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[h] Microbiology & Antimicrobials Flashcards

[i] Master this session in just 5 minutes.

[q] …………. is a mold that is widely present in organic matter. It forms septate hyphae that branch at 45° angles (V-shaped branching).

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IEFzcGVyZ2lsbHVzIGZ1bWlnYXRlcy4=[Qq]

[q] What is the most likely diagnosis?

39 years old patient diagnosed with Hodgkin lymphoma presenting with facial pain (periorbital), headache due to paranasal sinus infection + light microscopy of tissue specimens, which shows V-shaped, narrow, septate hyphae invading the tissue?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IEludmFzaXZlIGFzcGVyZ2lsbG9zaXMu

QW1waG90ZXJpY2luIEIgaXMgdXNlZCB0byB0cmVhdCBpbnZhc2l2ZSBhc3BlcmdpbGxvc2lzLg==[Qq]

[q] What is the most likely diagnosis?

31 years old patient with previous history of pulmonary tuberculosis presenting with cough and hemoptysis + On chest x-ray, there is a radiopaque structure that shifts when the patient changes position?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IEFzcGVyZ2lsbG9tYXMu

VGhleSBhcmUgb2Z0ZW4gc3VyZ2ljYWxseSByZW1vdmVkLg==[Qq]

[q] What is the most likely diagnosis?

21 years old patient with previous history of Asthma presenting with wheezes, dyspnea, increased mucus production, very high serum lgE levels, eosinophilia, and lgE plus lgG serum antibodies to Aspergillus.

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IEFsbGVyZ2ljIGJyb25jaG9wdWxtb25hcmF5IHNwZXJnaWxsb3NpcyAoQUJQQSkuwqBUcmVhdG1lbnQgaXMgd2l0aCBjb3J0aWNvc3Rlcm9pZHMu[Qq]

[q]………. is a dimorphic fungus; forms pseudohyphae at 20°C, germ tubes at 37°C.

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[f]IENhbmRpZGEgYWxiaWNhbnMu[Qq]

[q] What is the most likely diagnosis?

21 years old Asthmatic patient taking inhaled corticosteroids presenting with white patches on the oral mucosa that can be easily scraped off, revealing an erythematous mucosal surface underneath and burning pain of the tongue?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IE9yYWwgdGhydXNoIGR1ZSB0byBjYW5kaWRhIGluZmVjdGlvbi4=[Qq]

[q] Unexplained oral thrush in an otherwise healthy person suggests the possibility of ………?

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[f]IEhJViBpbmZlY3Rpb24u[Qq]

[q] What is the most likely diagnosis?

21 years old female patient on oral contraceptives presenting with vulvar erythema and a thick white vaginal “cottage cheese” discharge + culture shows growth of pseudohyphea?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IFZ1bHZvdmFnaW5hbCBjYW5kaWRpYXNpcy4=[Qq]

[q] What is the most likely diagnosis?

35 years old patient who is hospitalized in ICU after bowel resection due to Crohn’s disease is dependent on parenteral nutrition through central venous access presenting with fever, hypotension, tachycardia + Blood culture is negative for bacteria with growth of pseudohyphra?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IE5vc29jb21pYWwgYmxvb2Qgc3RyZWFtIGluZmVjdGlvbnMgKEJTSXMpIGR1ZSB0byBjYW5kaWRhIHNwZWNpZXMu

[q] …………. is a fungus exists in the yeast form (single cells) only. It has a thick polysaccharide capsule with antiphagocytic properties. This fungus is present in soil and bird (especially pigeon droppings).

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[f]IENyeXB0b2NvY2N1cyBuZW9mb3JtYW5zLg==[Qq]

[q] ……… is the most likely primary focus of C. neoformans infection

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[q] The diagnosis of pulmonary cryptococcosis is made by microscopic examination of bronchopulmonary washings and lung tissue. Cryptococcal yeast appears red on mucicarmine stain. Mucicarmine stain is used to detect ………….. of Cryptococcus neoformans.

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[f]IHRoZSBwb2x5c2FjY2hhcmlkZSBjYXBzdWxlLg==

[q]……… is the most common presentation of Cryptococcus neoformans infection.

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[f]IE1lbmluZ2l0aXMu[Qq]

[q] Diagnosis of cryptococcal meningitis is made by examining cerebrospinal fluid stained with ………….?

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[f]IEluZGlhIGluay4=

VGhlIEluZGlhIGluayBwcmVwYXJhdGlvbiBzdGFpbnMgdGhlIGJhY2tncm91bmQgd2hpbGUgdGhlIG9yZ2FuaXNtIHJlbWFpbnMgdHJhbnNwYXJlbnQgKG5lZ2F0aXZlIHN0YWluIHRlY2huaXF1ZSkuIFRoZSB0aGljayBwb2x5c2FjY2hhcmlkZSBjYXBzdWxlIHN1cnJvdW5kaW5nIHRoZSB5ZWFzdCBpcyBzZWVuIGFzIGEgcGVyaXBoZXJhbCBjbGVhcmluZyBiZXR3ZWVuIHRoZSBiYWNrZ3JvdW5kIGFuZCB0aGUgZGFyayBjZW50cmFsIHBhcnQgb2YgdGhlIG9yZ2FuaXNtIOKAnFNvYXAgYnViYmxl4oCdIGxlc2lvbnMgaW4gYnJhaW4u

[q] ………. exist in mold form only. They form broad, nonseptate hyphae that branch at wide, often 90° angles. This fungus is very strongly associated with diabetic ketoacidosis.

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[f]IE11Y29yLCBSaGl6b3B1cywgYW5kIEFic2lkaWEu[Qq]

[q] What is the most likely diagnosis?

27 years old diabetic patient presenting with facial and periorbital pain, headache, and purulent nasal discharge, and Black eschar (necrotic tissue) seen on the nasal turbinates + light microscopy of a tissue specimen shows broad, nonseptate hyphae that branch at wide, often 90° angles. ?

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[f]IE11Y29ybXljb3Npcy4=[Qq]

[q] What is the most likely diagnosis?

HIV positive patient with CD4 count less than 200 presenting with low grade fever, dyspnea, nonproductive cough + Diffuse, bilateral ground-glass opacities on CXR/CT + Bronchoalveolar lavage sample shows Disc-shaped yeast forms on methenamine silver stain?

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[f]IFBuZXVtb25pYSBkdWUgdG8gUG5ldW1vY3lzdGlzIGppcm92ZWNpaSBpbmZlY3Rpb24u[Qq]

[q] ……… is the most common enteric parasite in the U.S. and Canada, and is a common cause of diarrhea in campers/hikers.

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[q] Conditions causing ….. deficiency predispose patients to chronic giardiasis.

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[f]IElnQS4=[Qq]

[q] What is the most likely diagnosis?

19 years old patient who was in camping trip presenting with Bloating, flatulence, foul-smelling, fatty diarrhea + iodine-stained stool smear shows parasitic cysts below?

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[f]IEdpYXJkaWFzaXMu[Qq]

[q] What is the most likely diagnosis?

19 years old patient who presenting with inflammatory bloody diarrhea, abdominal pain, and flask-shaped ulcer on clonic mucosa+ tissue biopsy shows trophozoites with RBCs in the cytoplasm (the image below)?

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[f]IEFtZWJpYXNpcy4=

VHJlYXRtZW50OiBNZXRyb25pZGF6b2xlOyBpb2RvcXVpbm9sIGZvciBhc3ltcHRvbWF0aWMgY3lzdCBwYXNzZXJzLg==[Qq]

[q] What is the most likely diagnosis?

HIV positive patient with CD4 count less than 100 presenting with Severe chronic diarrhea + stool shows Oocysts on acid-fast stain?

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[f]IENyeXB0b3Nwb3JpZGlvc2lzIGR1ZSB0byBDcnlwdG9zcG9yaWRpdW0gcGFydnVtIGluZmVjdGlvbi4=[Qq]

[q] What is the most likely diagnosis?

HIV positive patient with CD4 count less than 100 presenting with fever, headache, altered mental status, focal neurologic findings, and seizures + MRI or contrast CT of the brain demonstrates multiple ring-enhancing lesions in both hemispheres?

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[f]IFRveG9wbGFzbW9zaXMgZHVlIHRvIFRveG9wbGFzbWEgZ29uZGlpIGluZmVjdGlvbi4=

[q] Hydrocephalus, intracranial calcifications and chorioretinitis form the classic triad of congenital ………..?

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[f]IHRveG9wbGFzbW9zaXMu[Qq]

[q] Pregnant women should be warned not to handle cat litter in order to prevent contact with …………., which is often found in cat feces?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IFRveG9wbGFzbWEu

Rmlyc3QtbGluZSB0cmVhdG1lbnQgb2YgdG94b3BsYXNtb3NpcyBpbmNsdWRlcyBhIGNvbWJpbmF0aW9uIG9mIHB5cmltZXRoYW1pbmUgYW5kIHN1bGZhZGlhemluZS4=[Qq]

[q] What is the most likely diagnosis?

27 years old patient presenting with meningoencephalitis after swimming in freshwater lake + motile trophozoites in CSF?

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[f]IE5hZWdsZXJpYSBmb3dsZXJpIGluZmVjdGlvbi4=

[q] What is the most likely diagnosis?

27 years old patient presenting with recurring fever, somnolence after being bitten by fly that left Indurated chancre at bite site (painful bite), and enlarged lymph nodes?

[c]IFNob3cgbWUgdG hlIGFuc3dlcg==[Qq]

[f]IFRyeXBhbm9zb21hIGJydWNlaS4=[Qq]

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