From the Guidelines
X-ray imaging for a 3-month-old infant should only be performed when medically necessary, with careful consideration of the potential risks and benefits, and with adherence to guidelines for reducing radiation exposure that are age and size specific 1. When considering X-ray imaging for a 3-month-old infant, it is essential to weigh the potential benefits against the risks, particularly the risk of radiation exposure. The American College of Radiology and other organizations recommend following the ALARA principle (As Low As Reasonably Achievable) to minimize radiation exposure in pediatric patients 1.
Key Considerations for X-ray Imaging in Infants
- The decision to perform an X-ray should be based on a thorough clinical evaluation, and alternative diagnostic methods should be considered when possible.
- Proper immobilization techniques, such as swaddling or gentle restraint, should be used to prevent motion artifacts and ensure diagnostic quality.
- Exposure settings should be adjusted for the infant's small size, using lower kVp and mAs values than for adults.
- Gonadal shielding should be used when the reproductive organs are within or near the primary beam, unless it would obscure important diagnostic information.
- Multiple views should be limited to only those necessary for diagnosis.
Guidelines for Reducing Radiation Exposure
- The radiology department should have guidelines for reducing radiation exposure that are age and size specific 1.
- The radiology capability of hospitals may vary, but it is essential to ensure that the hospital's radiology capability meets the needs of the children in the community it serves 1.
- A process should be established for the referral of children to appropriate facilities for radiologic procedures that exceed the capability of the hospital 1.
Clinical Context and Decision-Making
- In the context of community-acquired pneumonia, the British Thoracic Society guidelines suggest that a chest radiograph should be undertaken in young children with a pyrexia of unknown origin, but only when signs of respiratory distress are present in febrile infants under 3 months 1.
- The guidelines also recommend that routine use of chest radiography is not beneficial in ambulatory children aged over 2 months with acute lower respiratory infection, and that follow-up radiographs are only necessary in specific cases, such as lobar collapse or apparent round pneumonia 1.
From the Research
Guidelines for Performing an X-ray on a 3-month-old Infant
- The decision to perform an X-ray on a 3-month-old infant should be based on clinical judgment and the presence of respiratory distress or other symptoms that may indicate a need for imaging [(2,3)].
- In febrile infants less than 3 months old, a chest radiograph should only be obtained when signs of respiratory distress are present 3.
- The American Academy of Pediatrics recommends that chest X-rays be used judiciously in infants and children, and that alternative diagnostic methods be considered when possible [no direct reference, but implied by (4)].
- Nurses play a vital role in ensuring that X-rays are performed in a safe and timely manner, and that children are supported and positioned appropriately to obtain the best quality images 4.
Indications for Chest X-rays in Infants
- Chest X-rays may be indicated in infants with suspected pneumonia, pneumothorax, or foreign body aspiration or ingestion 4.
- They may also be requested as part of a skeletal survey or to confirm the position of central and umbilical lines, as well as nasogastric tubes 4.
- In cases where a lower respiratory tract infection is suspected, a chest X-ray may be performed to confirm the diagnosis and guide treatment [(5,6)].
Considerations for X-ray Use in Infants
- The use of X-rays in infants should be carefully considered, as they are more susceptible to the effects of radiation than adults [no direct reference].
- Alternative diagnostic methods, such as clinical examination and laboratory tests, should be considered before ordering an X-ray [(5,6)].
- The results of an X-ray should be interpreted in the context of the infant's clinical presentation and medical history [(2,3,4)].