Lab Diagnosis: Bacteria and Fungi
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Questions and Answers

Quales methodos non es implicate in le detection de bacterias?

  • Test de WIDAL
  • Inoculation animal (correct)
  • Microscopie fluorescent
  • PCR

Quale media de cultura es typic in le identification de fungos?

  • Blood agar
  • Luria-Bertani agar
  • MacConkey agar
  • Sabouraud's dextrose agar (correct)

Quale de le sequente non es un methodo molecular pro detection de virus?

  • Reverse transcriptase-PCR
  • PCR
  • Gram stain (correct)
  • Real-time RT-PCR

Quale affirmation sobre le test de immunodiagnostica per parasitas es falsa?

<p>Le test de PCR non applicable pro parasitas. (D)</p> Signup and view all the answers

Quale methodo non es usate pro le detection de antigenos virales?

<p>KOH Preparation (C)</p> Signup and view all the answers

Quale description de microscopie non es correcta?

<p>Le microscopy fluorescent es un standard pro fungi detection. (C)</p> Signup and view all the answers

In le process de identification de bacterias, quales methodos non son automatizados?

<p>Colonia morfologia (B), Test biochimic (D)</p> Signup and view all the answers

Quale non es un methodo usate per isolation de virus?

<p>Direct wet mount (D)</p> Signup and view all the answers

Flashcards

Bacteriological Diagnosis

Methodes for identifying bacterial infection by collecting specimens, direct observation, culture, biochemical testing, and antimicrobial susceptibility.

Microscopy for Pathogens

Using microscopes (light, fluorescence, electron) to observe and identify bacteria, fungi, parasites (and viruses indirectly) in a sample to determine diseases.

Fungal Culture Methods

Cultivating fungi on specific culture medias (Sabourauds, etc.) under controlled conditions for identification, and diagnostics, including temperature and time-dependent growth parameters.

Viral Detection Methods

Direct observation (electron microscopy, fluorescent), antigen detection (ELISA), antibody detection (ELISA), or identification of viral genes (PCR).

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Parasitic Feces Examination

Microscopic examination of feces samples to detect eggs, cysts or other structures of intestinal parasites.

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Molecular Diagnostics

Detecting pathogenic genetic material (DNA or RNA) using molecular techniques such as PCR and rt-PCR to confirm infections.

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Specimen Collection Protocols

Specific guidelines and procedures for collecting biological samples (blood, tissue, etc.) for medical diagnosis, for various pathogens.

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Identifying Bacteria - Automation

Using automated systems (like VITEK, MALDI-TOF) for faster and more accurate identification of bacteria from microbial cultures.

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Study Notes

Lab Diagnosis: Bacteria

  • Specimen collection: Table in pg no. 23
  • Direct detection: Microscopy (Gram stain, acid-fast, Albert, histopathological, dark ground, phase-contrast, fluorescence) and antigen detection from clinical specimens, molecular diagnosis (detecting bacterial DNA or RNA from clinical specimens)
  • Culture: Culture media, culture method, colony morphology, smear and motility testing.
  • Identification: Biochemical identification, automated identification methods (VITEK, MALDI-TOF)
  • Antimicrobial susceptibility testing
  • Serology: WIDAL, VDRL, ELISA
  • Molecular methods: PCR, rt-PCR, CBNAAT
  • Typing methods: Phenotyping and Genotyping

Lab Diagnosis: Fungi

  • Specimen Collection
  • Microscopy: KOH preparation, Gram stain, PAS stain
  • Culture: Culture media (Sabouraud's dextrose agar, Neutral SDA agar, BHI agar, blood agar), Culture condition (temperature, BOD incubators), Culture identification
  • Immunological Methods: Ag detection, Ab detection, IHC
  • Automations: VITEK, MALDI-TOF
  • Molecular Methods: PCR

Lab Diagnosis: Viruses

  • Direct Demonstration of Virus: Electron, Immunoelectron, Fluorescent, Light microscopy (histopathological staining, demonstrating inclusion bodies, immunoperoxidase staining)
  • Detection of Viral Antigens: ELISA, ELFA, direct-IF, ICT, flow-through assays
  • Detection of Specific Antibodies: ELISA, ELFA, ICT, flow-through assays
  • Molecular Methods (detecting viral genes): PCR (DNA detection), Reverse transcriptase-PCR (RNA detection), Real-time PCR (quantifying DNA), Real-time RT-PCR (quantifying RNA)
  • Isolation of Virus: Animal inoculation, Embryonated egg inoculation, Tissue cultures (organ, explant, cell line—primary, secondary, continuous)

Lab Diagnosis: Parasites

  • Specimen Collection, Examination of feces (Macroscopic, Microscopic—direct wet mount, saline mount, iodine mount )
  • Concentration techniques (sedimentation, floatation)
  • Egg counting Methods
  • Examination of blood (direct wet mount, blood smears, quantitative buffy coat)
  • Microscopic examination of other specimens (Table in pg no.94)
  • Immunodiagnostic Methods (Ab, Ag detection tests)
  • Molecular methods (PCR, LAMP, BioFire Film Assay)
  • Other Diagnostic Modalities: Culture techniques, Animal inoculation methods, Imaging techniques

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Description

Este quiz aborda le methodos de diagnosico laboraulier pro bacterias e fungi. Include collection de specimen, detection directa, identification, e test de susceptibilitate antimicrobiana. Examina etiam le methodos molecular e immunologic pro identification precisa.

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