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oCtoBeR 2010 - American Association for Clinical Chemistry

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12 CliniCal laboratory news <strong>oCtoBeR</strong> <strong>2010</strong><br />

PATIENT SAFETY FOCUS<br />

TAkING AIM AT REDUCING LAB ERRORS<br />

Organizing Specimen Processing <strong>for</strong> High Quality and Efficiency<br />

An Interview with Linda Nesberg<br />

Patient Safety Focus first interviewed linda<br />

nesberg, operations manager at mayo medical<br />

laboratories, in July 2009. in that interview, she<br />

described a system <strong>for</strong> reducing errors related to<br />

handling manual requisitions. the system follows<br />

lean principles that ms. nesberg used in the<br />

computer manufacturing industry be<strong>for</strong>e she<br />

switched to the healthcare field. a version of the<br />

mayo processing system has been successfully<br />

implemented in a variety of labs in the u.s., including<br />

the lab of the physicians who conducted<br />

the current interview. in this follow-up interview, ms. nesberg speaks<br />

more generally about proper receipt and processing of specimens and<br />

their associated test orders.<br />

erin grimm, md, and michael astion, md, phd<br />

conducted this interview.<br />

When you arrived at Mayo, how was<br />

specimen receipt and processing<br />

organized?<br />

The Mayo Reference Laboratory was growing<br />

rapidly when I arrived. At the time,<br />

there were three job categories: laboratory<br />

assistants, lead technologists, and supervisors.<br />

The laboratory assistants processed<br />

specimens, and when they encountered a<br />

problem, they either attempted to resolve<br />

the issue or they referred it to a lead tech or<br />

a representative within our client services<br />

section. Common problems at the time<br />

were those confronting any lab, such as<br />

missing data on the requisition, specimen<br />

mislabeling, and improper specimen containers.<br />

The lab did not have a standardized<br />

process <strong>for</strong> dealing with specimens that required<br />

extra work be<strong>for</strong>e processing.<br />

Why was a change in workflow necessary<br />

and what benefits did you hope to<br />

realize?<br />

The reference laboratory was experiencing<br />

double-digit growth per year. Further<br />

defining duties and separating tasks were<br />

necessary to efficiently deal with the increasing<br />

workload. My goal was to separate<br />

the problem cases from the general<br />

work flow so that the routine work moved<br />

through more efficiently and with fewer errors<br />

(Figure 1).<br />

When looking at workflow issues, do<br />

you use any particular approach to<br />

problem solving?<br />

Yes, we incorporate Lean principles. One<br />

of the general principles of Lean is to remove<br />

bottlenecks in order to reduce delays,<br />

which is one of the main <strong>for</strong>ms of waste in<br />

processes. There<strong>for</strong>e, we wanted to create<br />

a system in which problem cases did not<br />

block the flow of routine cases.<br />

What organizational changes did you<br />

institute to help workflow?<br />

I defined additional job categories to separate<br />

the duties of the employees responsible<br />

<strong>for</strong> keeping the pace of specimen processing<br />

moving from those who were specifically<br />

selected to deal with problem cases.<br />

The current organization of specimen processing<br />

is that a supervisor is in charge of<br />

35-40 people. Also under a supervisor are<br />

three or four lead techs. The lead techs are<br />

divided into two categories, slow-lane lead<br />

techs, who handle exceptions, and fast-lane<br />

lead techs, who are in charge of facilitating<br />

the work flow of the laboratory assistants<br />

and keeping the pace of routine processing<br />

on target. There are also other job classifications.<br />

One is the lab specialty assistant,<br />

who while supporting the lead techs, also<br />

aliquots all specimens. Another is the operation<br />

scheduler, who monitors daily volumes<br />

and determines appropriate staffing<br />

schedules to handle those volumes. In this<br />

system, the laboratory assistants are on the<br />

front-line, and they can process cases without<br />

dealing with delays caused by problem<br />

cases. The supervisor’s job is to ensure employee<br />

well-being. Supervisors help administer<br />

training <strong>for</strong> new employees, provide<br />

employee counseling, and triage personnel<br />

issues, such as time away from work. They<br />

also organize and administer process improvements<br />

and quality initiatives.<br />

How did you accomplish the reorganization?<br />

Was it hard <strong>for</strong> the lab staff to<br />

accept this organizational change?<br />

Change is always difficult <strong>for</strong> some people,<br />

but there were also benefits to graduated<br />

positions in the system. Previously, a career<br />

track <strong>for</strong> job advancement was not welldefined.<br />

Now, there are job classes with<br />

increasing levels of responsibility and in-<br />

creased pay. In addition, the more specific<br />

job descriptions allow personnel to gravitate<br />

towards the type of work they most enjoy.<br />

In terms of managing the more difficult<br />

changes, the largest initial change was that<br />

laboratory assistants no longer handled<br />

problem cases. Some were delighted, but<br />

others saw the problem solving as an integral<br />

part of their responsibility and missed<br />

that aspect of the job. We made a concerted<br />

ef<strong>for</strong>t to help everyone understand how the<br />

new system improved patient care, and we<br />

emphasized that above all high-quality patient<br />

care is our goal. Patients benefit from<br />

efficient, high-quality laboratory results.<br />

While specimen processing is not the area<br />

of the lab actively reporting test results,<br />

our contribution to patient care is efficient,<br />

error-free processing.<br />

How do you provide feedback to staff on<br />

how the lab is doing?<br />

We have large display monitors that show<br />

employees our success at reaching our processing<br />

timeline goals. The monitors provide<br />

real-time feedback to our laboratory<br />

assistants, showing them their contribution<br />

to our goal of providing rapid, highquality<br />

results.<br />

You mentioned that you created a<br />

special job category called operations<br />

schedulers. What is their role in the<br />

laboratory?<br />

When I first arrived, I noticed that predicting<br />

daily processing volumes was not a<br />

priority. When I investigated and created<br />

some reports, I found that workload followed<br />

predictable patterns. For example,<br />

we first estimated work volume on a Tuesday<br />

by looking back at the data <strong>for</strong> the last<br />

four to six Tuesdays and found that these<br />

numbers were a reasonably accurate predictor<br />

of volume. Since then, we have also<br />

predicted volumes based on orders, many<br />

of which are interfaced into our laboratory<br />

in<strong>for</strong>mation system. We pull this data<br />

shortly after midnight and create a report<br />

that indicates our incoming volume <strong>for</strong> the<br />

day. A hospital with computerized physician<br />

order entry could have access to similar<br />

data since morning blood draws can be<br />

pre-ordered.<br />

Why do you have a special job category<br />

<strong>for</strong> aliquoting?<br />

There are two reasons why I separated this<br />

task into its own job category. First, I wanted<br />

to ensure quality care. Manual aliquot-<br />

figure 1<br />

sorting routine specimens into a<br />

fast lane lets value flow

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