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How to Understand Workflow in Your Automated Laboratory, Then Act on Opportunities to Boost
Productivity, Slash TAT, and Improve Quality
Chris Christopher Csquared Global Solutions, LLC
1
Preface
• Lab Automation Market continues to grow • Shortage of Skilled Labor • Ability to Standardize Work, Reduce Errors, and
Achieve Predictable TAT’s
• Most often, lab’s do not achieve the full potential of Automation – WHY?
Technavio's analysts forecast the global laboratory automation market to grow at a CAGR of 5.48% over the period 2014-2019.
Global Laboratory Automation Market 2015-2019
In the face of rising demand and limited resources, Labs are compelled to work smarter…
2
Learning Objective:
1. Production Insights - Review the major operational differences before and after the installation of lab automation.
2. Optimization - Review the scope, process, and factors to consider to optimize workflows in an automated environment
3. Strategies - Explore potential solutions to common operational bottlenecks of automated tracks
Gain insights into how to maximize the performance of automated laboratories
Take Aways:
Ex: Free Standing Instruments
Ex: Track Connected
Instruments
Pre Lab Automation Management Challenges
• Extremely difficult to Achieve Standard Work and Guarantee TAT’s
• Highly dependent upon Labor to meet Lab Goals for Quality and TAT
• Difficult to Minimize Waste • # Specimen Touches • Unpredictable Wait Times • Lost Instrument Throughput Capacity due
to Loading Variations • Specimen Transportation varies on Type
and Priority of Orders • Justifying New Capital Investments
Operations • Manual specimen receipt, sorting, aliquoting,
routing, and storing • Workflows organized by Department & Benches • Heavy Reliance on Instruments to Increase
Productivity
4
Post Lab Automation Management Challenges
• Extremely difficult to Achieve a Balanced System (Maximum Efficiency)
• How to manage STATs • Staffing -- New Job Description Requirements
• Line Manager • Lean Water Spider
• What is the best time for PMs? Backup? • What happens IF…? • Justifying New Capital Investments
Operations • Automated specimen receipt, sorting, routing,
aliquoting, and storage • Organized by Automation Line & Non-Connected
Instrument / Benches • Heavy Reliance on Automation to Increase
Productivity • Consolidation of Workstations
5
Recapping Sample Archiving Sample Location & Retrieval Sample Disposal Sendouts
Auto Verification Result Review & Validation Decision Support Result Reporting
Specimen Collection Sample Sorting Physical Sample Transport Centrifugation Decapping
Order Entry Accessioning Equipment Monitoring Remote Service
Key Considerations that Impact Production
6
Varies by Hour of Day
Day 1 Day 2
1) Data Analytics -- Factors to Consider for Optimization • Frequency (arrival in lab) • Test Orders (chemistry, IA, hematology, coag, etc.) • Test Density (# tests per tube) • Priority
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2) Layout -- Factors to Consider for Optimization • # of Sample Touches (potential errors) • Configuration of Modules • # and Type of Instruments (capacity) • Instrument Menu Configuration • Specimen Travel Distance (waste) • Priority Management (STATs) • Staffing Requirements • Turn around Times • Space (T-Turns, U-Turns)
8
3) Throughput Analysis -- Factors to Consider for Optimization • Instruments - Tube and Test Throughput • Changes to Instrument Throughput when connected to a track • Test Mix (ISE, photometric, etc.) • Module Throughput
9
4) System Constraints -- Factors to Consider for Optimization • Sample Processing (Labor) • Sample Routing • Instrument Buffer Size • Throughput (Instruments & Modules) • Repeat Tests • Results Validation • Track Design / Instrument Connectivity • Tube Type
10
5) Labor -- Factors to Consider for Optimization • Staffing by Function • Demand • Required Skill Sets • Line Management • Flow Control
11
Scope: Boost Productivity, Slash Cost, & Improve Quality
Focus: Maximize the Productivity of the Automation Line 1. Pre Visit Data Analytics – Collect & Process Data from LIS, Middle ware, &
Track 2. Observations – Monitor Flow & Processing; Interview Staff & Vendor Support
Personnel 3. Production Analysis – Study Sample Throughput, Utilization, Capacity, Turn
Around Time; Identify System Constraints 4. Operations – Explore Configurations, Setup, Staffing, etc. 5. Findings & Recommendations – Present to Leadership 6. Implementation and Validation – Confirmation of Changes
Six Step Process
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Executive Introduction &
Overview
Remote Data Analysis
Staff Interviews
Vendor Interviews
DAY I - Operational Assessment
14
Data Analysis
1st Pass Findings & Recommendations
Day 2 – Observations & Data Collection
Day 3 Preliminary
Report
Validation & Final Report
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Optimization Goals & Deliverables
Management’s Expectations • Identify actions that will reduce cost and become
more efficient • Determine if the instruments and automation are
used in the correct way • Evaluate repeats, maintenance, and Quality Control
processes • Determine what we should be asking ourselves right
now concerning the future
Focus:
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Monday Tuesday Wednesday Thursday Hour of Day
Midnight Midnight Midnight
0
50
100
150
200
250
300
350
400
450
12 14 16 18 20 22 0 2 4 6 8 10 12 14 16 18 20 22 0 2 4 6 8 10 12 14 16 18 20 22 0 2 4 6 8 10 12 14
Immulite 2000-2
ADVIA 1800-2
ADVIA 1800-1
Centaur-2
Centaur-1
Tubes Processed by Hour on the Track
Online Instruments
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Data Analytics “Automation Line Error Analysis”
Advia 1800-1 What might be impacting Production / Throughput?
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Data Analytics “Automation Line Error Analysis”
Advia 1800-1 What might be impacting Production / Throughput? * WARNING * Data by itself IS NOT conclusive in
Identifying Problems, Constraints, or Opportunities in a complex environment.
Data must be used in conjunction with observations and interviews in order to
provide a clear picture of operations.
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Best Practices Observed
Instrument Maintenance – instruments on the line were well maintained using a dedicated technical team member to provide all maintenance activities, reagent preparation, calibration, and quality control. Specimen Management – full utilization of the refrigerated storage and retrieval system. Extra collection tubes were managed with a software program designed to simplify the storage and retrieval of specimens as needed. Team Work – Throughout the entire production process, there were numerous examples of workers helping others in time of need to clear backlogs or to increase throughput. The staff within Specimen Processing was exemplary in team work.
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Flow of Specimens • Tube Entry Points on the Line
• Priority Load – Single or Multiple Tubes • Batch Load (Bulk Input Module)
• Automated specimen receipt, sorting, routing, aliquoting, and storage
• Organized by Connected & Non-Connected Instruments
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0
50
100
150
200
250
300
350
400
450
11 13 15 17 19 21 23 1 3 5 7 9 11 13 15 17 19 21 23 1 3 5 7 9 11 13 15 17 19 21 23 1 3 5 7 9
Immulite 2000-2
ADVIA 1800-2
ADVIA 1800-1
Centaur-2
Centaur-1
Events Impacting Production
Day 1 Day 2 Day 3 Day 4
Instruments on Track
Hour of Day
Midnight Midnight Midnight
Chem-1 Off Line due to Reagent Additions IA-1 down 22
LIS Issue
Findings
Pre-Analytical Analytical Post-
Analytical
1420 1240
8985
8606
194
20,444 Total Test Results Two-Day Average by Instrument
Centaur-1
Centaur-2
ADVIA 1800-1
ADVIA 1800-2
Immulite 2000-2
2.1 1.9
14.4
12.2
1.6
Test Density
Centaur-1
Centaur-2
ADVIA 1800-1
ADVIA 1800-2
Immulite 2000-2
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Pre-Analytical Analytical Post-Analytical Nov 9 – 1,260 Accessions
Observations: • Overall staff quality is very high with clear evidence of team
work • Skill sets for the Order Entry and Sample Processing differ • Timing cycles for the two processes can vary widely creating
large queues (Order Entry cycles take less time on average than processing depending upon type of samples received, tests ordered, etc.)
• Pickup of tubes from processing for the Automation Line was inconsistent and not predictable
Findings
Specimen Receipt, Order Entry, & Processing
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Findings
Pre-Analytical Analytical Post-Analytical Specimen Receipt, Order Entry, & Processing
Order Entry Specimen Processing 1) Removal of bag contents (sample tubes &
test requests) 2) Enter patient demographics into LIS 3) Perform first quality check - Match name
on tube with test request 4) Enter tests ordered 5) Stamp request with individual who is
performing this step 6) Print barcode labels 7) Place labels in bag with tubes 8) Place bag into box designated for
Processing
1) Go and pick up box from holding rack (may pick up several boxes at one time)
2) Empty bag with tubes and labels 3) Place barcode label on request and stamp
request with individual doing the processing
4) Place labels on tubes 5) Pour off urines 6) Make aliquots as needed 7) Print extra labels if needed 8) Place tubes in racks at processing bench
Day 2 – 1,326 Accessions Day 1 – 1,260 Accessions
Orders are grouped into Batches of 20 for processing
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Findings
Pre-Analytical Analytical Post-Analytical Nov 9 – 1,260 Accessions
Specimen Receipt, Order Entry, & Processing
Samples that are ready for the Analytical Phase are transported by two primary modes:
• Priority Orders are carried by the Processor to the appropriate workstation
• Routine Orders for the Automation Line are picked up by a technical staff who transports the racks to a workspace near the I/O module. Sample tubes are then picked up, inspected, and placed into Automation racks. The Automation racks are then place into the I/O module for analysis.
26
Pre-Analytical Analytical Post-Analytical Nov 9 – 1,260 Accessions
Recommendations Specimen Receipt, Order Entry, & Processing
Pre-analytical Objectives - streamline front-end process to reduce wait times, establish continuous flow of specimens, and increase production output of the Aptio Automation line. 1. Enhance Cycle Time -- Reconfigure Specimen Processing into workstations
consisting of “Two-person Teams” with each team fully processing one requisition at a time (piece work) including quality checks
2. Improve Efficiency -- Reduce the number of Sample Touches by loading the chemistry I/A tubes designated for the Automation Line into the Automation Racks
3. Improve Productivity – Shift Aliquoting to the Track Automated Aliquoter. Place hematology tubes into a bucket that can be emptied directly into the Bulk Input Module
4. Enhance Labor Allocation -- Use a non-technical staff as a Lean “Water Spider” to manage, transport, load, and unload the Automation Racks with the objective to create a continuous flow of specimens
Justifications: • Faster specimen ordering and processing • Enables team building and rotation • Significantly reduces manual aliquoting and potential errors • Improved productivity and use of technical resources 27
Findings
Pre-Analytical Analytical Post-Analytical Production Summary ~ 2,400 tubes are received per business day that could be processed on the Automation line.
For the 24 hour period • 1,105 tubes routed to chemistry • 1,031 tubes routed to immunoassay
Peak Hour Production: ~ 400 Tubes on the Track ~ 100 Tubes on Hematology
Peak Hour Summary
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Findings
Pre-Analytical Analytical Post-Analytical Production Summary Peak Capacity Analysis
Chemistry Peak Hour:
183 Tubes Immunochemistry Peak Hour:
170 Tubes Hematology Peak Hour:
161 Tubes
Throughput and Capacity by Category
29
Findings
Pre-Analytical Analytical Post-Analytical Production Summary Load Balancing Good
Tube Production by Instrument
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Findings
Pre-Analytical Analytical Post-Analytical
• Sampling Rate - Maximum number of tubes that can be sampled per hour
• Test Density – Number of tests ordered per tube
• Mix and Type of Test Ordered – one, two, three, four or more cycle times per test
• Instrument configuration – auto repeat and auto dilution features
Constraints that Impact Production
Production Summary Capacity to Meet Workload Good +
Test Production and Utilization by Instrument
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Findings
Pre-Analytical Analytical Post-Analytical Production Summary Capacity to Meet Workload Good
IA #1 Peak Hour: ~185 Tests
IA #1 Peak Utilization: 78%
IA #2 Peak Hour: ~180 Tests
IA #2 Peak Utilization: 79%
High Risk of Not Meeting TAT Goal if either IA is Off Line for >3 hours
Test Production and Utilization by Instrument
32
Findings
Pre-Analytical Analytical Post-Analytical Production Summary Errors can have a Huge Impact on Production
Error Analysis
ResultDay 11
Count of ErrorColorCode Column Labels Row Labels Green Pink Red Red+ Yellow Grand Total A00-1 1 50 284 335 A00-2 1 169 155 325 A20 LAS-1 2 2 A20 LAS-2 2 2 A20 LAS-3 2 2 Aliquoter-1 1 34 35 Bulk IO-1 1 1 C-1 4 662 666 C-2 4 176 180 C-3 2 2 C-1 13 1 14 Decapper-1 14 1 7 22 Desealer-1 49 49 Dream Process Controller-1 3 3 Dream Process Controller-2 85 2 87 Immulite 2000-1 1 2 3 Immulite 2000-2 32 6 139 177 IO Module-1 150 1 1990 2141 Power Supply Controller-1 1 1 Recapper-1 2 2 RSM-1 40 1 29 70 Sealer-1 74 64 76 214 Tube Buffer Module-1 1 1 Tube Buffer Module-2 1 1 Tube Buffer Module-3 3 3 Tube Buffer Module-4 3 3 Grand Total 414 1 313 1 3612 4341
Observations: • Barcode Labels not secured to Tube • Samples making multiple laps around track • Instrument taken off line • Multiple tubes with same barcode loaded on track • Tube missed gate • Output Rack Full • Front Loading Instruments • Instruments out of Reagents
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Row Labels Green Pink Red Red+ Yellow Foil Lost 34 33 Emptying Queue 10 Overdue Carrier 5 Tip Drop Failure 5 Analyzer Red State during Sampling Request 2 1 Communication Error during Sampling Request 2 Pick Failure Not Reported 2 Sample Complete Message Not Arrived 2 Unknown Test Code 579 Output Rack Missing or Full 292 Sampling Not Successful 188 Test Not Aspirated 123 Sample Tube Not Processed 52 Error During Sampling 41 Reagent or Consumable Empty (Analyzer Error 01) 41 No Sealer Available 40 Unreadable Sample ID 39 No Ancillary (Analyzer Error 03) 33 Reagent or Consumable Empty 33 Test Not Aspirated;FolateBA 31 Sorting Rack Missing or Full 26 No Mitigation Reagent (Analyzer Error 06) 25 Empty Secondary Sample Tube Due To Clot Detected In Primary Sample Tube 20 Test Not Aspirated;VitD 20 Tube Not Detected 20 Foil To Waste Check Failed 19 No Request or SID Mismatch (Analyzer Error 4E) 18 Low Mitigation Reagent (Analyzer Error 07) 17 Empty Secondary Sample Tube Due To Insufficient Fluid In Primary Sample Tube 16 No Aliquoter Available 15 Clot Detected (Analyzer Error 56) 13
Findings
Pre-Analytical Analytical Post-Analytical Production Summary Errors can have a Huge Impact on Production
Error Analysis
Many Errors are Preventable
Prevention Tactics: 1) Training 2) Line Management 34
Recommendations
Pre-Analytical Analytical Post-Analytical
Automation Configuration, Setup, and Operation
ACTION Justifications Establish a LINE Manager or coordinator to oversee all production on the Automation
Establishes continuous flow -- Faster response times for managing issues that would impede production -- Minimizes batching
Connect Hematology to the Automation Line Increased productively by ~ 1 FTE -- Reduces labor requirements to load, calibrate, and run QC
Add a 3rd IA to the Line Increases line capacity by minimizing today’s IA constraint -- Provides a backup for the six-year old Centaurs that are on the line -- Improves overall system reliability
Continue the switching of Reagents to Concentrated Reagents Maximizes Instrument Production -- Reduces price of service
Upgrade Chemistry Instruments Maximizes uptime of the automation
Increase size of Instrument Buffer to 10 Minimizes Tube Travel on Track
Establish new procedures that minimize the number of repeats on the line. Ex: automate Folate dilutions
Maximizes Instrument Production
35
Findings
Pre-Analytical Analytical Post-Analytical
Auto Verification of Test Results
Observations: • Presently, the Middleware is used as a ‘pass through’ for
Test Results for chemistry, immunochemistry, and hematology
• ~ 0.7 FTE is required to manage verification of test results
Opportunities: Fast Track to Auto Verification 1. Use Middleware rules to perform Auto Verification for
connected instruments 2. Establish rules within the LIS to all ‘pass through’ for Test
Results for chemistry, immunochemistry, and hematology that meet Auto Verification Rules
36
Findings
Pre-Analytical Analytical Post-Analytical
Sample Storage
Observations: • Presently, the Online Automation Refrigerated
Storage Module is used to manage tube storage for Chemistry and Immunochemistry tubes
• The Capacity of the RSM is ~15,000 tubes • The RSM significantly reduces the # of touches which
in turn, reduces labor and potential errors • Chemistry Tubes are stored up to 14 days
37
38
1. Established Continuous Flow – Workload completed ~ 2 hours faster 2. Improved Efficiency -- Reduced the overall number of Sample Touches by ~1
(lowering labor requirements and potential errors) 3. Improved Productivity – Reduced FTEs by a net of 1 .7 4. Enhanced Labor Allocation – Better utilization of Technical and Non-technical
staff 5. Increased User Knowledge – Use of Online Automation Training 6. Increased Capacity of IA -- with 3rd IA instrument
Learning Objective:
1. Production Insights - Review the major operational differences before and after the installation of lab automation.
2. Optimization - Review the scope, process, and requirements to optimize workflows in an automated environment
3. Strategies - Explore potential solutions to common operational bottlenecks of automated tracks
Gain insights into how to maximize the performance of automated laboratories
Take Aways:
In Summary for This Session