Friday, December 2, 2011

Low blood Pressure

What is low blood pressure???

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps out blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is the diastolic pressure. Your blood pressure reading uses these two numbers. Both are important. Usually they're written one above or before the other, such as 120/80. If your blood pressure reading is 90/60 or lower, you have low blood pressure.
Some people have low blood pressure all the time. They have no symptoms and their low readings are normal for them. In other people, blood pressure drops below normal because of some event or medical condition. Some people may experience symptoms of low pressure when standing up too quickly. Low blood pressure is a problem only if it causes  dizzines,fainting or in extreme cases,shock...

Blood pressure chart..
blood pressure chart is a chart that is designed to show you the ranges for your blood pressure for Systolic and Diastolic pressures to determine whether you’re in the high blood pressure range, low blood pressure range, or normal blood pressure range. It also puts rough estimates on where you should be in relation to your age. Here are the ranges:

High Blood Pressure

Systolic pressure (mm Hg)Diastolic pressure (mm Hg)Stages of High Blood Pressure
210120Stage 4
180110Stage 3
160100Stage 2
14090Stage 1

Normal Blood Pressure

Systolic pressure (mm Hg)Diastolic pressure (mm Hg)Stages of High Blood Pressure
13085High Normal Blood  Pressure
12080Normal Blood Pressure
11075Low Normal Blood  Pressure

Low Blood Pressure
Systolic pressure (mm Hg)Diastolic pressure (mm Hg)Stages of High Blood Pressure
9060Borderline Low blood  Pressure
6040Too Low Blood Pressure
5033Dangerously Low Blood  Pressure

Low blood pressure (hypotension) is pressure so low it causes symptoms or signs due to the low flow of blood through the arteries and veins. When the flow of blood is too low to deliver enough oxygen and nutrients to vital organs such as the brain, heart, and kidney, the organs do not function normally and may be temporarily or permanently damaged.
Unlike high blood pressure, low blood pressure is defined primarily by signs and symptoms of low blood flow and not by a specific blood pressure number. Some individuals routinely may have blood pressures of 90/50 with no symptoms and therefore do not have low blood pressure. However, others who normally have higher blood pressures may develop symptoms of low blood pressure if their blood pressure drops to 100/60.

Symtom of low blood pressure
Many people whose blood pressure is low will experience no symptoms. If the hypotension is not severe and there are no underlying conditions no treatment is necessary. 

If blood pressure is so low that the supply of blood to the brain and other vital organs is insufficient the patient will need medical attention. Severe hypotension is caused by an underlying illness or condition. 

Below are most common about low blood pressure
  • Blurred vision
  • Cold, clammy, pale skin
  • Depression
  • Dizziness
  • Fainting
  • Fatigue
  • General feeling of weakness
  • Nausea
  • Palpitations
  • Rapid, shallow breathing
  • Thirst
The treatment for low blood pressure(hypotension)

People with hypotension and either no symptoms or very mild ones do not require treatment. The National Health Service (NHS), UK, says that a very small percentage of patients who are diagnosed with low blood pressure by their GPs (general practitioners, primary care physicians) are prescribed medications.

  • Medication for low blood pressure
    Some elderly patients who experience symptoms when they suddenly stand up (postural hypotension) may be prescribed medication to narrow the arteries. Fludrocortisones helps boost blood volume. Midodrine also helps boost blood pressure levels.
  • Low blood pressure caused by medications
    If the doctor believes the low blood pressure is being caused by a medication, the dose may be altered. If possible, the doctor may prescribe another medication. 
    If the patient is on a blood pressure lowering drug, such as doxazosin, or an alpha blocker and becomes dizzy or faints when standing up, the doctor will need to find out whether it is being caused by a drop in blood pressure. If it is, the medication will need to be changed.
  • Underlying illnesses or conditions
    If the General Practitioner believes the hypotension is being caused by an underlying condition or illness, such as adrenal gland failure, a thyroid disorder, a nerve condition or a heart condition, the patient will most likely be referred to a specialist.
  • Adrenal gland failure
    This is treated by replacing the missing hormone, aldosterone.
  • A nerve condition
    This is usually harder to treat. The patient may be given medication to stimulate the nervous system.
  • Salt and fluids
    Increasing salt intake may improve the symptoms of hypotension, especially for those with postural hypotension. This can be done either by taking salt tablets or adding more salt to food. It is important to make sure your fluid intake is adequate - ask your doctor how much fluid (water) you should ideally consume each day. Fluids increase blood volume and prevent dehydration - both have an impact on blood pressure levels.
  • Compression stockings
    These help stimulate circulation.
ps: See the doctor first and than they will provide the right medicine that will help you to balance the blood pressure...May all of the information will help all of you..

Thanks for reading..... ;)

Norafiza Syakilla
credit to Google,blood pressure

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