WBR0051
| Author | PageAuthor::William J Gibson |
|---|---|
| Exam Type | ExamType::USMLE Step 1 |
| Main Category | MainCategory::Microbiology |
| Sub Category | SubCategory::Genitourinary, SubCategory::General Principles, SubCategory::Infectious Disease |
| Prompt | [[Prompt::A 22 year old woman presents to her primary care physician complaining of dysuria for the past 3 days with mild discharge. Her last unprotected sexual encounter was 2 weeks ago. Gram stain of the urethral swab reveals Gram-Negative diplococci. Which of the following media could be used to isolate this organism?]] |
| Answer A | AnswerA::Thayer-Martin |
| Answer A Explanation | AnswerAExp::Correct - See explanation |
| Answer B | AnswerB::Maconkey’s Agar |
| Answer B Explanation | AnswerBExp::Incorrect - Maconkey’s agar is used to culture a variety of organisms. Lactose-fermenting enterics (eg E.Coli) will appear as pink colonies. |
| Answer C | AnswerC::Tellurite Agar |
| Answer C Explanation | AnswerCExp::Incorrect - Tellurite agar can be use to culture Corynebacterium Diptheria. |
| Answer D | AnswerD::Bordet-Genou Agar |
| Answer D Explanation | AnswerDExp::Incorrect - Bordet-Genou agar is used to culture Bordetella Pertussis. |
| Answer E | AnswerE::Sabouraud’s |
| Answer E Explanation | AnswerEExp::Incorrect - Sabouraud’s agar is used to culture fungi. |
| Right Answer | RightAnswer::A |
| Explanation | [[Explanation::The patient in this vignette has been infected with Neisseria Gonnorhea, a gram negative diplococcus. Neisseria Gonnorhea can be cultured with Thayer-Martin media. Educational Objective: |
| Approved | Approved::Yes |
| Keyword | |
| Linked Question | Linked:: |
| Order in Linked Questions | LinkedOrder:: |