Chest X-ray (Radiographic Examination)
A chest X-ray is an imaging test that captures a picture of your chest to check for conditions affecting your heart, lungs, airways, or blood vessels.
["This test helps doctors diagnose and monitor lung diseases, heart issues, and other chest-related problems."]
Key facts at a glance
- LOINC
- 24657-9
- Short code
- XR tomo Chest
- Synonyms
- XR tomo Chest
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr-tomography
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What Is a Chest X-Ray Used For?
Chest X-rays are commonly used to identify issues like infections (such as pneumonia), fluid buildup (such as in the lungs or around the heart), structural abnormalities (like collapsed lungs or enlarged heart), and signs of conditions like cancer or heart failure. They can also help assess injuries or determine if a foreign object is present in the chest cavity.
How Is a Chest X-Ray Performed?
You’ll typically stand or lie down while the X-ray technician positions you in front of a special camera. A lead apron is used to protect your body from radiation. The image is taken from the front (anterior) and sometimes the back (posterior) of your chest. No special preparation is needed, but you may be asked to remove jewelry or clothing covering the chest area.
What Are Common Findings on a Chest X-Ray?
Common findings may include increased opacity (whiteness) in the lungs, which could indicate fluid, infection, or inflammation; abnormal shapes or sizes of the heart or lungs; or signs of collapsed lung tissue. Radiologists interpret these images to provide a detailed report.
How Long Does It Take to Get Results?
Results from a chest X-ray are usually available within a few hours to a day, depending on your healthcare provider’s workflow. Your doctor will discuss the findings with you during a follow-up visit.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Chest X-rays play a critical role in diagnosing and managing a wide range of medical conditions. They provide a quick, non-invasive way to detect issues that may not be obvious during a physical exam. Early detection can lead to timely treatment, improved outcomes, and better management of chronic conditions.
Frequently asked questions
What does a chest X-ray measure or detect?
Will I feel any pain or discomfort during the procedure?
How often should I get a chest X-ray?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy