一位患有慢性腎臟病(CKD)的病人預定進行靜脈腎盂攝影(IVP)。護理師在檢查前最優先執行的措施為何?
A client with a history of chronic kidney disease (CKD) is scheduled for an intravenous pyelogram (IVP). Which action is most important for the nurse to perform prior to the procedure?
- AAssess the client for a history of hypertension評估個案是否有高血壓病史
- BAdminister a prescribed laxative the evening before前一晚給予處方瀉藥
- CInstruct the client to remain NPO for 12 hours指示個案禁食 12 小時
- DReview the client's baseline creatinine level檢視個案的基線肌酸酐值正確答案
- D檢視個案的基線肌酸酐值
靜脈腎盂攝影(IVP)涉及使用碘顯影劑,這對腎功能受損的病人具有極高的顯影劑誘發性腎病(CIN)風險。核心概念是評估器官對診斷性檢查的耐受度。對於 CKD 病人,基線肌酸酐(Creatinine)和腎絲球過濾率(eGFR)是決定是否能安全施打顯影劑的關鍵指標。護理師的臨床推理必須放在「減少風險潛能」上,即在暴露於危險因子(顯影劑)之前,先確認病人的易感狀態。雖然 NPO(C)和清腸(B)是 IVP 的標準準備步驟(為了讓影像更清晰),但在安全原則下,預防急性腎損傷(AKI)的重要性遠高於影像品質。如果肌酸酐過高,護理師必須主動與醫療團隊溝通,考慮取消檢查或採取預防性輸液措施。高血壓(A)雖與 CKD 相關,但不是 IVP 檢查前的直接禁忌評估重點。
- A評估個案是否有高血壓病史
評估高血壓史固然重要,因為它反映了 CKD 的背景病史,但在進行含顯影劑檢查的當下,最直接威脅病人安全的因素是顯影劑對腎小管的毒性,而非血壓高低。
- B前一晚給予處方瀉藥
給予瀉藥是為了排除腸道氣體與糞便以利觀察腎臟構造,這屬於檢查品質的優化,但在護理安全順位中,生理風險評估(腎功能)必須排在技術準備之前。
- C指示個案禁食 12 小時
雖然 IVP 前通常會要求禁食以避免腸道內容物干擾影像,但對於 CKD 病人,維持適當的水份攝取比嚴格禁食更重要,以稀釋顯影劑並保護腎臟,因此 NPO 不是最優先的安全考量。
- D · 正確答案檢視個案的基線肌酸酐值
肌酸酐是評估腎功能的關鍵指標。顯影劑具有腎毒性,對已患有 CKD 的病人來說,若基線數值過高卻未採取保護措施,極易引發急性腎衰竭。這是降低風險潛能(Reduction of Risk Potential)的核心行動。
在美國,顯影劑安全檢查表(Contrast Safety Checklist)是由 RN 獨立核對的關鍵流程,若 Creatinine 超標,RN 有權暫緩檢查。在台灣,此類評估通常由放射科醫師與病房醫師共同決定,但護理師仍需負擔提醒與初步篩檢的責任。
English explanation
Intravenous pyelography (IVP) requires the use of iodinated contrast medium, which poses a very high risk of contrast-induced nephropathy (CIN) in patients with impaired renal function. The core concept is to assess an organ's tolerance to a diagnostic test. For patients with chronic kidney disease (CKD), baseline creatinine and estimated glomerular filtration rate (eGFR) are the key indicators for deciding whether contrast can be safely administered. The nurse's clinical reasoning must focus on "reducing risk potential"—that is, confirming the patient's susceptibility before exposure to the harmful agent (contrast). Although NPO status (C) and bowel cleansing (B) are standard preparations for IVP (to ensure clearer imaging), under the principle of safety, prevention of acute kidney injury (AKI) is far more important than image quality. If creatinine is too high, the nurse must proactively communicate with the medical team to consider canceling the test or instituting prophylactic hydration. Hypertension (A), although associated with CKD, is not the direct contraindication-related focus of pre-IVP assessment.
最近修訂:2026-10-05