護理師協助病人進行 MRI 檢查。下列哪些防護措施是必要的？（選所有適合的）
A nurse is preparing a client for an MRI. Which safety precautions are mandatory? (Select all that apply.)
- ARemove all metallic objects from the client✓ 正解移除病人身上的所有金屬物品
- BVerify the presence of any implants (e.g., pacemakers)✓ 正解確認是否有植入物（例如：心臟節律器）
- CProvide ear protection due to noise✓ 正解提供耳部防護以應對噪音
- DEnsure the client has an IV contrast agent pre-ordered確保已預先開立靜脈注射對比劑
- ECheck the client's weight for the table limit✓ 正解確認病人體重未超過床墊承重限制
MRI檢查涉及強大靜磁場，任何金屬物體均可能成為拋射物造成嚴重傷害，或因金屬加熱導致灼傷，甚至干擾影像品質。護理師需執行嚴格的安全篩檢，包含確認植入物（如心律調節器、人工耳蝸等）是否具備MRI相容性，並確認病人體重是否在儀器承載範圍內以防設備損壞。此外，MRI運作時的高頻噪音會對聽力造成損害，必須提供保護措施。
MRI involves a powerful static magnetic field, and any metallic object can become a projectile capable of causing serious injury, can heat up and cause burns, or can interfere with image quality. The nurse must perform strict safety screening, including confirming whether implants (such as pacemakers and cochlear implants) are MRI-compatible and verifying that the client's weight is within the scanner's load limit to prevent equipment damage. In addition, the high-frequency noise generated during MRI operation can damage hearing, so ear protection is mandatory.
在美國，MRI安全篩檢流程（MRI Screening Form）極為嚴謹且具備法律效力，護理師通常需親自確認植入裝置的型號卡（Device ID card）。