A chest X-ray may be ordered when a person's symptoms include a persistent cough, coughing up blood, chest pain, a chest injury, or difficulty in breathing. The test is also used when tuberculosis, lung cancer, or other chest or lung disease is suspected. A serial chest X-ray (repeated or sequential) may be used to evaluate changes (for example, an increase in the size of an abnormality) found on a previous chest X-ray.
Risks of chest X-raysThere is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is very low compared with the benefits. Pregnant women and children are more sensitive to the risks of the X-ray. Chest X-rays are generally avoided during the 1st and 2nd trimesters of pregnancy (a trimester is a period of 3 months).
Related entry chest CT scan
Related categories HEALTH AND DISEASE
• MEDICAL TESTS
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