Clips manufactured before 1995 require which of the following to ensure safety?

Clips manufactured before 1995 require pretesting or a review of previous MRI images to ensure safety because these earlier clips might not have established compatibility with the magnetic fields and radiofrequency waves produced by MRI machines. The materials and designs of these clips may pose a risk as they might either heat up or move within the magnetic field, potentially leading to complications or injury during the MRI procedure.

Conducting a pretest involves ensuring that the clips do not respond negatively to the magnetic environment, which is essential for patient safety. Reviewing previous MRI images can also provide insight into how the clips have reacted in past imaging scenarios, allowing for better-informed decisions regarding subsequent MRIs.

This approach helps identify and mitigate risks associated with older medical implants, which may lack the safety assurances provided by newer technologies that include research and safety evaluations specifically for MRI compatibility.