本橫斷面相關性研究旨在觀察護理人員氣虛症狀的發生情形，進一步探討氣虛症狀與自律神經及基礎代謝率的關係。我們以中部某區域教學醫院之護理人員爲研究對象，總共收案八十位。每位受試者於簽署受試同意書後，接受結構式氣虛症狀問卷調查，並同時接受血壓及自律神經功能量檢測。我們以SPSS12.0套裝軟體對各種指標數據進行統治分析。結果顯示，護理人員氣虛症狀總分最高爲33分，最低爲10分，其中以疲倦乏力(46.3%)、沒有精神(33.8%)、身體沒有力氣(31.3%)爲出現頻率最高且最嚴重的前三項症狀。氣虛症狀總分與基礎代謝率及心率變異數無統計學上的相關，但是工作年資會負向影響心率變異數(HRV)，包括：SDANN及總能量(TP)。隨著工作年資增加，SDANN及TP反而降低。另一方面，工作年資對HRV中的低頻(LF)及高頻(HF)則無一致的影響。HF以工作年資少淤1年的護理人員爲最高，但LF在7組不同工作年資的護理人員並沒有顯著差異。輪班者之基礎代謝率及HRV（包括：TP、LF及HF）都顯著高於非輪班者。本研究結果顯示，超過三分之一的護理人員有氣虛的相關症狀，但其嚴重度與HRV沒有統計學上相關。工作年資及是否輪班可能影響HRV，但其機轉仍須進一步探討。

The aims of this study were to evaluate the distribution of Qi-deficiency (QD) related symptoms in nurse staffs, and to analyze the relationships of total Qi-deficiency score (TQDS) with autonomic nervous systems (ANS) and basal metabolic rate (BMR). Eighty nurses in a teaching hospital in middle Taiwan were involved in this study. After signature of informed consent, each subject performed a structure questionnaire related to the symptoms of QD, and was measured blood pressure and ANS function simultaneously. We used SPSS12.0 coverall software to perform Statistics. The results revealed that, the highest TQDS in nurses was 33 points and the lowest was 10 points. The most 3 frequent and severe QD-related symptoms/signs in nurses were fatigue with lower energy (46.3%), less active (33.8%), and down-and-out of body (31.3%). TQDS had no significant correlation with HRV or BMR. However, job year had a significantly negative effects on HRV, including SDANN and total power (TP). The longer job year, the nurses had lower SDANN and TP. There was no identical influence of job year on low frequency power (LF) and high frequency power (HF) in HRV. The highest HF was found in the nurses with job year less than one year, but no evident difference was found in LF among 7 groups with different job years. The nurses on shift duty had higher BMR and HRV including TP, LF and HF than those without shift duty. The above results suggest that, more than one third of nurses had QD-related symptoms, which were not correlated with HRV. Job year and shift duty may influence the HRV of nurses, but the mechanism is necessary to be further studied.