
A
CLINICIAN'S GUIDE TO THE HEALTHLINKS "CARE PROVIDER
TOOLKIT"
AND A
FEW OTHER WEB-BASED CLINICAL KNOWLEDGE RESOURCES
Eric Rose, M.D.
Clinical Assistant Professor, Department of Family Medicine,
University of Washington
Clinical Informaticist, University of Washington Physicians
Network
Introduction
If you ever watch the TV
show "ER," which in many respects is reasonably
accurate in its portrayal of current medical practice, you'll
notice that the attendings and residents on the show--even
the students--never seem to need to look things up when
they're seeing patients. They're amazing, walking
repositories of massive amounts of medical knowledge, ready
with the right workup plan, the right diagnosis, the right
treatment--instantly, every time.
Well, guess what--everyone,
including attendings, needs to look things up. All the
time. If you want to be an effective, efficient,
clinician, you need to incorporate the process of acquiring
new medical information into your patient-care
activities--whether it's the dosing for digoxin, where to
stick that needle when you're putting in a subclavian line,
or the latest research on hormone replacement therapy and
breast cancer--without missing a beat.
Fortunately, it's a lot
easier for your generation than for the one that came before.
Whereas you used to have to rely on whatever paper-based
sources were available (textbooks, "pocket
references" you carry around with you, your preceptor's
file drawer of journal articles), now you have available,
through the World Wide Web, the UW Health Science Library's Care
Provider Toolkit (CPT), an extensive collection of
medical knowledge resources--in electronic format--that rival
the contents of a small medical library. Which creates a
different problem--how do you find the answer to your
specific clinical question, quickly, amidst the
sometimes overwhelming variety of resources available?
That's what this brochure is
about. Consider it a "Lonely Planet" guide to the
Care Provider Toolkit (and a few other web-based
resources)--an opinionated, biased, sometimes unduly critical
or dismissive, take-it-with-a-grain-of-salt kind of guide,
written by one who has traveled extensively in the region,
which may come in handy when you're experiencing the
medical-knowledge equivalent of being stuck in Kathmandu when
it's getting dark and you need to find a place to sleep and
some yak butter tea. As with any guidebook, some travelers
won't want to take a step without it, while others will flip
through it and then toss it aside as they intrepidly explore
on their own.
PS. This is a work which I
plan to keep updated as resources in the CPT are added or
modified; the latest version will always be found on my
website, at: http://faculty.washington.edu/momus/cpt/guide.htm. Comments and suggestions are always
welcome; you can e-mail me at momus@u.washington.edu.
A Brief Technical Note
This guide presumes a basic
knowledge of how to use a computer and surf the web. If you
need help with that, check out http://www.pawisland.com/mainmenu.html which will show you the basics.
A note on file formats with
web-based resources. Most of the
resources you'll reach through the CPT are in
"HTML" format, which means they can be easily (and
quickly) displayed with your web browser (Netscape, Internet
Explorer, etc.). Occasionally you'll come across a link to
information in a different format, like a Microsoft Word
file, and the browser will prompt you to state whether you
want to save the document to your hard drive or view it right
away--usually you'll want to choose the latter, as you can
always save it after viewing it if it turns out to be useful.
One other file format is worth mentioning is the
"Portable Document File." These files have the
suffix ".pdf" and are viewed with a program called
Adobe Acrobat Reader, which can be downloaded for free from
the web. Most websites that link to .pdf files will also have
a link to download the Acrobat Reader for those who don't
already have it on their computers, but if they don't, here's
a link to the download page:

The Basics
The CPT (http://healthlinks.washington.edu/toolkits/care_provider.html) is part of "Healthlinks,"
a larger website operated by the UW Health Sciences Library.
It (the CPT) is basically a links page designed to provide
easy access to clinically useful information. However,
it's different from many other "links pages" in
that many of the resources linked to are pay sites that are
subscribed to by HSL, and are made available only to
UW-affiliated persons. The CPT page--as of February
2000--looks like this:

As you can see, the resources in the
CPT are arranged in 6 categories--for the most part it's just
click-on-the-resource-you-want-and-go. The categories are...
- Medline and Full-Text Journals
- Drug Reference
- Patient Education
- Evidence-Based Medicine and
Guidelines
- Textbooks
- Other Useful Resources
...so that's how we'll organize the
rest of the guide.
A few other "basics" first:
See the funny icons? They're actually
worth knowing about. The
indicates a "restricted" resource,
i.e. one not available to any old schlemiel surfing the web,
because UW paid $ so you & I could have it. You don't
really need to worry about this issue, unless you have
trouble connecting to the resource in question, in which case
if you click on the
next to it, you'll get some information on the
technical aspects of how the restricted access works. Those
students who will need access from remote sites where the
computer they're working on isn't directly conntected to the
UW will probably need to connect using a "Proxy
Server"--see http://healthlinks.washington.edu/help/connecting.html. If you run into trouble, call or
e-mail HSL (see the website for contact info).
The
icon links to
some information about the resource that only a librarian
would care about (OK, that's a bit of an exaggeration, but
for the most part you won't go there).
In the frame on the left of the
screen, there are three links on the left that you'll
probably end up using sooner or later.
- The "Databases" link brings up a list of many
of the knowledge resources HSL gives access to, not
the "filtered" list on the CPT. It's a good
place to look if you can't find what you want in the
CPT, before branching out to the WWW as a whole.
- The "Journals" link brings up a list of
medical journals that have some kind of web presence.
This the place to start if you know of a
particular journal article you want.
The journals are listed alphabetically. If the
journal you're looking for isn't there, you can't get
the article on the web through Healthlinks. The list
contains ***
- The "Help"
link is your friend--there's a lot of info there. If
you're having problems, check it out before you call
or e-mail HSL; you might find your answer a lot
faster.
The
"Rating" System
One of the most important things to
know about any knowledge resource is how quickly can
you get your answer. This has a lot to do with how
well the information is organized and presented, though of
course, the level of detail makes a big deal as well. There
are times when you just need to know what to do, fast,
so you can get back to seeing the next patient. There are
times when you have more time, and can take a while to peruse
a moderately detailed reference. And (hopefully), there are
times when you will want to cuddle up with a very
detailed reference, at leisure, and absorb some nitty-gritty
"raw" medical literature, with all its ambiguities
and nuances, and really master a topic.
Like a said, you need to know which
knowledge resources fall into which categories. So, in the
following commentaries, I've assigned one of three icons to
those knowledge resources in the CPT that I am recommending.
A given resource may be labelled with more than one icon,
e.g. if it provides access to different types of information
that correspond to the different icons. If a listed
resource doesn't have an icon next to it, that's because I
don't think it that the link to it will be of much use to you
(note that I don't say that it's because the resource won't
be useful, just the link, because there may be other links to
it which will be useful--yes, that is
confusing, but all will be explained--see below).
The "Rocketeer" indicates a resource
to use when you need to zoom to a specific piece of
information--you're hopping, no time to waste digesting lots
of details, just need the answer to your question--FAST--from
someone who's done the digesting for you. This is the Power
Bar of the CPT; not suitable as your sole source of knowledge
nutrition. Incidentally, the flame in this icon is animated,
so if you're reading the printed version of this you're
really missing out.
The "Biker" indicates a resource
that's intermediate in detail and speed with which you can
get through it. It won't just give you an answer with no
explanation; you'll find some background, some context, and
enough information to educate you beyond the question of how
to take care of a particular patient at a particular time.
The "Fleur de Lys" was the symbol of the Bourbon
dynasty of France and has nothing to do with anything; I just
got tired of looking for clip art.
The "Hiker" indicates an in-depth
knowledge resource--one that will discuss a topic down at the
level of the nitty-gritty minutae of medical knowledge, often
including statistical results of individual published
studies. This is the kind of thing that you want to make as
much use of as you can, as it will educate you both about the
topic in question as well as how medical
"knowledge" is built step by step from conflicting
and ambiguous building blocks. However, you won't get through
it fast--you'll mostly want to read these after work, at the
kitchen table, with a cup of yak butter tea.
Medline and
Full-Text Journals

PubMed is a Medline search tool that has a slightly
clunky user interface, but is very powerful if you take the
time to figure out how to do stuff (like Boolean logic to
combine searches, etc.). It's the only way in the CPT to
search all of Medline. Medline, of course,
is a database that indexes basically every medical journal
going back to 1966. You search it when you want to find any
kind of article in a medical journal, e.g. clinical trials or
review articles on a given topic.
OVID Full-Text Journals provides access to the entire
contents of about 40 of the most important medical journals. However,
it doesn't make much sense to ever go directly to
this link, since it is only one of several different
"portals" throught which Healthlinks provides
full-text access to medical journals. If you know of a
specific journal article you want, it makes more sense to
look for the journal where it appears in the list accessed
from the "Journals" link on the left, and from
there, link to the full-text access portal, be it Ovid,
ProQuest, or whatever. If you don't know the article you
want, it makes more sense to search all of Medline than to
follow the Ovid link, since the latter will only search those
40-some-odd journals for you.
Other full-text journal
packages--Same
deal as Ovid (see above)
Drug Reference

MicroMedex is the only up-to-date drug reference through
the CPT (except for GenRx, which is available through both MD
Consult and Stat!Ref--see below). It is quite thorough though
the user interface could be better. It does
have fairly quick access to critical things like doses and
information about using drugs in pregnancy. The website also
links to a toxicology database, a database that identifies
meds by the imprints on a pill, and a not-very-useful set of
patient handouts (on general medical issues, not on drugs!)

GenRx is the other up-to-date complete drug
reference available through the CPT. You have to go through
the MD Consult page to get to is (see below). Other than
being a little inaccessible, it's great.
FDRx--Federated Drug
Reference was a
remarkable achievement in its time which pulled together
several separate databases having to do with medications.
Unfortunately, it hasn't been kept up-to-date and in its
current incarnation (2-2000) is not highly useful.
Managed Care Combined Drug
Formulary Guide provides
information about which health plans cover which meds in
Washington State. It is better than nothing if you need this
sort of information but was last updated in 1998 and
formularies may have changed a lot since then!
Food and Drug Administration
Drug Information--This website
really isn't very useful--mostly regulatory info. Some info
on recent FDA warnings/drug recalls, etc. Don't go looking
here for general drug info, though.
Patient Education
MD Consult--As with most everything else with
MD Consult, this is a quality resource. The handouts here are
actually from a company called Clinical Reference Systems,
are well-written, and cover a very
broad range of primary care topics, including handouts on a
very large # of medications. The only downer is that you have
to type in a username and password and their server is slow!
AAFP
Patient Leaflets--The
range of topics is limited. If you can find a pamphlet on the
topic you're looking for, the quality is very high.
US DHHS
healthfinder--This is
one of those extensive "links pages" that can keep
you clicking forever to find what you need. At least it has a
search function. It does have some links to
decent material and is a good last resort if you can't find
what you need in the two resources above.
EthnoMed--This is a very cool resource, a
guide to cultural beliefs and practices--particularly as they
pertain to health and medicine--of people from East Africa
and South East Asia, who form a large proportion of recent
immigrants to Seattle. Definitely worth reading if your
clerkship site serves individuals from these parts of the
world.
AMA Health Insight--Good material but not
printer-friendly; many pamphlets are spread over several web
pages.
MicroMedex Patient Leaflets--Short, little detail, designed for
use in ER's. Not really worth wasting your time with.
Health Reference Center--Some good material here but the
user interface is so clunky it's barely worth it, especially
given the availablility of MD Consult (see above)
Evidence-Based
Medicine and Guidelines
Cochrane
Library--This is the
Grand Poobah of all evidence based knowledge resources. It
covers a wide array of topics. For each topic, there is a
summary of all the available published studies and a
discussion of how all their results can be reconciled into a
coherent picture and translated into standards of clinical
care. For some, they have done "meta-analyses,"
where they combine data from available studies and re-analyze
it to get overall results. The focus of each topic is
quite specific, e.g. "Amnioinfusion for preterm
rupture of membranes," so look here if you want to know
all there is to know about a particular clinical question. If
your focus is more broad, like "how do I take care of a
patient with preterm rupture of membranes," look
elsewhere.

National Guideline Clearinghouse--Now we're talkin'. Seems like
everyone and their mama's issuing guidelines these days, and
the NGC has got them all. Or at least, the
"summary" chapters of them all and links to the
entire guidelines (when they're available on the web). This
is a great resource if you know of a specific guideline that
you need. Be a little careful,,though--all guidelines are not
created equal! Just because one has the imprimatur of an
organiziation doesn't necessarily mean it's carefully put
together or that its recommendations are supported by
evidence. One cool feature is the "Compare
Guidelines" feature which allows you to compare
guidelines on similar subjects side-by-side.
PubMed Clinical Queries
using Research Methodology Filters--This is a feature of PubMed (see above) that
allows you to "filter" Medline searches according
to the focus of the articles in the database, either
"therapy," "diagnosis,"
"etiology," or "prognosis." Your search
results then become a search set in PubMed that you can
combine with other searches or apply further limits to, e.g.
language or type of article. This might be useful in some
situations if you're not wanting to retrieve everthing
in a given subject area.
University of Washington
Physicians Guidelines--OK,
I'm going out on a limb here, but give these a miss too. For
one thing, some (like HTN & CHF) are out of date, others
(like DM & Asthma) are basically just summaries of
guidelines from other organizations that are available in
more readable format elsewhere. You been warned--nuff said.
TRIP Database--This site ambitiously claims to be
a searchable "amalgamation
of 26 databases of hyperlinks from Evidence-based
sites around the world." Unfortunately, there ain't much
there. A lot of the search results are bad links. Those that
work are often not very useful, e.g. brief summaries of
Cochrane systematic reviews instead of the reviews
themselves, or summaries of published clinical trials that
you could have found through Medline.. Not highly
recommended.
Best Evidence--This can only be used if you're
physically in the Health Sciences Library.
ACP Journal Club--This includes summaries and
discussions of recent important published studies. It is fun
to browse but not likely to be useful if you have a specific
question in mind, since the topics are hit-or-miss.
Evidence-Based Medicine--Ditto.
Immunization Recommendations--This links to another page of links
(oh well), but there you'll find links some
useful stuff, like those that follow. The other links on that
page are pretty redundant. For some reason they've put links
to the US Guide to Preventive Services and the American
Academy of Family Physicians' recommendations for the
Periodic Health Examination on this page. These are useful
documents to wade through if you ever want to know why some
things are recommended as part of a "routine
check-up" and others aren't (and hopefully someday you
will wade through them, but probably won't be references
you'll be consulting in the rush of a clinic day. Note that
these, and other "guideline"-type docuemnts can be
accessed through the National Guideline Clearinghouse website
(see above).
CDC
National Immunization Program--"Official" national
recommendations for vaccinations of kids & adults
CDC
Traveler's Health page--The definitive source on what shots
& other precautions are needed for travel to what
foreign countries.
PRN Vaccine and
Immunobiologics Information--Follow this link, then the one that
reads "Vaccine
information for prescribers and patients" it will
take you to a very cool site maintained by the
UW Pharmacy Department, which gives links to Vaccine
Information Statements--handy handouts you can (and
should) give patients (or their parents) before
immunizing.
HealthLinks Evidence-Based
Practice & Guidelines page--Again, a link to a page of links, and this
links page is massive! It is sort of an expanded list of EBM
& Guidelines links and includes many of those in that
section on the main Healthlinks page (i.e. those listed
immediately above). There are many interesting links here but
few that will likely be of great practical use to you on your
rotation. One exception is the "Best Available
Evidence" link (see below). In addition, there are links
to some important and useful clinical guidelines, e.g. the
Public Health Service's "Guide to Clinical Preventive
Services" and the guidelines of the AHCPR, but again, if
that's the sort of thing you're looking for, you're better
off going to the National Guideline Clearinghouse website and
using their search function to find something on the topic
you've got in mind.
Best
Available Evidence--This
takes you to--yet another links page! (Yes, they
are playing with your mind). This one, the
Healthlinks "Best Available Evidence Page,"
however, is actually very useful, as it pulls together
some disparate information--including the superb
"User's Guide to the Medical Literature" series
from JAMA--on how to evaluate the data presented in the
primary medical literature, e.g. stuff about statistics
and such. This is more useful as a (long, slow) tutorial
than a rapid reference, but well worth using in that
respect. Plus there are duplications of links to various
guidelines, etc. already mentioned above.
Textbooks
Clinical Nutrition Resource
Book--An impressive
work, but as it focuses on enteral and parenteral nutrition
therapy, it's not one you'll be using much in your Family
Medicine rotation. Keep it in mind when you're getting ready
for your ICU elective, though...
GeneClinics--Again, really impressive, and
again, one you probably won't need every day on a Family
Medicine rotation. This has very detailed info on what types
of testing is available for various genetic diseases.
Actually, it has a lot more, including info about the
inheritance patterns, clinical features, etc., for a large
number of genetic diseases. Keep it in mind.
Harrison's
Online--Just what it
says. If you like Harrison's, here it is online (for my
money, I'd go with Sci-Am Online--see below). The interface
is a little cumbersome, but at least it's just one link and
no password to type in like with MD Consult (see below)
Laboratory Test Information--Don't waste your time--all you'll
find is the normal ranges, specimen requirements, etc.--not
what you want to know, which is, "what does this test
mean." For that, you'll want to look in Ravel's
"Clinical Laboratory Medicine," a (perhaps too)
detailed textbook in the MD Consult collection (see below)

MD Consult--OK, this site is a pain to get into because
you have to a) Go initially to the main website before you
can access any of the many different resources it provides,
and b) the server is slow. BTW, you have to click on the
"Open Generic Edition" to get in. Despite these
drawbacks, this site is your friend, OK, so just do what I
tell ya. Get in the habit of going in there, hanging around,
seeing what you find. Seriously. It has a very comprehensive
array of excellent textbooks, the full texts of some very key
journals (including the "xxx Clinics of North
America" journals which, if you hadn't figured out by
now, are a great source for well-written,
authoritative review articles on just about anything), a
great (though VERY detailed) drug reference (GenRx), a great
set of patient handouts, and the whole durn
thing is searchable all at one fell swoop. It's basically a
top-notch mini-medical library. What more do you want, the
freakin' computer to pick up your dry cleaning or something?
PS. If you're not using the UW Proxy Server (see above),
you'll have to e-mail HSL
to request a username & password.
Scientific
American Medicine Online--This
is the textbook that, in the paper version, comes in the big
looseleaf binder because they keep updating it all the time,
chapter by chapter, rather than all at one fell swoop with a
new edition. The online version is nice, though the lack of
an index is a bit of a pain.
STAT!REF
Medical Reference Library--OK,
if MD Consult is the WWF, then Stat!Ref is the WCW. Uh...what I mean is that it's the
same concept but with lower-quality material and shoddier
execution. The main asset of Stat!Ref are the "Current
xxx Diagnosis and Treatment" series, which, to give them
credit, are faves with students because
they're so concise, and also offer useful chapters on
presenting problems, like "Hematuria." In addition,
Stat!Ref contains DSM-IV, the definitive reference on how to
diagnose (but not how to treat) psychiatric disorders, and
Williams Obstetrics, considered by many to be the
"definitive" text, but MD Consult has Gabbe's
Obstetrics, edited by UW's own Dr. Gabbe, which in my humble
opinion is better anyway.
Stedman's Medical Dictionary--If erudition (or good speling) were
essential in medicine, half of us faculty would be out on our
butts by now. But if you need it, there it is.
University
of Iowa Family Practice Handbook--I recommend this reference with caution. In
my opinion, it's not kept very diligently up-to-date in many
topics and it's a bit too lacking in detail for my comfort.
However, it is good for a quick reference, and the fact that
it's organized to some degree by symptom, not just by
diagnosis, can make it handy.
Other Useful
Resources
CINAHL--This is a database of Nursing journals, the
equivalent of "Medline" for the Nursing literature.
The link actually takes you to the CINAHL page of WebSPIRS, a
search tool that gives you access to numerous databases of
academic literature, including social work, zoology, etc.
This won't me of much use to you in day-to-day practice.
Clinical
Calculators--Some of
these are useful--they're the kind of things you'll want to
bookmark when you find them, so that you don't have to
navigate your way through it each time to find what you want.
My personal favorite are the calculators on the National
Center for Emergency Medicine Informatics page, though the page itself has a
busy and difficult layout.
Reportable Infectious
Diseases--Reporting
reportable diseases probably won't be your responsibility
until you're at least at the intern level, but if you want to
know about reporting requirements in King County, here ya go.
Medical Center Information
Systems--I don't know
what this is doing here. Most of the links from this page are
inaccessible to the general UW Community, and they aren't
really things you'd find useful anyway.
WEB-BASED
RESOURCES OUTSIDE THE CPT
These are just a few of the
sites I regularly use in my practice. They aren't on the CPT
but are potentially useful for students and residents.
The Dermatology Online Atlas--This is a derm site that has about
10 pictures of every single friggin' derm disease known.
Completely useless unless you have some idea of the
diagnosis, but if you have a diagnosis name, it's very useful
PDR Online--Just an online version of the PDR which, in
case you don't know, is simply drug manufacturers' official
information statements ("package inserts") on their
drugs. Useful for "official" information on dosing,
interactions, blood test monitoring, etc. You have to
register for the site, but it's free.
USDA Nutrient Database--Ever want to know how much Calcium
there is in Kale? Look it up here! Complete nutritional info
on basically every single type of food. Useful when
counseling patients on nutrition.
The Quick
Guide--A Summary of the Recommended Resources by Rating
...and just
for you, I put in hyperlinks so you can get to them quick.
That's it; if you have any comments, questions, suggestions,
etc. please drop me an e-mail at momus@u.washington.edu. Happy surfing,
Eric Rose, M.D.
PS.--Take a look at the CPT GUIDE
EXERCISES--A
set of "real-life" vignettes designed to help you
learn your way around the Care Provider Toolkit--Check it
out!