Pathology Laboratory

A Blood Test Help to Diagnose Various Diseases and Disorder

Last updated on November 14th, 2022 at 03:31 pm

A blood test helps doctors diagnose various diseases and disorder. It also helps them to determine the severity of the disease. Blood test is primary and cost effective way for early diagnosis.

How does a Blood Test Help to Diagnose?

A blood test or Blood tests have a wide range of uses and are one of the most common types of medical test. For example, a blood test can be used to:

  • assess your general state of health
  • check if you have an infection
  • see how well certain organs, such as the liver and kidneys, are working
  • screen for certain genetic conditions

Most blood tests only take a few hours to complete and are carried out at your clinical lab, or phlebotomist (a specialist in taking blood samples). Read about some special types of blood test. For more information about a wider range of tests, search the blood test A-Z index on our lab tests online services in Pune and Pimpri Chinchwad.

Preparing for a blood test

The healthcare nt sickcare laboratory in charge who arranges your blood test will tell you whether there are any specific instructions you need to follow before your test. For example, depending on the type of blood test, you may be asked to:

  • avoid eating or drinking anything, apart from water (fasting) for up to 12 hours
  • stop taking a certain medication

It’s important to follow the instructions you’re given, as it may affect the result of the test and mean it needs to be delayed or carried out again.

Can I eat and drink before having a blood test?

It depends on the type of blood test you’re having. The healthcare nt sickcare laboratory professional arranging your test will tell you if you need to do anything to prepare for it. You can eat and drink as normal before some blood tests. But if you’re having a “fasting blood test”, you will be told not to eat or drink anything (other than water) beforehand. You may also be told not to smoke before your test.

Common fasting blood tests

Examples of blood tests that may require you to fast include:

  • A fasting blood sugar test (used to test for diabetes) – you may be asked to fast for 8 to 12 hours before the test
  • An iron blood test (used to diagnose conditions such as iron deficiency anaemia) – you may be asked to fast for 12 hours before the test
  • An insulin test – to check the insulin level in your body
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Can I take medicine before having a blood test?

It depends on the type of blood test you’re having and what medicine you take. If you’re not sure or you have questions about your blood test, ask your doctor or healthcare nt sickcare lab professional for advice. Never stop taking prescribed medication unless you are told to do so by your doctor.

Medicine and blood test results

Some medicines can affect the results of a blood test, but this does not mean that you need to stop taking your medicine. For example, oral corticosteroids, such as steroid tablets, can increase your cholesterol levels in a blood cholesterol test.

However, a doctor can take this into account when interpreting your test results, so you will not need to stop taking your medicine. If you’re unsure, keep taking your medicine as prescribed and check with your doctor. You may also want to take your medicine with you to show the laboratory manager doing your blood test. Herbal remedies, vitamins or supplements can also affect results, so inform your doctor if you take any of these.

When to stop taking a medicine?

You should never stop taking prescribed medication unless you’re told to do so by your doctor. Sometimes, you may need to stop taking medicine before a blood test.

Testing your medicine

If you’re having a blood test to check whether your medicine is working, in most cases you should keep taking your medicine. For example, if you’re taking medicine to lower your cholesterol level, keep taking it before your cholesterol blood test, as the result will show whether the medicine is working.

What happens during a blood test?

A blood test usually involves taking a blood sample from a blood vessel in your arm. The arm is a convenient part of the body to use because it can be easily uncovered. The usual place for a sample to be taken from is the inside of the elbow or wrist, where the veins are relatively close to the surface. Blood samples from children are often taken from the back of the hand. Their skin may be numbed with a special spray or cream before the sample is taken.

A tight band (tourniquet) is usually put around your upper arm. This squeezes the arm, temporarily slowing down the flow of blood and causing the vein to swell. This makes it easier for a sample to be taken. Before taking the sample, the phlebotomist may clean the area of the skin with an antiseptic wipe.

A needle attached to a syringe or special container is inserted into the vein. The syringe is used to draw out a sample of your blood. You may feel a slight pricking or scratching sensation as the needle goes in, but it shouldn’t be painful. If you don’t like needles and blood, tell the lab technician who is taking the sample so they can make you more comfortable.

When the sample has been taken, the tourniquet will be released, and the needle will be removed. Pressure applies to the skin for a few minutes using a cotton-wool pad. A plaster may be put on the minor wound to keep it clean.

After the blood test

Only a small amount of blood is taken during the test, so you shouldn’t feel any significant after-effects. However, some people feel dizzy and faint during and after the test. If this has happened to you in the past, tell the lab technician carrying out the test so they’re aware and can help you feel more comfortable.

After the test, you may have a minor bruise where the needle went in. Bruises can be painful, but are usually harmless and fade over the next few days.

Blood test results

After the blood sample has been taken, it will be put into a bottle and labelled with your name and details. It will then be sent to a processing laboratory where it will be examined under a microscope or tested with chemicals, depending on what’s being checked.

The results are shared with you in a few hours of the sample taken. Some test results will be ready the same day or a few days later, although others may not be available for a few weeks. You’ll be told when your results will be ready and how you’ll be given them.

Sometimes, receiving results can be stressful. If you’re worried about the outcome of a test, you may choose to take a trusted friend or relative with you. For some tests, such as HIV, you will be offered specialist counselling to help you deal with your results.

Which is test lab for blood test in Pune?

healthcare nt sickcare laboratory in Aundh serve blood test services entire Pune and Pimpri Chinchwad city limits. You can call healthcare nt sickcare lab or book your blood test online to avail your blood test at home services.

Can I get a blood test at home?

Yes, you can avail a blood test at home service from various labs available in your city. healthcare nt sickcare provides free home visit blood collection facility in Pune and Pimpri Chinchwad.

Can I get blood test result at home?

Yes, most of the pathology laboratories providing your blood test report over email and print copies send to you at your home.

Do I get a consultation after my blood test report?

No, most of the clinical laboratories or pathology laboratories are not giving consultations services as they may not do so. You can show the blood test report to your family doctor or you can take help from the laboratory in-charge/pathologist to find a suitable doctor.

Reference: NHS

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