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Six Sigma
Six Sigma, like Lean, is used to improve the quality and efficiency of operational processes. During the past decade, these process improvement techniques increasingly have been applied outside of the manufacturing sector, for example, in healthcare.
While Lean focuses on identifying ways to streamline processes and reduce waste, Six Sigma aims predominantly to make processes, such as those used in clinical laboratories and pathology group labs, more uniform and precise through the application of statistical methods.
Along with Lean, this process improvement technique has become popular with labs as a way to streamline laboratory processes, reduce costs, increase productivity, and improve quality in a time when labs are increasingly pressured by downward price trends for lab tests. At the same time, labs are able to increase value offered to “customers,” that is, patients.
The principles of a Six Sigma-based system were originally developed by Bill Smith of Motorola in 1986 as a way of eliminating defects in manufacturing, where a defect is understood to be a product or process that fails to meet customers’ expectations and requirements. The name refers to a quality level defined as the near-perfect defect rate of 3.4 defects per million opportunities. As a process improvement strategy, it gained much attention through its association with General Electric and its former CEO Jack Welsh.
Six Sigma also involves the training and certification of designated process specialists (called black belts, green belts, or other similar titles) within organizations to help guide Six Sigma improvement efforts. Other distinctive features include the expectation that process quality improvements be translated into financial metrics to assess value and the active involvement of top management in all initiatives.
Six Sigma is often combined with Lean management techniques to produce a methodology that relies on a collaborative team effort to improve performance by systematically removing waste (Lean) as well as defects, overproduction, waiting, non-utilized talent, transportation, inventory, motion and extra-processing (Six Sigma).
When Does Cost Cutting Affect a Lab’s Quality?
CEO SUMMARY: Many lab professionals note the irony that a laboratory so publicly committed to Six Sigma quality management methods is now identified with the single largest episode of systemic failure in lab test accuracy. Looking in from the outside, some pathologists suggest th…
Patient Retest Effort Is Extraordinary Event
By R. Lewis Dark | From the Volume XV No. 17 – December 22, 2008 Issue
IT IS NOT OFTEN THAT WE DEVOTE AN ENTIRE ISSUE TO A SINGLE TOPIC. The last single-topic special issue of THE DARK REPORT was almost exactly one year ago, when we provided the laboratory industry’s most detailed assessment of the Medicare Part B Competitive Bidding Demonstration Project, the details…
Retest Program Offers Useful Lessons for Labs
By Robert Michel | From the Volume XV No. 17 – December 22, 2008 Issue
CEO SUMMARY: Every day in every laboratory, there is the potential for some aspect of the testing process to go wrong and not be immediately detected. In such circumstances, the lab can then unknowingly report inaccurate test results to physicians and patients. That is why lab managers sh…
2008’s Top Ten Lab Stories Lacked Disruptive Impact
By Robert Michel | From the Volume XV No. 16 – December 01, 2008 Issue
CEO SUMMARY: For the first time in recent memory, a year has passed without major tumult or disruptive change in the laboratory industry. Our list of the Top Ten Most Important Stories of 2008 reflects a rather quiet year when compared to most years of this decade. Howeve…
LabCorp And Quest Report 3rd Quarter Financial Performance
By Robert Michel | From the Volume XV No. 15 – November 10, 2008 Issue
CEO Summary: In third quarter earnings reports, both national lab companies posted modest gains in specimen volume, revenue, and net profit. More telling is the relative quiet in the current market for lab testing services. With no obvious opportunities to fuel double-digit rates of growt…
Lean Six Sigma Takes Root in Labs & Hospitals
By R. Lewis Dark | From the Volume XV No. 13 – September 29, 2008 Issue
LAST WEEK, MORE THAN 300 ENTHUSIASTIC LAB AND HOSPITAL PROFESSIONALS from 11 different countries around the globe crowded into Atlanta for the Second Annual Lab Quality Confab. They were gathered to hear the latest success stories and breakthroughs in how laboratories and hospitals are using quality …
Phlebotomy Automation Likely To Be Next Trend
By Robert Michel | From the Volume XV No. 13 – September 29, 2008 Issue
CEO SUMMARY: Here’s a prediction that automation of work processes for phlebotomy, specimen collection, and specimen transport may be the next trend. Unfolding developments in the United States are creating a situation parallel to what was seen in Japanese hospital laboratories more tha…
Two U.S. Labs Pursuing ISO 15189 Accreditation
By Robert Michel | From the Volume XV No. 12 – September 8, 2008 Issue
CEO SUMMARY: In their first public interviews, the nation’s only two laboratories to seek ISO 15189:2007 accreditation share insights about the process, along with its challenges and benefits. Both laboratories are in the final stages of implementation and expect to earn accreditation b…
Piedmont Med Lab Mixes ISO with Lean & Six Sigma
By Robert Michel | From the Volume XV No. 12 – September 8, 2008 Issue
CEO SUMMARY: Piedmont Medical Laboratory (PML) could be the only clinical laboratory ever to pursue three quality improvement initiatives simultaneously. Even as it was in the early stages of implementing both Lean and Six Sigma methods, PML also decided to seek ISO 15189:2007 accreditati…
First U.S. Labs Nearing ISO:15189 Accreditation
By Robert Michel | From the Volume XV No. 11 – August 18, 2008 Issue
CEO SUMMARY: Laboratories, hospitals, and other health-care providers in the United States will increasingly be required to adopt quality management systems (QMS) as part of their regular operational routine. This is consistent with trends in other developed countries. Several U.S. labora…
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