A Diagnostic Dilemma by Elizabeth Long

A Diagnostic Dilemma by Elizabeth Long https://padlet.com/erl003/5odw4no58t5e5c11 Microbiology Project #1 en-us 2020-09-05 15:22:02 UTC 2025-12-01 00:44:32 UTC hello@padlet.com Introduction erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722678829 2020-09-05 15:44:03 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722678829 Patient's Signs/Symptoms erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722687583 The patient initially presented with a sore throat, fever, and swollen tonsils.

A rapid antigen detection test for Group A Streptococcus was performed and was negative.

A throat swab was collected, and the patient was sent home.

The patient returned the next day with a worsening sore throat, difficulty swallowing, pus on the tonsils, and his uvula was deviated toward one side of the throat.

]]> 2020-09-05 16:00:39 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722687583 Tests Ordered erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722698245 Upon his first visit, a rapid antigen detection test (RADT) for Group A Streptococcus was ordered.

In addition, a throat swab was collected for a culture and sent out to the lab for examination.]]> 2020-09-05 16:21:07 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722698245 Test Results Used to Make a Diagnosis erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722726724 The microbiologist observing the throat culture in the plates noted β-hemolytic colonies on the blood agar plates after 24 hours incubation.

The microbiologist used a gram stain to observe the culture under a light microscope which revealed gram-positive cocci-shaped bacteria growing in long chains.

This information from the microbiologist allowed the physician to make the diagnosis of Peritonsillar abscess caused by bacterial Group A Streptococcus.]]> 2020-09-05 17:12:34 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722726724 Picture of Bacteria erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722740305 The picture on the left is of the bacteria under a light microscope, and the picture on the right is of the bacteria in the blood agar plate.]]> 2020-09-05 17:39:21 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722740305 Treatments erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722743559 The patient’s peritonsillar abscess was drained.

The patient was also treated for 10 days with an antibiotic penicillin.]]> 2020-09-05 17:46:03 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722743559 Outcome of Patient erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722749782 The patient's symptoms were completely resolved with this course of treatment.]]> 2020-09-05 17:57:58 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722749782 Conclusion erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722756203 2020-09-05 18:10:26 UTC https://padlet.com/erl003/5odw4no58t5e5c11/wish/722756203 Sources erl003 https://padlet.com/erl003/5odw4no58t5e5c11/wish/722763754 CMMC Case - A Diagnostic Dilemma Slideshow

Cohen, J. F., Bertille, N., Cohen, R., & Chalumeau, M. (2016, July 4). Rapid antigen detection test for group A streptococcus in children with pharyngitis. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6457926/.

Gram Staining. Microscopy. (2016, November 3). https://serc.carleton.edu/microbelife/research_methods/microscopy/gramstain.html.

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