When your doctor tells you to have a 'Nuclear Bone Scan', you must be a little nervous, right? Actually, when we hear the word 'Nuclear', something a little scary comes to mind. But this is actually not something to be afraid of. This is a very important and safe medical test used to check the condition of your bones. Today, we will talk about this in a simple way so that all your questions and fears are removed.

Simply put, what is a Nuclear Bone Scan?

A Nuclear Bone Scan is a special imaging test that checks the health of your bones. It is also called 'Skeletal Scintigraphy'. It involves injecting a very small, safe radioactive substance (we call it a 'tracer' or 'radionuclide') into your body. Now you may be thinking, " Oh, I'm putting something radioactive into my body?" Don't worry. This is a very small, very controlled, safe amount of medicine. To be precise, when this substance enters your body, it goes directly to your bone system. Specifically, this substance collects in places where there is some chemical or physical change, damage, infection, or abnormal process in the bones. Then, a special camera (scanner) detects the areas where this accumulated radioactive substance is present and creates a picture, like a map. By looking at this map, your doctor can pinpoint exactly where your bone problem is and what kind of problem it is.

Why are we being asked to do this bone scan?

There are several reasons why a bone scan may be done. It can detect even very subtle problems that are difficult to detect with a regular X-ray. Let's look at the main reasons.

How do you prepare before the scan?

This does not require any special preparation. You can eat and drink normally. However, some things can affect the way the tracer used in the scan works. Therefore, be sure to tell your doctor about the following:

• If you have recently used a medicine containing bismuth (e.g., an upset stomach medicine like Pepto-Bismol).
• If you have recently had a medical test that used barium (e.g., barium swallow, barium enema).

Before the scan, you will be asked to remove any jewelry or metal objects . You may also be asked to wear a special gown provided by the hospital.

How does the scanning process work?

This process takes place in several stages, but none of them are painful.

1. Injecting the medicine

First, a medical staff member will inject a small injection containing the tracer into a vein in your arm or hand. There is no pain other than a slight stinging sensation when the injection is given.

2. Waiting time

After the injection, it takes between 2 and 4 hours for the tracer to travel through your bloodstream and accumulate in your bones. During this time, you can do whatever you want. You can read a book, check your phone, or just sit in the hospital waiting area. During this time, you will be asked to drink about 4 to 6 glasses of water . This will help flush out any extra tracer that hasn't been absorbed by your bones. You should also urinate and empty your bladder before the scan. Otherwise, the tracer that accumulates in your bladder may make the scan image unclear.

3. Scanning

Now comes the real work. You will lie down on a special table. Then a large camera will move around your body and stop at certain points to take pictures. It is very important that you do not move at all during this time. The staff will ask you to change positions from time to time. This scan can take about 60 minutes. Although it is not painful, it can be a bit uncomfortable to stay in one position. Sometimes your doctor may also order another special type of scan called SPECT (Single-Photon Emission-Computed Tomography) . This involves the camera moving around your body to take more detailed, three-dimensional (3D) pictures.

What happens after the scan?

After the scan is over, you have no restrictions. You can drive home normally. The doctor will tell you to drink plenty of water for the next day or two. This will help the remaining tracer material in your body to be completely eliminated.

Is there a risk in this?

If you're still worried about radiation, consider this. The amount of radiation your body receives from a bone scan is the same as from a regular X-ray. It's very small and safe. However, there are two very important things to keep in mind :

• If you are pregnant or may become pregnant, be sure to inform your doctor before having this test, as radiation can affect the baby in the womb.
• If you are a breastfeeding mother , be sure to mention this as well. After the scan , you will need to follow some special instructions to prevent the radioactive material from passing to your baby through your milk.

The tracer usually leaves your body completely within two days. You should not experience any side effects. However, if the injection site becomes red or painful, talk to your doctor.

How do you get the results?

In the images of the scan, areas where the tracer has accumulated the most appear bright. We call these “hot spots”. Areas where the tracer has not accumulated appear dark, and are called “cold spots”. These ‘hot spots’ show areas where there are abnormalities in the bones. These images are first sent to a specialist (radiologist) to read them. He or she analyzes the images and creates a report that is sent to your doctor. Your doctor will then discuss the report with you and explain the results. Sometimes, a bone scan alone may not be 100% certain of the cause of the abnormality in the bones. In such cases, your doctor may recommend some other tests to find out more information. Nuclear Bone Scan, bone scan sinhala, bone scan, skeletal scintigraphy, bone tests, radiological, bone diseases, cancer, medical investigations sinhala