Consider an orthopedist's office all arriving patients first check in at a reception area where they fill
Question:
Consider an orthopedist's office all arriving patients first check in at a reception area where they fill out the necessary paperwork. On average, it takes 10 minutes to complete check-in and there are four receptionists working at the office. Then the patients are seen by a doctor. An average exam takes 30 minutes to complete and there are ten doctors working at the office. 40% of the patients do not need further evaluation after the exam and proceed to the reception area for check out. The remaining 60% require X-rays. X-rays are taken by the X-ray technician. It takes on average 20 minutes to process a patient at the X-ray machine and there are three X-ray technicians and three X-ray machines. Once the X-rays are complete, the patient is seen by a doctor again who finalizes the diagnosis by looking at the X-ray. It takes on average 22 minutes for the doctor to evaluate the X-ray and finalize the diagnosis after which the patient goes to the reception area for check out. It takes 5 minutes for a receptionist to check a patient out.
Now assume that after evaluating the X-rays, the orthopedist rejects some of them because their contrast index is outside the specified tolerance limits where the lower and upper tolerance limits are set at 1.45 and 1.60 respectively. The average contrast index for X-ray machines at the office is 1.50 and the standard deviation is 0.05. Compute the percentage of X-rays that will be rejected by the doctors?
Managing Business Process Flows Principles of Operations Management
ISBN: 978-0136036371
3rd edition
Authors: Ravi Anupindi, Sunil Chopra, Sudhakar Deshmukh, Jan Van Mieg