X-ray Test
Overview
X-rays are a common form of medical imaging that doctors and dentists use to see inside the body. These tests are straightforward and do not cause pain. X-ray beams travel through the body, and tissues absorb them in different amounts based on their density.
Material | X-ray Appearance |
---|---|
Bone/Metal | White |
Fat/Muscle | Shades of Gray |
Air (e.g., Lungs) | Black |
In some cases, doctors use a special substance called a contrast medium to make certain areas more visible. This helps with the detailed study of specific organs or tissues. X-rays help diagnose injuries, medical conditions, and dental problems.
Reasons for Performing This Imaging Test
Checking Bones and Dental Health
X-rays often help doctors look at bones and teeth. They reveal breaks, cracks, or infections that may not be easy to spot from the outside. For example, this test can show a bone fracture or a tooth abscess.
Doctors monitor joint changes related to arthritis over time with these images. If someone has arthritis, repeated X-rays can show if the condition is getting worse. Dentists use special X-rays to check for cavities or impacted teeth that cannot be seen with just a regular exam.
A special version of this imaging test measures bone density, which helps diagnose osteoporosis. Doctors can identify issues such as bone cancer or tumors since abnormal growths often appear clearly. Common bone and joint issues checked with X-rays include:
Bones & Joints | Dental Health |
---|---|
Fractures and breaks | Tooth decay |
Infections | Abscesses |
Tumors and cysts | Impacted teeth |
Bone loss (osteoporosis) | |
Arthritis or joint damage |
Examining the Chest, Lungs, and Heart
Doctors use this imaging to look inside the chest and find problems with the lungs, heart, or blood vessels. For example, they check for pneumonia, a lung infection that often shows as cloudy spots. Doctors also use X-rays to find other lung diseases like tuberculosis or lung cancer.
Women may get a specialized form of this test called a mammogram to find early signs of breast cancer. Doctors can see the size and shape of the heart, which helps diagnose issues such as an enlarged heart connected to heart failure. If they need a closer look at blood vessels, they use a dye to make the vessels stand out in the image.
Looking at the Abdomen and Digestive Tract
When someone has stomach or digestive problems, doctors use X-ray imaging to see what is happening inside the abdomen. Sometimes a person drinks a liquid that appears on the test, highlighting the stomach or intestines. This helps spot issues like blockages, unusual narrowing, or growths.
If a child swallows something they should not have, such as a coin or a small toy, doctors use an X-ray to find out where the object is. X-rays also help check organs such as the kidneys and bladder, since stones or swelling can sometimes be seen.
Additional Conditions and Uses
Doctors use X-rays to support diagnosis and care for many different conditions. Here is a quick summary of other areas where this test applies:
- Joint and Muscle Injuries: Sprains, dislocations, and tendon problems.
- Bone Diseases: Tumors, spurs, and metabolic bone conditions.
- Heart and Blood Vessel Issues: Blockages, aneurysms, or birth defects.
- Lung and Airway Diseases: Asthma, lung infections, or chronic cough.
- Digestive Problems: Ulcers, abnormal growths, and constipation.
- Bladder, Kidney, or Urinary Issues: Stones, swelling, or infections.
Some of the main conditions where imaging is important include bone cancer, arthritis, bladder stones, broken bones, heart disease, pneumonia, and tumors in various organs.
Risks
Exposure to Radiation
X-ray exams use small amounts of radiation to create images inside the body. Although the levels are low, radiation can cause changes in cells. This may slightly increase the chance of cancer much later in life. Children are more sensitive to these effects than adults, so medical teams take extra care with young patients.
During pregnancy, even a low dose of radiation carries a risk for the developing baby. If there is a chance of pregnancy, patients should let the medical team know. Doctors may recommend an imaging test that does not use radiation, such as an ultrasound.
Quick Facts
Age Group | Sensitivity to Radiation |
---|---|
Children | Higher |
Adults | Lower |
Pregnant People | Increased risk to fetus |
Use of Dye for Imaging
Sometimes, doctors use a special dye (contrast medium) to get clearer X-ray images. People with a history of allergies should talk with their doctor before having X-rays with contrast medium. This dye can cause mild side effects, such as a warm feeling, metallic taste, nausea, or itching.
Most side effects are brief and go away on their own. Rarely, some people have an allergic reaction. Symptoms of a reaction can include hives, trouble breathing, or swelling. In very few cases, blood pressure may drop dangerously low.
Getting Ready for the Exam
Clothing Choices
Patients usually need to remove clothing from the area doctors will check. Hospitals often provide a gown for comfort and privacy during the X-ray. All metal items, like jewelry, belts, or eyeglasses, should be taken off because metal can affect the quality of the images. Sometimes, staff use a lead apron to cover parts of the body that do not need to be X-rayed.
Using Special Imaging Agents
Some X-ray tests require a special liquid called a contrast agent to get clearer images. Doctors may have patients swallow, inject, or take the agent as an enema, depending on which part of the body they will examine. Contrast agents help doctors see certain tissues more clearly on the X-ray.
What To Expect When Getting an X-ray
Hospitals, dental clinics, and some doctor’s offices have the equipment needed to take X-rays. A radiologic technologist guides the patient to the correct spot and may use pillows or sandbags to keep the body in the needed position. Patients need to stay still and sometimes hold their breath to avoid blurry images.
The process is usually quick, but it might take a little longer if the technologist uses a special dye, like in an intravenous pyelogram, angiography, or barium enema. These special procedures might require extra steps, such as drinking or getting an injection of contrast medium.
Role | What They Do |
---|---|
Radiologic Technologist | Positions the patient and operates the machine |
Radiologist | Reviews the images and writes a report |
Patient | Remains still for clear pictures |
Mammography and other specific X-rays may need different equipment or positions, but the steps are similar.
If a Young Patient Needs an X-ray
Young children often have trouble holding still. The technologist may use gentle straps or soft supports to help the child remain in one place. These devices do not hurt the child but help avoid having to redo the scan. In most cases, a parent or guardian can stay in the room for support and will usually wear a lead apron to help block extra radiation. Ways to help a child during an X-ray:
- Bring a familiar toy or comfort item.
- Explain the process in simple words.
- Stay calm and reassuring.
What Happens Once the X-ray Is Done
Most people can go back to their usual routines right away. For normal X-rays, side effects are rare. If doctors use a contrast dye like barium or iodine—such as for a lower GI series or angiography—it is important to drink fluids after the test. This helps remove the dye from the body. If pain, swelling, or redness appears where the dye was injected, or if there are any other unusual symptoms, patients should contact their medical team for advice.
X-Ray Findings
Healthcare professionals store x-ray images digitally, allowing fast access. A radiologist reviews the x-ray image and creates a report, then gives it to the patient’s medical provider. In urgent cases, results may be available in just a few minutes.
Key Points
- Digital storage enables instant access to your content.
- Reports come from a radiologist.
- Your healthcare provider explains the findings.