bleeding reduces the amount of blood in your body, leading to a severe drop in blood pressure. Severe infection (septicemia).Septicemia can happen when an infection in the body enters the bloodstream. This condition can lead to a life-threatening drop in blood pressure called septic shock. Severe allergic reaction (anaphylaxis).Anaphylaxis is a severe and potentially life-threatening allergic reaction. Common triggers of anaphylaxis include foods, certain medications, insect venoms and latex. Anaphylaxis can cause breathing problems, hives, itching, a swollen throat and a drop in blood pressure. Lack of nutrients in your diet.A lack of the vitamins B-12 and folate can cause a condition in which your body doesnt produce enough red blood cells (anemia), causing low blood pressure.Medications that can cause low blood pressureSome medications you may take can also cause low blood pressure, including: Diuretics (water pills), such as furosemide (Lasix) and hydrochlorothiazide (Microzide, Oretic) Alpha blockers, such as prazosin (Minipress) and labetalol Beta blockers, such as atenolol (Tenormin), propranolol (Inderal, Innopran XL, others) and timolol Drugs for Parkinsons disease, such as pramipexole (Mirapex) or those containing levodopa Certain types of antidepressants (tricyclic antidepressants), including doxepin (Silenor), imipramine (Tofranil), protriptyline (Vivactil) and trimipramine (Surmontil) Sildenafil (Viagra) or tadalafil (Cialis), particularly in combination with the heart medication nitroglycerinTypes of low blood pressureDoctors often break down low blood pressure (hypotension) into different categories, depending on the causes and other factors. Some types of low blood pressure include: Low blood pressure on standing up (orthostatic, or postural, hypotension).This is a sudden drop in blood pressure when you stand up from a sitting position or if you stand up after lying down.Ordinarily, gravity causes blood to pool in your legs whenever you stand. Your body compensates for this by increasing your heart rate and constricting blood vessels, thereby ensuring that enough blood returns to your brain.But in people with orthostatic hypotension, this compensating mechanism fails and blood pressure falls, leading to symptoms of dizziness, lightheadedness, blurred vision and even fainting.Orthostatic hypotension can occur for a variety of reasons, including dehydration, prolonged bed rest, pregnancy, diabetes, heart problems, burns, excessive heat, large varicose veins and certain neurological disorders.A number of medications also can cause orthostatic hypotension, particularly drugs used to treat high blood pressure diuretics, beta blockers, calcium channel blockers and angiotensin-converting enzyme (ACE) inhibitors as well as antidepressants and drugs used to treat Parkinsons disease and erectile dysfunction.Orthostatic hypotension is especially common in older adults, with as many as 20 percent of those older than age 65 experiencing orthostatic hypotension.But orthostatic hypotension can also affect young, otherwise healthy people who stand up suddenly after sitting with their legs crossed for long periods or after working for a time in a squatting position. Low blood pressure after eating (postprandial hypotension).Postprandial hypotension is a sudden drop in blood pressure after eating. It affects mostly older adults.Just as gravity pulls blood to your feet when you stand, a large amount of blood flows to your digestive tract after you eat.Ordinarily, your body counteracts this by increasing your heart rate and constricting certain blood vessels to help maintain normal blood pressure. But in some people these mechanisms fail, leading to dizziness, faintness and falls.Postprandial hypotension is more likely to affect people with high blood pressure or autonomic nervous system disorders such as Parkinsons disease.Lowering the dose of blood pressure drugs and eating small, low-carbohydrate meals may help reduce symptoms. Low blood pressure from faulty brain signals (ludrocor mediated hypotension).This disorder causes blood pressure to drop after standing for long periods, leading to signs and symptoms such as dizziness, nausea and fainting.Neurally mediated hypotension mostly affects young people, and it seems to occur because of a miscommunication between the heart and the brain.When you stand for extended periods, your blood pressure falls as blood pools in your legs. Normally, your body then makes adjustments to normalize your blood pressure.But in people with ludrocor mediated hypotension, nerves in the hearts left ventricle actually signal the brain that blood pressure is too high, rather than too low.As a result, the brain lessens the heart rate, decreasing blood pressure even further. This causes more blood to pool in the legs and less blood to reach the brain, leading to lightheadedness and fainting. Low blood pressure due to nervous system damage (multiple system atrophy with orthostatic hypotension).Also called Shy-Drager syndrome, this rare disorder causes progressive damage to the autonomic nervous system, which controls involuntary functions such as blood pressure, heart rate, breathing and digestion.Although this condition can be associated with muscle tremors, slowed movement, problems with coordination and speech, and incontinence, its main characteristic is severe orthostatic hypotension in combination with very high blood pressure when lying down.Risk factorsLow blood pressure (hypotension) can occur in anyone, though certain types of low blood pressure are more common depending on your age or other factors: Age.Drops in blood pressure on standing or after eating occur primarily in adults older than 65. Orthostatic, or postural, hypotension happens after standing up, while postprandial hypotension happens after eating a meal.Neurally mediated hypotension happens as a result of a miscommunication between the brain and heart. It primarily affects children and younger adults. Medications.People who take certain medications, such as high blood pressure medications like alpha blockers, have a greater risk of low blood pressure. Certain diseases.Parkinsons disease, diabetes and some heart conditions put you at a greater risk of developing low blood pressure.ComplicationsEven moderate forms of low blood pressure can cause not only dizziness and weakness but also fainting and a risk of injury from falls.And severely low blood pressure from any cause can deprive your body of enough oxygen to carry out its normal functions, leading to damage to your heart and brain.Preparing for your appointmentNo special preparations are necessary to have your blood pressure checked. You might want to wear a short-sleeved shirt to your appointment so that the blood pressure cuff can fit around your arm properly.Dont stop taking any prescription medications that you think may affect your blood pressure without your doctors advice.Because appointments can be brief, and because theres often a lot to discuss, its a good idea to be prepared for your appointment. Heres some information to help you get ready for your appointment, and what to expect from your doctor.What you can do Be aware of any pre-appointment restrictions.At the time you make the appointment, be sure to ask if theres anything you need to do in advance, such as restrict your diet for a blood test. Write down any symptoms youre experiencing,including any that may seem unrelated to low blood pressure. Write down key personal information,including a family history of low blood pressure and any major stresses or recent life changes. Make a list of all medications,vitamins or supplements that youre taking. Take a family member or friend along,if possible. Sometimes it can be difficult to remember all the information provided to you during an appointment. Someone who accompanies you may remember something that you missed or forgot. Be prepared to discussyour diet and exercise habits. If you dont already follow a diet or exercise routine, be ready to talk to your doctor about any challenges you might face in getting started. Write down questions to askyour doctor.Your time with your doctor is limited, so preparing a list of questions will help you make the most of your time together. List your questions from most important to least important in case time runs out. For low blood pressure, some basic questions to ask your doctor include: What is likely causing my symptoms or condition? What are other possible causes for my symptoms or condition? What kinds of tests will I need? Whats the most appropriate treatment? What foods should I eat or avoid? Whats an appropriate level of physical activity for me? How often should I be screened for low blood pressure? I have other health conditions. How can I best manage them together? Are there any restrictions that I need to follow? Should I see a specialist? Is there a generic alternative to the medicine youre prescribing for me? Are there any brochures or other printed material that I can take home with me? What websites do you recommend visiting?In addition to the questions that youve prepared to ask your doctor, dont hesitate to ask any other questions you may think of during your appointment.What to expect from your doctorYour doctor is likely to ask you a number of questions. Being ready to answer them may reserve time to go over any points you want to spend more time on. Your doctor may ask: When did you begin experiencing symptoms? Have your symptoms been continuous or occasional? How severe are your symptoms? What, if anything, seems to improve your symptoms? What, if anything, appears to worsen your symptoms? Have you been diagnosed with any other health conditions? What medications are you currently taking? What is your typical daily diet? How much exercise do you get in an average week? Do you have a family history of heart disease?Tests and diagnosis Tilt table test

The goal in testing for low blood pressure is to find the underlying cause. This helps determine the correct treatment and identify any heart, brain or nervous system problems that may cause lower than normal readings. To reach a diagnosis, your doctor may recommend one or more of the following tests: Blood pressure test.Blood pressure is measured with an inflatable arm cuff and a pressure-measuring gauge.A blood pressure reading, given in millimeters of mercury (mm Hg), has two numbers. The first, or upper, number measures the pressure in your arteries when your heart beats (systolic pressure). The second, or lower, number measures the pressure in your arteries between beats (diastolic pressure). Blood tests.These can provide information about your overall health as well as whether you have low blood sugar (hypoglycemia), high blood sugar (hyperglycemia or diabetes) or a low number of red blood cells (anemia), all of which can cause lower than normal blood pressure. Electrocardiogram (ECG).During this painless, noninvasive test, soft, sticky patches (electrodes) are attached to the skin of your chest, arms and legs. The patches detect your hearts electrical signals while a machine records them on graph paper or displays them on a screen.An ECG, which can be performed in your doctors office, detects irregularities in your heart rhythm, structural abnormalities in your heart, and problems with the supply of blood and oxygen to your heart muscle. It can also tell if youre having a heart attack or if youve had a heart attack in the past.Sometimes, heart rhythm abnormalities come and go, and an ECG wont find any problems. If this happens, you may be asked to wear a 24-hour Holter monitor to record your hearts electrical activity as you go about your daily routine. Echocardiogram.This noninvasive exam, which includes an ultrasound of your chest, shows detailed images of your hearts structure and function.Ultrasound waves are transmitted, and their echoes are recorded with a device called a transducer, which is held outside your body. A computer uses the information from the transducer to create moving images on a video monitor. Stress test.Some heart problems that can cause low blood pressure are easier to diagnose when your heart is working harder than when its at rest. During a stress test, youll exercise, such as walking on a treadmill. You may be given medication to make your heart work harder if youre unable to exercise.When your heart is working harder, your heart will be monitored with electrocardiography or echocardiography. Your blood pressure also may be monitored. Valsalva maneuver. This noninvasive test checks the functioning of your autonomic nervous system by analyzing your heart rate and blood pressure after several cycles of a type of deep breathing: You take a deep breath and then force the air out through your lips, as if you were trying to blow up a stiff balloon. Tilt table test.If you have low blood pressure on standing, or from faulty brain signals (ludrocor mediated hypotension), your doctor may suggest a tilt table test, which evaluates how your body reacts to changes in position.During the test, you lie on a table thats tilted to raise the upper part of your body, which simulates the movement from horizontal to a standing position.Treatments and drugs Compression stockings

Low blood pressure that either doesnt cause signs or symptoms or causes only mild symptoms, such as brief episodes of dizziness when standing, rarely requires treatment.If you have symptoms, the most appropriate treatment depends on the underlying cause, and doctors usually try to address the primary health problem dehydration, heart failure, diabetes or hypothyroidism, for example rather than the low blood pressure itself.When low blood pressure is caused by medications, treatment usually involves changing the dose of the medication or stopping it entirely.If its not clear whats causing low blood pressure or no effective treatment exists, the goal is to raise your blood pressure and reduce signs and symptoms. Depending on your age, health status and the type of low blood pressure you have, you can do this in several ways: Use more salt.Experts usually recommend limiting the amount of salt in your diet because sodium can raise blood pressure, sometimes dramatically. For people with low blood pressure, that can be a good thing.But because excess sodium can lead to heart failure, especially in older adults, its important to check with your doctor before increasing the salt in your diet. Drink more water.Although nearly everyone can benefit from drinking enough water, this is especially true if you have low blood pressure.Fluids increase blood volume and help prevent dehydration, both of which are important in treating hypotension. Wear compression stockings.The same elastic stockings commonly used to relieve the pain and swelling of varicose veins may help reduce the pooling of blood in your legs. Medications.Several medications, either used alone or together, can be used to treat low blood pressure that occurs when you stand up (orthostatic hypotension).For example, the drug ludrocortisones is often used to treat this form of low blood pressure. This drug helps boost your blood volume, which raises blood pressure.Doctors often use the drug midodrine (Orvaten) to raise standing blood pressure levels in people with chronic orthostatic hypotension. It works by restricting the ability of your blood vessels to expand, which raises blood pressure.Lifestyle and home remediesDepending on the reason for your low blood pressure, you may be able to take certain steps to help reduce or even prevent symptoms. Some suggestions include: Drink more water, less alcohol.Alcohol is dehydrating and can lower blood pressure, even if you drink in moderation. Water, on the other hand, combats dehydration and increases blood volume. Follow a healthy diet.Get all the nutrients you need for good health by focusing on a variety of foods, including whole grains, fruits, vegetables, and lean chicken and fish.If your doctor suggests using more salt but you dont like a lot of salt on your food, try using natural soy sauce or adding dry soup mixes to dips and dressings. Go slowly when changing body positions.You may be able to reduce the dizziness and lightheadedness that occur with low blood pressure on standing by taking it easy when you move from a prone to a standing position.Before getting out of bed in the morning, breathe deeply for a few minutes and then slowly sit up before standing. Sleeping with the head of your bed slightly elevated also can help fight the effects of gravity.If you begin to get symptoms while standing, cross your thighs in a scissors fashion and squeeze, or put one foot on a ledge or chair and lean as far forward as possible. These maneuvers encourage blood to flow from your legs to your heart. Eat small, low-carb meals.To help prevent blood pressure from dropping sharply after meals, eat small portions several times a day and limit high-carbohydrate foods such as potatoes, rice, pasta and bread.Your doctor also may recommend drinking caffeinated coffee or tea with meals to temporarily raise blood pressure. But because caffeine can cause other problems, check with your doctor before drinking more caffeinated beverages.*******************************.

http://www.webmd.com/heart/understanding-low-blood-pressure-basicsWhat Is Low Blood Pressure?Hypotension is the medical term forlow blood pressure(less than 90/60).Ablood pressurereading appears as two numbers. The first and higher of the two is a measure of systolic pressure, or the pressure in thearterieswhen theheartbeats and fills them withblood. The second number measures diastolic pressure, or the pressure in the arteries when theheartrests between beats.Optimal blood pressure is less than 120/80 (systolic/diastolic). In healthy people, low blood pressure without any symptoms is not usually a concern and does not need to be treated. But low blood pressure can be a sign of an underlying problem -- especially in the elderly -- where it may cause inadequatebloodflow to the heart,brain, and other vital organs.

Chronic low blood pressure with no symptoms is almost never serious. But health problems can occur when blood pressure drops suddenly and thebrainis deprived of an adequate blood supply. This can lead todizzinessor lightheadedness. Sudden drops in blood pressure most commonly occur in someone who's rising from a lying down or sitting position to standing. This kind of low blood pressure is known aspostural hypotensionor orthostatic hypotension. Another type of low blood pressure can occur when someone stands for a long period of time. This is called neurally mediated hypotension.Postural hypotension is considered a failure of the cardiovascular system ornervous systemto react appropriately to sudden changes. Normally, when you stand up, some blood pools in your lower extremities. Uncorrected, this would cause your blood pressure to fall. But your body normally compensates by sending messages to your heart to beat faster and to your blood vessels to constrict. This offsets the drop in blood pressure. If this does not happen, or happens too slowly, postural hypotension results.The risk of both low andhigh blood pressurenormally increases with age due in part to normal changes during aging. In addition, blood flow to the heart muscle and thebraindeclines with age, often as a result of plaque buildup in blood vessels. An estimated 10% to 20% of people over age 65 have postural hypotension.What Causes Low Blood Pressure?The cause of low blood pressure isn't always clear. It may be associated with the following: Pregnancy Hormonal problems such as an underactivethyroid(hypothyroidism),diabetes, orlow blood sugar(hypoglycemia) Some over-the-countermedications Some prescription medicines such as forhigh blood pressure,depressionor Parkinsons disease Heart failure Heart arrhythmias (abnormal heart rhythms) Widening, or dilation, of the blood vessels Heat exhaustionorheat stroke LiverdiseaseWhat Causes a Sudden Drop in Blood Pressure?Sudden drops in blood pressure can be life-threatening. Causes of this type of hypotension include: Loss of blood from bleeding Lowbody temperature High body temperature Heart muscle disease causing heart failure Sepsis, a severeblood infection Severedehydrationfromvomiting,diarrhea, or fever A reaction to medication or alcohol Asevere allergic reaction, calledanaphylaxisWho Gets Postural Hypotension?Postural hypotension, which is low blood pressure when standing up suddenly, can happen to anyone for a variety of reasons, such asdehydration, lack of food, or being overly fatigued. It can also be influenced by genetic make-up, aging, medication, dietary and psychological factors, and acute triggers, such as infection andallergy.Postural hypotension occurs most frequently in people who are taking drugs to controlhigh blood pressure(hypertension). It can also be related to pregnancy, strong emotions, hardening of the arteries (atherosclerosis), ordiabetes. The elderly are particularly affected, especially those who havehigh blood pressureor autonomic nervous system dysfunction.Hypotension after meals is a common cause ofdizzinessand falls after eating. This is most common after large meals containing a lot of carbohydrates. Its believed to be caused by blood pooling into the vessels of thestomachandintestines.Several drugs are commonly associated with postural hypotension. These medications can be divided into two major categories: Drugs used to treathigh blood pressure, such as diuretics, beta-blockers,calcium-channel blockers, and angiotensin-converting enzyme (ACE) inhibitors Drugs that have hypotension as a side effect, including nitrates,erectile dysfunctionmedications, drugs forParkinson's disease, antipsychotics, neuroleptics, anti-anxietyagents, sedative-hypnotics, and tricyclicantidepressantsWhat Causes Low Blood Pressure? continued...Common causes of naturally occurring postural hypotension include: Dehydrationand electrolyte loss, which may result fromdiarrhea,vomiting, excessive blood loss duringmenstruation, or other conditions Age-associated decline in blood pressure regulation, which may be worsened by certain health conditions or medicationsCertain diseases can also cause postural hypotension. These include: Central nervous system disorders, such as Shy-Drager syndrome ormultiple system atrophy Nerve problems, such asperipheral neuropathyorautonomic neuropathy Cardiovascular disorders Alcoholism Nutritional diseases

****************************************************.http://www.webmd.com/heart/understanding-low-blood-pressure-treatmentHow Do I Know if I Have Low Blood Pressure?Low blood pressureis not always a sign of a problem. But if you have symptoms of low blood pressure, your doctor can diagnose the condition and uncover the cause. Symptoms ofdizzinessand lightheadedness when you stand up from sitting or lying down -- with a decrease in yourblood pressure-- may indicate a condition calledpostural hypotension. A wide range of underlying conditions may also cause your symptoms. It's important to identify the cause of lowbloodpressure so appropriate treatment can be given.The doctor will look at your medical history, age, specific symptoms, and the conditions under which the symptoms occurred. He or she will do aphysical examand may repeatedly check your blood pressure and pulse rate -- after you've been lying down for a few minutes, right after you stand up, and within a few minutes after you stand quietly.Other tests may be performed, such as anECG(electrocardiogram) to measureheartrate and rhythm and anechocardiogram(anultrasoundtest to visualize theheart). You may also havebloodtests to look foranemiaor problems with yourblood sugar levels.More sophisticated home ECG monitoring (a Holter monitor or "event" monitor) may be necessary to check forheartproblems that come and go.

Echocardiogram AnimationWatch NowAnexercise stress testor, less commonly, an electrophysiology test (EP test) may also be helpful.Some forms of postural hypotension may require a test called a "tilt table" test. This test evaluates the body's reaction to changes in position. The person lies on a table, is safely strapped in, and the table is raised to an upright position for up to an hour. Blood pressure,heart rate, and symptoms are recorded. Often,medicationsare given to help guide treatment.What Are the Treatments for Low Blood Pressure?For many people, chronic low blood pressure can be effectively treated with diet and lifestyle changes.Depending on the cause of your symptoms, your doctor may tell you to increase your blood pressure by making these simple changes: Eat a diet higher in salt. Drink lots of nonalcoholic fluids. Limitalcoholicbeverages. Drink more fluids during hot weather and while sick with a viral illness, such as a cold or theflu. Have your doctor evaluate your prescription and over-the-counter medications to see if any of them are causing your symptoms. Get regularexerciseto promotebloodflow. Be careful when rising from lying down or sitting. To help improve circulation, pump yourfeetandanklesa few times before standing up. Then proceed slowly. When getting out of bed, sit upright on the edge of the bed for a few minutes before standing. Elevate the head of your bed at night by placing bricks or blocks under the head of bed. Avoid heavy lifting. Avoid straining while on the toilet. Avoid prolonged exposure to hot water, such as hot showers and spas. If you get dizzy, sit down. It may be helpful to keep a chair or stool in the shower in case you need to sit; to help prevent injury, use a nonslip chair or stool designed for use in showers and bath tubs. To avoid problems with low blood pressure and lessen episodes ofdizzinessafter meals, try eating smaller, more frequent meals. Cut back on carbohydrates. Rest after eating. Avoid taking drugs to lower blood pressure before meals. If needed, use elastic support (compression) stockings that cover thecalfand thigh. These may help restrict blood flow to the legs, thus keeping more blood in the upper body.What Are the Treatments for Low Blood Pressure? continued...Medications for Low Blood PressureIf these measures don't lessen the problem, you may need medication.The following drugs are often used in treating low blood pressure. Fludrocortisone.Fludrocortisone is a medication that seems to help most types of low blood pressure. It works by promoting sodium retention by thekidney, thereby causing fluid retention and some swelling, which is necessary to improve blood pressure. But this sodium retention also causes a loss ofpotassium. So when taking fludrocortisone, it's important to get enough potassium each day. Fludrocortisone has none of the anti-inflammatory properties ofcortisoneorprednisoneand does not build muscle like anabolic steroids. Midodrine.Midodrineactivates receptors on the smallestarteriesand veins to produce an increase in blood pressure. It is used to help increase standing blood pressure in people with postural hypotension related tonervous systemdysfunction. More studies are underway, however, to see how effective this treatment is.***************.