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Optimizing X-ray Services: Throughput and Waiting Time Analysis

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This study analyzes the efficiency of X-ray service with four examination rooms, addressing a daily demand of 65 patients. The average time spent in the exam room is 11 minutes, with an additional 13 minutes of waiting time. Current calculations yield an examination rate of 8.125 patients per hour, translating to 2.0312 patients per room per hour. To enhance service, it is suggested to either improve examination time to 2.39 minutes per patient or increase the number of rooms. The calculations are preliminary and do not yet address potential bottlenecks.

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Optimizing X-ray Services: Throughput and Waiting Time Analysis

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  1. QueueStudy Xray case

  2. Parameters • Nº ofrooms: 4 • Daily demand: 65 • Average time spend in examroom: 11 min • Average time waiting: 13 min • Uptime: 8 hrs

  3. Formulas • Considering that your daily demand is 65 calls, you have 8.125 patients examined per hour, thus 2. 0312 patients examined per hour/room. N = demand A = Time spend in Xray exam E = Time spend waiting X = Arrival rate Ns = Number of rooms (4) Y = arrival rate per room

  4. Arrival Rate

  5. Service time Reduceyourwait time to zero and improve yourservice time to 2,39 minutes. Withthatyouwon’tneedtomakeanychanges.

  6. Numberofrooms

  7. Conclusion • Solution 1) Maintain the number of rooms and improve your time to 2,39 minutes; • Acquire more 6 rooms to equalize the arrival rate with service average time. OBS.:The calculation to find the ideal number of rooms are not complete. (It does not explore the the bottleneck)

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