Lean Management and Process Improvement Methods, Explained

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Lean Management and Process Improvement Methods

Healthcare Organization and Management · Chapter 12: Quality Improvement and Process Excellence in HealthcareSection 12.2 · lesson 70 of 10510 min · free with a free account

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In this lesson

Finding waste, waiting, and variation with Lean and Six Sigma.

  • Explain how Lean defines value from the patient's side and names eight wastes
  • Calculate a value-added ratio from a value stream map
  • Describe flow, pull, level loading, standard work, and daily huddles
  • Choose between Lean, Six Sigma, and rapid improvement cycles based on the problem

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Transcript

Everything said in the video, section by section (1,322 words). Read along, or search it.

Opening Case

Twenty Days From Referral to Result

At Larkfield's outpatient cardiology clinic, the time from a referral to a patient hearing their test result averages twenty days. The clinic has been asked to see patients faster, so the staff are rushing every appointment. But is the appointment where the twenty days go? Lean asks that question, and its answer usually surprises the people doing the work.

Origins

Toyota Roots and Two Questions per Step

Lean grew out of the Toyota Production System, built in Japanese car manufacturing after the Second World War, with Taiichi Ohno as a central figure. Its core is two questions for every step in a process. Does this step create value for the person receiving the service? And if not, why is it here? There are three legitimate answers. It's required by law or regulation. It's necessary to the process, like a safety check. Or nobody can say why it exists, and then it's waste.

Defining Value

Value Seen From the Patient's Side

Value is defined from the patient's side, which is harder in healthcare. Patients often don't choose or pay for the service, and can't judge its technical quality. A workable test: would the patient see this step as advancing their care, if it were explained to them? Being assessed is value. Being assessed again because the first record was lost is not. Waiting is never value, however necessary the reason. But this test is no license to remove safety steps a patient wouldn't ask for. A Lean analysis without clinicians in the room can make exactly that mistake.

Eight Wastes

Naming Waste So It Becomes Visible

To make waste visible again, Lean names it. Ohno defined seven categories, and many programs now add an eighth: unused talent. Waiting, like a patient ready for discharge waiting for transport. Transport, moving specimens or equipment back and forth. Motion, staff walking to a far supply room. Overproduction, a report nobody reads. Over-processing, the same information recorded in three places. Inventory, stock that expires before use. Defects, a specimen rejected and drawn again. And unused talent, a skilled clinician doing clerical work, or frontline knowledge nobody asks for. Notice that almost every fix changes how work is organized, not how hard people work.

Quick Check

IV Bags Made Too Early

Quick check. Larkfield's pharmacy prepares a full week of each patient's IV bags every Monday. By Thursday, about a third are thrown out, because orders changed. Which waste is this? Pause, and decide. Overproduction: making more than is needed, before it's needed. The fix is pulling bags forward daily, as orders are confirmed. Transport is tempting, since the bags do travel to the units. But the loss here is making them too early, not moving them.

Lean Aims

Flow, Pull, and Level Loading

Once waste is out, Lean aims for three things. Flow: work moving through the process without queues, interruptions or rework. Pull: the next step draws work forward when it's ready, instead of having work pushed onto it. And level loading: smoothing demand, so a process isn't swamped at some times and idle at others. Level loading has the most healthcare use, and gets the least. Much of a hospital's variation is self-made: elective surgery bunched on certain days, discharges piled into late afternoon, clinics all starting at once.

Process Mapping

Swimlane Maps Show Every Handover

To find waste, teams draw a process map: the steps a process really contains, in order. A swimlane map puts each step in the lane of whoever does it, so every handover shows. Mapping works when you match the detail to the question. Map what actually happens, by asking the people who do the work, not by reading the procedure. And get someone from every lane into the room. The best moments come when two departments discover each thought the other was doing something.

Value Stream Map

Four Hours of Work in Twenty Days

A value stream map adds two times to each step: how long the step itself takes, and how long work waits before it. Add the step times to get process time. The total elapsed time is lead time. Process time divided by lead time is the value-added ratio. At the cardiology clinic, the working steps add up to about four hours. Twenty days of lead time is four hundred eighty hours. Four over four eighty is under one percent. So rushing the appointment works on a sliver of the total. The waiting sits in three batches: referrals reviewed weekly, results read twice a week, and letters sent on Fridays.

Standard Work

Standardizing Steps Where Variation Adds Nothing

Standard work is a written agreement on the current best way to do a task, used by everyone until it's deliberately changed. In clinical settings, it's the most contested Lean idea. The objection deserves its full strength: practice needs judgment, patients differ, and a rigid procedure applied without discretion is unsafe. It's right, and it doesn't defeat standard work. Standard work covers steps where variation adds nothing: where equipment lives, how a handover runs, what's checked before a procedure. Standardizing those protects judgment, by freeing attention for the patient. And it's a current best, written by the people who do the work, and changed when someone finds a better way.

Visual Management

Boards and Daily Huddles

Visual management makes the state of a process obvious at a glance: a board showing today's demand against capacity, or a marked spot that shows when something is missing. A daily huddle is a short standing meeting, typically ten to fifteen minutes at the start of a shift, to review the day, name obstacles, and escalate what the team can't fix. Both are cheap, and both decay: boards go stale, huddles stretch into briefings, then get canceled. The manager's job is to keep them short, keep them attended, and act visibly on what's raised.

Six Sigma

Reducing Variation Through Five Phases

Six Sigma comes at problems differently. Introduced at Motorola in nineteen eighty-six, it focuses on reducing variation, so a process reliably produces results within specification. Lean asks what doesn't add value. Six Sigma asks why the process doesn't produce the same result every time. It works through five phases: define, measure, analyze, improve, and control. Its namesake target is about three point four defects per million opportunities. It needs data, enough to see what the process is really doing. That suits lab turnaround, medication dispensing errors, specimen rejection, and billing accuracy, but not low-volume, poorly measured work.

Choosing a Method

Match the Method to the Problem

The commonest error is choosing a method because people are trained in it, rather than because the problem needs it. Lean fits problems of flow and waste: long waits, queues, handovers, duplication. Six Sigma fits variation and defects, when the defect can be counted and there's enough volume. A rapid improvement cycle fits local problems with an obvious change and a cheap test. And when you're unsure, start with a process map to find out which kind of problem it is. Watch for tool-first adoption: a mapping event on a process nobody complained about, or a program judged by events held instead of things changed.

Quick Check

Counting Wrong-Dose Errors in Pharmacy

One more. Larkfield's pharmacy dispenses about forty thousand doses a month. Wrong-dose errors run about two per thousand, and they're reliably counted. Nobody knows why they happen. Which approach fits best? Pause, and decide. Six Sigma, worked through define, measure, analyze, improve, control. The defect is countable, the volume is high, and the cause has to be found in the data. A quick test is tempting, but there's no obvious change to try yet. Testing a guess first wastes the cycle.

Case Resolved

Going After the Waiting

Back to the cardiology clinic. The team stopped rushing appointments and mapped the pathway instead. They tested reviewing referrals twice a week instead of weekly. It cost the reviewer some convenience, and took days off every patient's wait. The results session they left alone for now. It may have a clinical reason about consistency, so they recorded it as a question for the cardiologists, not as waste. Nobody worked faster. The pathway got shorter because the team went after the waiting.

Key Takeaways

Lean and Six Sigma Essentials

To recap. Lean asks of every step: does it create value for the patient? Name the eight wastes to see them again. Most elapsed time is waiting, so measure the value-added ratio. Six Sigma cuts variation through define, measure, analyze, improve, control. And match the method to the problem, not to the training.

About Healthcare Organization and Management at UPI Study

Healthcare Organization and Management (Health 302) is a self-paced online course of 105 video lessons in 18 chapters, from health systems and the law to ethics, leadership, teams, strategy, informatics, finance, quality, human resources, marketing and evidence-based practice. It carries a NCCRS credit recommendation for 3 semester credits.

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Universities that work with NCCRS

Healthcare Organization and Management carries a NCCRS credit recommendation. These universities work with NCCRS; some are UPI Study's signed partners. ACE and NCCRS have over 2,100 cooperating colleges that will consider accepting credits; the final decision is with the universities.

Thomas Edison State UniversityThomas Edison State UniversitySigned partnerUniversity of the PeopleUniversity of the PeopleSigned partnerCharter Oak State CollegeCharter Oak State CollegeSigned partnerStrayer UniversityStrayer UniversitySigned partnerColumbia Southern UniversityColumbia Southern UniversitySigned partnerIndiana TechIndiana TechSigned partnerPenn StatePenn StateWorks with NCCRSSouthern New Hampshire UniversitySouthern New Hampshire UniversityWorks with NCCRSSUNYSUNYWorks with NCCRS +many more cooperating universitiesFind my college →

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FAQ

Questions students ask us

About Lean Management and Process Improvement Methods

What are the eight wastes of Lean in healthcare?
Taiichi Ohno defined seven wastes, and many programs add an eighth. They are waiting, transport, motion, overproduction, over-processing, inventory, defects, and unused talent. Hospital examples include a patient waiting for discharge transport, staff walking to a distant supply room, the same information recorded in three places, stock that expires, and a specimen drawn again. Most fixes change how work is organized, not how hard people work.
How do you calculate the value-added ratio in a value stream map?
Divide process time, the total time the working steps take, by lead time, the total elapsed time from start to finish. If a clinic pathway has about four hours of working steps but takes 20 days, or 480 hours, the value-added ratio is under one percent. A ratio that low shows most of the time is waiting, so speeding up the work itself barely helps.
What is the difference between Lean and Six Sigma?
Lean targets flow and waste, asking whether each step creates value for the patient. Six Sigma targets variation and defects, asking why a process does not produce the same result every time, and works through define, measure, analyze, improve, and control. Six Sigma needs countable defects and enough volume, so it suits work like lab turnaround, specimen rejection, or medication dispensing errors.
Does Lean standard work conflict with clinical judgment?
Not when it is applied to the right steps. Standard work is a written agreement on the current best way to do a task, used for steps where variation adds nothing, such as where equipment lives, how a handover runs, or what is checked before a procedure. Standardizing those steps frees attention for the patient, and the people who do the work revise it when they find a better way.

About the Healthcare Organization and Management course

How many college credits is Healthcare Organization and Management?
Healthcare Organization and Management (Health 302) carries a NCCRS credit recommendation for 3 semester credits. ACE and NCCRS have over 2,100 cooperating colleges that will consider accepting credits; the final decision is with the universities.
How much does Healthcare Organization and Management cost and what is included?
$250, paid once, with lifetime access: all 105 video lessons, a practice quiz after each, the graded work and final exam, and an official transcript when you finish. Students who want several courses choose UPI Study PRO instead.
Which universities accept UPI Study credits?
UPI Study has signed partner agreements with universities such as Thomas Edison State University, University of the People and Charter Oak State College, and works with universities such as Penn State, SNHU and SUNY. ACE and NCCRS have over 2,100 cooperating colleges that will consider accepting credits; the final decision is with the universities. Use "Find my college" on this page to check yours.
How long does Healthcare Organization and Management take?
It is self-paced with no deadlines. The 105 lessons total about 17 hours of video; most students add reading and practice time and finish in a few weeks to a few months, on their own schedule.
How are the exams done?
Quizzes and assignments are online in the course. The final exam is taken online with proctoring; a person on the UPI Study team checks assignments, usually within two days.
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