Chest X-ray
The chest X-ray is the most common exam in radiology. It is quick and helps assess the lungs, heart, and chest cavity.
What it assesses
A chest X-ray shows the lungs, heart, large blood vessels, ribs, and diaphragm. Doctors often order it for a cough that will not go away, shortness of breath, fever with suspected infection, or as an initial test before certain procedures.
The image is usually taken from the front while the patient stands, with the shoulders rolled forward. This position keeps the shoulder blades from covering the lung fields.
Preparation and procedure
Patients are asked to remove jewelry, metal buttons, or clothing with metal parts in the chest area. Tell the staff if you might be pregnant. The exam takes only a few minutes.
During the image, the patient is asked to hold their breath briefly to reduce movement. Movement can blur the image and may require a repeat.
Limitations
A chest X-ray may not detect small or hidden abnormalities behind bone structures. In some cases a doctor will recommend a chest CT for more detailed images.
A normal result does not always mean there is no disease. Discuss your symptoms with your doctor, since further tests may be needed.
Key points
- Often used for persistent cough, pneumonia, or chest pain.
- The patient is asked to hold their breath briefly during the image.
Educational information, not a substitute for medical advice.