一位病人安排做 MRI 檢查。護理師應優先向放射技師回報哪項評估發現?
A client is scheduled for an MRI. Which assessment finding is most important for the nurse to report to the technician?
- AThe client is allergic to shellfish病人對貝類過敏
- BThe client has a persistent cough病人有持續性咳嗽
- CThe client has a cardiac pacemaker✓ 正解病人裝有心臟節律器
- DThe client has a history of claustrophobia病人有幽閉恐懼症病史
磁振造影(Magnetic Resonance Imaging, MRI)是一種利用強大磁場和無線電波進行醫學影像檢查的技術。由於其操作原理,任何含有鐵磁性物質的植入物或身體異物都可能在磁場中產生危險,例如發熱、移位或功能異常,可能對病人造成嚴重傷害甚至危及生命。因此,在病人進行 MRI 檢查前,護理師必須進行詳盡的篩查(screening),並將任何潛在的禁忌症(contraindications)或高風險發現立即回報給放射技師或醫師。這是確保病人安全、避免醫療事故的最高優先事項。
A cardiac pacemaker is an absolute contraindication for MRI because the strong magnetic field can cause device malfunction or displacement, posing a life-threatening risk. This safety concern takes precedence over other findings such as allergies or claustrophobia.
MRI 檢查前的安全篩查和禁忌症評估在台灣和美國的臨床實踐中是高度一致的。對於含鐵磁性植入物(如心臟節律器、某些動脈瘤夾、人工耳蝸)的病人,兩地都會將其列為絕對或相對禁忌症,並要求嚴格篩查。確保病人無金屬異物進入 MRI 區域是國際公認的醫療安全標準。