The
Sherlock Holmes Assignment AKA The Unknown Lab
Objectives Name____________________
Following this lab exercise and project the student will be able to:
1. Integrate lab skills and tests to identify an unknown.
2. Justify the lab procedures used, identification, and treatment of the patient.
3. Evaluate the patient in light of the unknown identification and patient's immune status.
4. Determine the proper care and
treatment for the patient using and citing valid
references.
Unknown Number______________
Patient’s Name____________________
Assignment:
1. assess your patient’s condition
2. propose a differential diagnosis from the history
3. determine the necessary tests for a definitive diagnosis
4. identify the etiologic agent infecting your patient
5. propose a treatment and long-term care for the patient
Prepare a chart for your patient. The first page should include the patient history and any relevant research you do with regards to any of your patient’s conditions relevant to the history. This page should also include a differential diagnosis.
The second page should include any tests that you determine are necessary for the proper identification and treatment of the patient. You are to order and perform only the necessary tests, you will lose points of you do any tests that are unnecessary or do the shotgun method using every test you have ever done or read about. If there are other tests you feel are necessary, but they can not realistically be performed in our lab, indicate these and why they would be important. In addition to microbiological tests you may want to include orders for a CBC, X-Ray, skin test, etc.
The third page should be a record of every test you performed (and the date), the rationale for doing the test, and the results of the test (and the date the test was completed). Explain how these tests helped to rule out the differential diagnosis.
The fourth page will include a summary of the definitive diagnosis, identification of the etiologic agent, information about the agent, a proposed course of treatment and long-term care.
Before you begin observe your specimen. Using the checklist make important observations from the clinical specimen.
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Specimen Checklist |
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Source |
List significant concerns or comments about the specimen source.
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Condition of specimen |
What characteristics may be important concerning the original specimen? Is there blood? Is it moist? Are there any foreign objects, pus, clots etc?
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Time specimen taken
Time Cultured |
How recently was the specimen taken and will this have any influence on the results? Are there any transportation concerns regarding this type of specimen and culture?
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Differential diagnosis or hypothesis |
What are the most likely pathogens found in this type of specimen?
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Normal flora |
Would you expect to find normal flora present in specimens from this source location? If so, what would be most common?
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Media |
What types of media are commonly used for this specimen?
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Incubation Considerations |
Considering the location of the specimen are there any special incubation conditions you should consider?
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Media Inoculated |
Rationale for using this media |
Date Inoculated/Date read |
Results/ Notes/ Thoughts |
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Record the Gram stain reaction of each different colony type found on the media.
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Gram Stain (create a number to identify the colonies and mark it on the plate)/ Colony description |
Recovered from which plate/On what date |
Notes (Is this potentially normal flora? Is this a typical result? Anything unexpected? Does the colony morphology match the Gram stain and media selectivity?) |
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Determine the appropriate lab tests you will need to continue the investigation. In addition, if you think there should be other tests, such as a cbc or x-ray, that we can not do, indicate that you would order those tests.
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Lab test |
Date inoculated/date read |
rationale for lab test |
Result and interpretation |
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Determine the identification of your etiologic agent.
What particular types of pathogenic capabilities (if any) does this pathogen display?
Using the Sanford Guide select at least 8 antibiotics in order to test the sensitivity of the agent. Remember to consider cost, narrow and broad spectrum, target agent, target tissue, and administration as well as any side-effects.
Antibiotics available for testing will include the following and any additional mentioned in class:
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Amoxicillin/ |
Ceftriaxone |
Impenem |
Tetracycline |
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Amikacin |
Cefotaxime |
Levofloxacin |
Ticarcillin |
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Ampicillin |
Chloramphenicol |
Oxacillin |
Tobramycin |
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Azithromycin |
Ciprofloxacin |
Penicillin |
Vancomycin |
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Bacitracin |
Clindamycin |
Pipericillin |
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Cefaclor |
Doxycycline |
Nitrofurantoin |
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Cefazolin |
Erthromycin |
Sulfasoxazole |
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Cefixime |
Gentamicin |
Sulfa-Trimeth SXT |
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Determine factors concerning your patient that are relevant to resolving the patient’s condition. Review the immune status of your patient. Determine future treatment and care of your patient and their unique situation.
Step 6 –
Create a patient chart that will be graded with the rubric on the following
page.
Grading Rubric for the Unknown Case Report
Name______________________________________________________
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Criteria |
1 |
2-3 |
3-4 |
5-6 |
Points |
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Writing & Scientific Terminology |
The report shows evidence of spelling and grammar errors. |
Few spelling and grammar errors. |
The report displays uniform formatting, proper grammar and spelling. |
The report displays no errors, proper formatting, excellent references and a high level of appropriate scientific vocabulary. |
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Analysis of Patient History |
The patient history is included. |
The patient history is analyzed with regards to significant factors. |
The patient history is analyzed using outside sources and relevant data. |
The patient history is thoroughly analyzed integrating excellent supportive resources, encompassing a holistic view of the patient’s condition, symptoms, emotional and immunologic status.. |
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Diagnosis |
A diagnosis is provided. |
A diagnosis with supporting data is included. |
A reasonable list of potential differential diagnoses is evaluated. The final diagnosis is supported. |
A differential diagnosis, evaluative criteria to eliminate unlikely agents or causes, and a final diagnosis are explained and supported with data & sources. |
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Lab Tests |
Inappropriate or inaccurate lab tests were used. |
Only appropriate tests were used but insufficient tests were done. |
All appropriate tests were done. |
The report displays a good understanding of all the appropriate tests which were used in the identification. |
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Normal Flora and Specimen Evaluation |
Normal flora was identified as pathogens. |
Normal flora were ignored, specimen was evaluated superficially. |
Appropriate normal flora were discussed& the specimen was properly evaluated. |
Normal flora were discussed and identified if present in the culture. The specimen was thoroughly reviewed and evaluated with references. |
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Immune Status |
No discussion of the immune status of the patient. |
Incorrect or inadequate discussion of the patient immune status. |
Discussion of the immune status of the patient in light of pathogenic capabilities of etiologic agent. |
Discussion of the immune status of the patient and integration into the diagnosis and treatment including a flow chart of this particular agent with regards to this patient. |
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Patient Care Strategy and Treatment |
A patient strategy and treatment are included. |
The patient strategy and treatment included sensitivity results. |
A viable holistic patient care strategy & treatment is suggested and based upon sensitivity results. |
A long term, holistic patient care strategy and treatment is based on sensitivity results and considers various options and effectiveness is developed with references. |
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Prognosis |
The report assumes a prognosis with no research. |
A prognosis is hypothesized using researched information. |
A prognosis is stated with relevant supporting references. |
The prognosis shows integrated thinking and use of resources and data to justify conclusions and incorporation of immunologic information. |
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total |
Add 2 points for correct identification |
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Comments:
Date last updated DATE \@ "M/d/yyyy" 11/21/2007 ©Janet Fulks
Bakersfield College |
Kern Community College District |
Janet Fulks
1801 Panorama Dr. - Bakersfield, CA 93305 - (661)395-4011
Date last updated
11/21/2007
©Janet Fulks