What is a Blood Test?

by Gomedii Health care Doctor Appointment

Blood test means our blood is tested on a blood sample. Which is used to measure the amount of certain substances in the blood or to count different types of blood cells. Can be done to look for signs of illness or signs of illness. Blood tests may also be performed to examine antibodies or tumor markers.

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Some of the most common blood tests are:


  • Complete blood count (CBC)
  • Blood chemistry test
  • Blood enzyme test
  • Blood test to assess risk of heart disease
  • Why is a blood test done?
  • Blood tests help to check the patient's illnesses and health conditions. This test also shows how your body parts are functioning. On the basis of which it becomes very easy to treat any disease.


In particular, blood tests can help doctors:


To assess how well the organs like liver, kidney and heart are working

For the treatment of diseases and conditions like cancer, HIV / AIDS, diabetes, anemia and heart related

To find out if you have a heart problem

Check what medicines are you taking

Measure how good your blood is



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What should I know before getting a blood test?

A blood test is very common. Whenever you have your health checked regularly, your doctor may recommend a blood test to see how your body is doing. Doctors recommend a blood test as part of a certain medical procedure to check your health status.


A very small amount of blood sample is taken for this test, so you will not feel any health problems.


Nevertheless, some people feel dizzy during and after the test. If this has happened to you before, tell the doctor about it, so that they can get an idea of ​​your health status.


After this test, the scar and mild pain can be felt for a few days from where the blood sample was taken. Which will recover on its own after some time.


If there is any kind of wound, swelling or infection at the injected area, tell your doctor as soon as possible.


Very few people feel faint during a blood test. If you feel such a situation, tell the doctor or nurse to do the test immediately. Because to stop unconsciousness one should lie down immediately.


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Know what happens



How to prepare for blood test?

Doctors or nurses who take your blood sample for this test will tell you what kind of instructions you should follow before the test.


For example, depending on the type of blood test you may be asked:


Do not eat or drink anything for 12 hours. Can only drink water.

If you take any kind of medicine on a regular basis, then stop taking it before conducting the test.

Inform the doctor of your health status correctly, as it may affect the results of the test.


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What happens during a blood test?


In most cases, this test takes only a few minutes. You can get this test done at your local hospital by a doctor, nurse or felotomist (specialist in taking blood samples).


If your veins are easily visible or detectable, it takes a very short time to take a blood sample. This process usually takes 5 to 10 minutes.


Nevertheless, sometimes it may take longer to identify the vein of some people. For which usually disorders such as dehydration, experience of a phobobotomist or doctor and the size of your veins may be responsible.


Blood tests usually take a blood sample from the vein in your arm.


The sample is taken by hand because it is a convenient part of the body. From where blood sample can be easily taken. Because, the veins of the elbow or wrist are close to the surface.


At the same time, blood samples from children are often taken from the back of the hand. Before taking a sample, a special type of spray or cream is applied to their skin to numb the area. So that they do not feel pain.


Also the tourniquet can usually be easily placed on the upper side of the arm. It tightens the arm and temporarily slows down the flow of blood causing swelling of the veins. Which makes it easier to take a blood sample.


Before sampling, doctors or nurses can also easily cleanse the area of ​​the skin of the arm with antiseptic.


A needle attached to a syringe or special container is inserted into the vein for sampling. Syringes are used to remove a few drops of your blood. As the needle moves in, a slight prick or scratch may be felt, but it is not painful. If during this time you feel more pain, tell the person taking the sample about it so that they can make the process more comfortable for you.


The needle is taken out after taking blood drops. Where pressure is made from cotton for a few minutes so that blood does not flow.

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Created on Jun 12th 2020 04:07. Viewed 269 times.


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