譫妄為住院老人常見臨床合併症，不僅造成跌倒、自拔管路等意外傷害，使住院天數增加，亦提高死亡率。本研究探討由加護病房轉出住院老人譫妄發生率及預防譫妄措施之成效，採實驗性研究設計，以南部某醫學中心，65歲以上為收案對象，樣本數各30位。措施為利用輔助用具，協助個案出病室外，到院內固定公共場所，並與個案討論家人、住院主要照顧者及相關醫護人員姓名、稱謂、關係、日期、時間點、天氣狀況、所在處、此次就醫過程及當天時事，每次30分鐘以上，以促進定向感等認知能力，持續至轉出後第14天。
結果顯示譫妄發生個案有29位 (介入組15位/控制組14位)，譫妄發生率為48.3%。介入組持續發生天數顯著低於控制組(2.13vs 3.29，t= -2.74, p=.011) ，譫妄持續發生天數<2天個案，介入組顯著多於控制組，X2=5.855( p=.016)。大多數在轉出當天就發生譫妄(96.9%)，多數持續時間2天 (44.8%, 13/29)，最長為7天（控制組），兩組皆無新增譫妄個案，無法推論預防譫妄措施是否更能降低由加護病房轉出老年病人譫妄發生率。兩組皆無重複個案發生。再回轉加護病房方面，二組各有4人，皆因疾病因素導致，無統計顯著差異。
臨床應持續評估及執行認知訓練，並幫助老年病人到公共區域活動，增加與外界接觸及環境刺激，以降低譫妄持續發生天數。

Delirium is a common complication among hospitalized elderly. Delirium may not only lead to the accident of falling or self-extubation, but also increase the length of stay and mortality rate. The purpose of study was to investigate the incidence of delirium and to test the effects of a prevent delirium intervention in elderly during post-intensive care. Elderly who were older than 65 years and transferred from intensive care unit (ICU) to the general wards were randomly assigned to experimental and control group. The experimental group (n= 30) was provided aids enable to move to public place and to enhance cognition training (introduction of care-team members or caregiver, and discussion daily schedule and current events, reorient the surrounding) 30 minutes per day for14 days. The control group (n= 30) was provided the routine care.
The overall incidence of delirium was 48.3 % (intervention group n=15, control group n=14). Almost of them were diagnosed on the day transferred (96.6%). Most delirium duration was 2 days (44.8%, 13/29); the longest duration was 7days (control group). The duration of delirium was significantly lower in the intervention group, compared to controls (2.13 vs. 3.29days, respectively, P=.011).
The findings of study suggest that nursing intervention is effective to decrease duration of delirium among the elderly in post-intensive care.

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