X-rays: what it is, what it’s for and when to do it
An X-ray is a type of test used to look inside the body without having to make any cuts to the skin. There are several types of x-rays, which may look at different types of tissue, but the most commonly used are X-rays to observe bone or breast tissue.
- Thus.
- Your doctor may order this test to examine a certain area of your body.
- Where there is some type of pain or discomfort.
- To assess if there is any change so that you can arrive at a diagnosis such as:.
In addition, this type of test can also be used when swallowing a certain type of object, for example, to identify its location and allow the doctor to choose the best technique to remove it.
To perform an X-ray, it is necessary to place the part of the body to be examined, between a machine that produces the x-rays and a hard film plate.
Because X-rays are a type of radiation that can easily pass through the skin, soft tissues, and air, but is absorbed by harder tissues, such as bones, only the rays they pass through reach the film plate. the rays that have managed to pass cause a reaction in the silver of the film that blackens it.
Thus, when the film is revealed, the soft parts and air appear black, while the hardest fabrics are white. When an imaging technician evaluates the film, it may refer to current changes, allowing the doctor to make a diagnosis.
Depending on the location to evaluate, there are different types of x-rays:
In some types of x-rays, the imaging technician may need to use a certain type of contrast, which is a liquid that allows you to observe certain body structures in more detail. The contrast product can be injected directly into the vein, swallowed or injected as an enema into the intestine, depending on which part of the body will be evaluated.
There is usually no special preparation for an X-ray, however, it is advisable to wear loose, comfortable clothing, especially where the x-ray will be needed.
People carrying metal implants or prosthetics should inform the technician or doctor, as this type of material may alter the image or cover the areas to be observed.
If you need an X-ray of your abdomen or gastrointestinal tract, your doctor may recommend fasting, depending on what you want to evaluate.
Radiation emitted by X-rays is very low and therefore this test is considered safe for most adults, without risk of cancer; However, if you need to use some kind of contrast, there is an increased risk of side effects such as:
These effects are normal, however, if they become very intense or if breathing is difficult, they may be a sign of a severe allergic reaction and, in such cases, it is important to inform the technician immediately.
For pregnant women and children, x-rays should be avoided and preference should be given to other types of tests, as radiation can cause changes in the fetus or growth process of children. The woman can have.