Methodist Dallas Medical Center Kyle Chester Kristin Evanto Emily Gray.

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Presentation transcript:

Methodist Dallas Medical Center Kyle Chester Kristin Evanto Emily Gray

Methodist Dallas Medical Center “Methodist: Where Life Shines Bright” Problem Description: –Long lab patient wait times due to: Patients must fast before their lab tests and rush to hospital in the early morning Monday and Tuesday mornings experience high wait times due to check-ups after weekend hospital visits Each doctor sends their patients to lab at a specific time each week

Approach Objectives: –Assess the entire Outpatient Services process as well as the lab department’s individual role. –Evaluate floor layout for possible redesign (chair arrangement, entrance and exit, etc.). –Investigate staffing in the lab department and determine whether the current staffing level is appropriate. –Observe arrival rates and the general arrival distribution of patients specific to hours within a given day. Goal: Reduce patient wait times in lab such that 95% of all patients experience wait times less than 15 minutes by identifying the source of the problem (staffing, systems, processes) and suggest alternatives.

Staff Technician Gwen Paula Fatima April – Director of Access Management Gennie – Manager of Outpatient Business Services Gwen – Lab Technician –Veteran employee Paula – Lab Technician –Newest employee Fatima – Lab Technician –Part-time employee

Outpatient Services Overview

Outpatient Services Lab Room Patients seated in chairs one and two can be serviced immediately.

Outpatient Services Lab Room Patients seated in chair three can also be immediately serviced.

Outpatient Services Lab Room Patients seated in chairs four and five must continue to wait for service until chairs one, two, or three become available. Therefore, these chairs represent additional waiting time not captured in MDMC’s current patient time logs.

Outpatient Services Lab Room A lab patient waits while technician Paula manually confirms his lab order in the computer.

Outpatient Services Lab Room Computer desk space and label printer

Outpatient Services Lab Room EKG test room

Current Lab Process

Patient Profile An average of 44 patients are seen by the Outpatient lab per day The average age of patients seen in Outpatient Registration Lab is 52 years old. 6% 27% 34%

Lab Tests “Stat” tests must be processed immediately The average “wait time” experienced is 18 minutes* * This wait time does not include the time patients spend waiting once inside the lab test room. TestAverage Service Time UrineN/A EKG (electrocardiogram) - diagnostic tool that measures and records the electrical activity of the heart 0:05:42 Blood draw0:04:17 Newborn Screening (“heel tap”) – blood draw for infants 0:09:26

Outpatient Services Test Procedures Blood draws typically require 1 to 5 tubes, but can be up to 25 depending on the procedure. The number of tubes does not change the service time for blood draws. Instead, the complexity of administrative work is increased.

Breakdown of Time Allocation in Lab

Four Major Task Categories

General Observations All lab patients, regardless of tests to be performed, wait in one queue –Radiology, urine, and “stat” patients have priority and move to the front of the queue Inventory orders for lab supplies are placed on Tuesdays The lab room is restocked and prepared for the following day at the end of each work day Technicians wash their hands after every three patients Health Hazard: newborn babies are in close quarters with adults with potential major health problems

Inefficiencies Observed Administrative prep work on computers (order checking) creates a bottleneck in the process Technicians leave the room frequently to fix administrative errors Every patient gets escorted back to lab by a Registration employee Unpredictable periods of patient arrivals due to walk-in policy –Mornings generally experience the highest volume Shigeo Shingo’s Wastes observed: Motion, Waiting, and Transportation/Over-Processing

Time Spent on Computer Delays Entire Lab

Inaccuracies in Reporting Currently the wait time is calculated at 18 minutes Including the time patient waits in servicing chairs (1, 2, and 3), wait time is underestimated by 27% Including the time patient waits in servicing chairs and time technician spends on administrative tasks (computer), wait time is underestimated by 43%

Recommendations Designate an administrative lab employee whose role is to process and confirm all patient orders prior to calling patients into the lab testing room. –This administrative lab employee will reduce the bottleneck currently experienced because they will be in a focused mindset and will not have to jump between alternating tasks. –Administrative employee will become more efficient in tasks because duties are consistent.

Proposed Lab Process

Outpatient Radiology Administrative Desk Outpatient Radiology services between 70 and 90 patients per day. This Outpatient Radiology desk currently operates under our recommended process in which lab technicians solely work on administrative order checking. Furthermore, patients receive additional customer satisfaction by watching technicians process their orders.

Recommendations Registration employees should ask patients if they want to be escorted back to the lab waiting room. –Asking this question provides patients with customer satisfaction and feelings of hospitality; however, it also allows the Registration employee to conserve potentially wasted labor.

Recommendations Allow patients to schedule lab appointments, specifically for EKG and Newborn Screening tests. –Allot a percentage of total patients that can schedule daily appointments; however, maintain walk-in procedure for patient convenience –Patient appointments are useful for planning purposes (i.e. Joint Academy) –Outpatient Services can partner with the Scheduling Department to achieve this recommendation

Patient Scheduling Can Smooth Demand

Recommendations Remove lab chairs four and five, which function as a third waiting area –This third waiting area under-represents MDMC’s patient wait time data. –This wait time will be removed with the addition of the administrative lab technician because orders will be processed prior to the patient entering the lab test room. Therefore, patients will be serviced immediately when called.

Queueing Theory A Poisson process models random events (such as a customer arrival) as emanating from a memoryless process. That is, the length of the time interval from the current event to the occurrence of the next event does not depend upon the time of occurrence of the last event. In the Poisson probability distribution, the observer records the number of events that occur in a time interval of fixed length. Even a queueing model based on the Poisson process that does a relatively poor job of mimicking detailed system performance can be useful because such models often give "worst-case" scenario evaluations. Also, the form of the solution of models based on the Poisson process often provides insight into the form of the solution to a queueing problem whose detailed behavior is poorly mimicked. As a result, queueing models are frequently modeled as Poisson processes through the use of the exponential distribution.

Queueing: M/M/s Arrival –Distribution = Poisson –Rate = λ = 4.33/hour Service –Distribution = Exponential –Current Service Rate µ = 2.58/hour –Recommended Service Time = 0:06:58(weighted average of test times) –Recommended Service Rate = µ = 8.61/hour s = number of servers –1, 2, or 3 depending on staffing schedule

Queueing (M/M/s): Current and Recommended Systems: CurrentProposed Number of Servers Utilization = ρ = λ÷µ P(no wait) = 1 - ρ Expected number of patients waiting = Lq Expected wait time = Wq min7.08 min min 1.44 min3.324 min0.05 min P(wait > 15 min) 4.169x10^(11)6.69x10^(-29) x10^(-43)2.1649x10^(-8)3.62x10^(-48)

Implementation Guidelines for Administrative Lab Employee Become familiar with Radiology’s administrative process Speak with Scheduling Department to incorporate lab patients into current scheduling Establish an administrative lab desk within the waiting area, similar to the Radiology desk –Added patient satisfaction because this employee can also serve as a contact point for agitated lab patients to check on their status Must communicate that administrative role is not a demotion. –Employees should be rotated daily between administrative position and technician to maintain proficiency in both skills.

Implementation Guidelines for Administrative Lab Employee No additional training of employees is required since all lab technicians currently use the computers –The employee assigned to administrative work will become proficient in the system due to repeated use Responsibilities of administrative lab employee: –Confirm patient orders –Print patient labels and prepare patient file –Answer patient questions –Order new inventory

Implementation Guidelines for Administrative Lab Employee We recommend starting this process with Gwen since she is the most familiar with the computer system; however, all three employees will rotate through this position. Administrative position is critical during peak times and rush hours and may not be necessary during downtime.

Questions?