Pratt M L, Grindon A J
Transfusion. 1982 May-Jun;22(3):234-7. doi: 10.1046/j.1537-2995.1982.22382224948.x.
A computer simulation model was used to study work flow and queueing problems in blood collection. Donor scheduling strategies, such as stream and block arrivals, were compared with random arrival at a constant hourly rate. Controlling donor queueing required keeping donor arrivals from exceeding the system capacity, rather than using any one type of scheduling strategy. However, widely uneven arrivals compared to even arrivals at the same input level caused protracted queueing. Because men have a shorter average phlebotomy processing time, time can be saved in some situations by scheduling mostly men at the beginning of a drive. Nursing utilization appears optimal at donor arrival rates at or near system capacity. Techniques may be available to modify the collection system to ameliorate or prevent queueing when donor arrivals appear to be excessive.
采用计算机模拟模型研究采血过程中的工作流程和排队问题。将诸如流水式和分组式到达等献血者调度策略与每小时固定速率的随机到达进行了比较。控制献血者排队需要防止献血者到达人数超过系统容量，而不是采用任何一种调度策略。然而，在相同输入水平下，与均匀到达相比，广泛不均匀的到达导致了长时间的排队。由于男性的平均采血处理时间较短，在某些情况下，通过在采血活动开始时主要安排男性献血者可以节省时间。在献血者到达率达到或接近系统容量时，护士的利用率似乎是最佳的。当献血者到达人数似乎过多时，可能有技术手段来修改采血系统以改善或防止排队。
