Compare using X-rays to image a broken bone with using ultrasound. Explain one benefit, one risk or limitation, and how exposure can be reduced.

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X-rays give strong bone contrast but are ionising; ultrasound is non-ionising but is less suitable through bone. Use only justified X-ray exposures, shielding and the lowest practical dose. X-rays pass through soft tissue more readily than bone, producing a useful fracture image. Ionising radiation can damage cells, so cumulative exposure matters. Ultrasound avoids ionising radiation but bone reflects or blocks it, limiting internal bone imaging. Apply time, distance, shielding and dose optimisation appropriate to the procedure.

Choose radiation responsibly

Compare using X-rays to image a broken bone with using ultrasound. Explain one benefit, one risk or limitation, and how exposure can be reduced.

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