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Problem-based Learning & Finding the Evidence: Case 7: Sam Yorty -- Occam's Razor


The following are textbooks of possible interest and are available either in print or online.  AccessMedicine has a nice diagnostic tests text but may be busy.

To find more books of interest, use the Roger search box below.

Roger Search Box

Samantha Yorty -- Occam's Razor


Resources for this Case

Textbooks  (look left)

Dr. Santos Recommends:  US Preventive Services Task Force for Screening Recommendations

Other National Organizations - Rare Diseases

Lab Tests Redux: Getting a Better Understanding of Tests

Link to the Clinical Reasoning Tool

DDX Tools Redux : a Tip from Dr. Gates

Point of Care Tools : Getting the Bigger Picture or the fine details

Genetic Resources

Patient Information Resources



Screening Recommendations - National Organizations

U.S. Preventive Services Task Force

Two option exist for finding some great information.  First in this list is their main website that is worth browsing to see the background on who this organization is and the type of information they provide.  Second in the list is for a specific tool you can use to find a specific screening list appropriate for your patient.  This is one of the key sources for determining screening recommendations.  For the upcoming clinic rotations, this app is a recommended one to have on your phones or tablet.

Other National Organizations -- Rare Disease

Lab Tests Info

Looking up information about the results of lab tests are mostly background questions.  The following resources are easy to use tools to find very reliable information about the normal values, reference ranges, and more.  And, are a great follow up or addition to the information you might obtain with the US Preventive Services apps.


Lab Tests Online  
A peer-reviewed, non-commercial, and patient-centered resource. It is a free resource from the American Association for Clinical Chemistry.


DX Resources

Perhaps your questions this week deal with understanding the different symptoms the patient mentioned.  What do they indicate?  Without some good hunches it is hard to move forward.  There are a number of differential diagnositc tools to help with the process.

DDX & Symptom Checker Resources

Passing along a Tip from Dr. Gates regarding a DDX & Symptom Checker 

Dr. Gates has found a very helpful text within Access Medicine - Symptoms to Diagnosis: An Evidence Based Guide.  Presented through a series of cases of patients complaining of a specific issue, then walks you through buiding the DDX and prioritizing it, and making the diagnosis.  Unlike the interactive tools that give you list, this text helps explain the thinking process. For example, here's a small screenshot of the hypercalcemia section.


Also listed below are some of the interactive DDX tools.

Point of Care Tools

Point of Care Tools

Get that bigger picture, determine the ddx, or find the clinical features of a disease with one of these tools.  Try one you haven't used before - switching tools is easy to do and you might pick up some different practice pearls.  The NIH Rare Disease section refers to eMedicine for more indepth info on MEN1 & 2.

Life-long Resources -- Genetics

Genetic Resources  

Looking for some details on MEN1 or MEN2?  Perhaps one of the following will give you what you need.

Patient Information Resources

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