Lectures

Microbiology Question Set 2

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    About the Lecture

    The lecture Microbiology Question Set 2 by Lecturio USMLE is from the course Microbiology – USMLE-Style Questions.


    Included Quiz Questions

    1. Human tetanus immunoglobulin plus primary series of tetanus and diptheria toxoid (Td)
    2. Metronidazole
    3. IV Diazepam
    4. Primary series of tetanus and diptheria toxoid (Td)
    5. Wound debridement
    1. Herpes Simplex Virus-1
    2. Candida albicans
    3. Acanthamoeba
    4. P. aeruginosa
    5. Varicella Zoster
    1. Symptomatic and supportive
    2. Corticosteroids
    3. Aspirin
    4. Penicillin
    5. Ribavirin
    1. Acute exacerbation of chronic HBV infection
    2. Resolved HBV infection, natural immunity
    3. Acute HBV infection
    4. Acute resolving infection
    5. Passive immunity
    1. EBV mononucleosis
    2. Toxoplasma infection
    3. Streptococcal pharyngitis
    4. Acute HIV infection
    5. Rubella
    1. ssRNA enveloped viruses
    2. ssRNA naked viruses
    3. dsRNA enveloped viruses
    4. dsRNA naked viruses
    5. ssDNA enveloped viruses
    1. Polymorphonuclear leukocytosis
    2. Decreased protein content
    3. Elevated glucose concentration
    4. Lymphocytosis
    5. Eosinophilia
    1. HbsAg +, Anti-HbsAg -, Anti-HbcAg IgM -, Anti-HbcAg IgG +, HbeAg +, Anti-HbeAg -
    2. HbsAg +, Anti-HbsAg -, Anti-HbcAg IgM +, Anti-HbcAg IgG -, HbeAg +, Anti-HbeAg -
    3. HbsAg -, Anti-HbsAg +, Anti-HbcAg IgM -, Anti-HbcAg IgG +, HbeAg -, Anti-HbeAg +
    4. HbsAg -, Anti-HbsAg +, Anti-HbcAg IgM -, Anti-HbcAg IgG -, HbeAg -, Anti-HbeAg -
    5. HbsAg -, Anti-HbsAg -, Anti-HbcAg IgM +, Anti-HbcAg IgG -, HbeAg -, Anti-HbeAg +
    1. Gram positive diplococci
    2. Gram positive cocci in clusters
    3. Gram negative diplococci
    4. Gram negative rod
    5. Cannot be seen with gram staining since organism is lacking the cell wall
    1. Colon cancer
    2. Dental caries
    3. Sickle cell disease
    4. Subacute sclerosing panencephalitis
    5. HIV/AIDS
    1. GABA (GABA = Gamma Aminobutyric acid)
    2. Acetylcholine
    3. Norepinephrine
    4. Serotonin
    5. Glutamate
    1. E. Coli
    2. Shigella
    3. Salmonella
    4. Campylobacter jejuni
    5. Entamoeba histolytica
    1. Survives intracellularly within phagocytes of Payer’s patches
    2. Releases a toxin which inactivates 60S ribosomes
    3. Incidence increases after cholecystectomy
    4. Splenectomy may be necessary for the carriers.
    5. Forms blue-green colonies with fruity odor
    1. Erythromycin
    2. Penicillin
    3. Vancomycin
    4. Linezolid
    5. Aztreonam
    1. Anterior horn cells of spinal cord
    2. Myelin sheath of neurons
    3. Posterior horn cells of spinal cord
    4. Muscle cells
    5. Basal ganglia
    1. Cholera toxin - ADP-ribosylates Gs, keeping adenylate cyclase active and ↑ [cAMP]
    2. Tetanospasmin - Binds 60S ribosome and inhibits protein synthesis
    3. Botulinum toxin - Cleaves synaptobrevin, blocking vesicle formation and release of inhibitory neurotransmitters GABA and glycine
    4. Anthrax toxin - ADP-ribosylates EF-2 and inhibits protein synthesis
    5. Diphtheria toxin - Cleaves synaptobrevin, blocking vesicle formation and release of acetylcholine
    1. Gram-negative rod
    2. Gram positive cocci in cluster
    3. Pear shaped motile protozoa
    4. Gram-positive cocci in chains
    5. The organism also is the cause of bacterial vaginosis
    1. Perform a dark ground microscopic examination of the swab.
    2. Blood test to detect the antibodies to herpes simplex.
    3. Swab the chancre and perform a wet mount microscopy.
    4. Swab the chancre and culture on MacConkey medium.
    5. Perform a Frei test confirms the diagnosis.
    1. Praziquantel
    2. Niclosamide
    3. Bethional
    4. Albendazole
    5. Oxamniquine
    1. Chromoblastomycosis
    2. Mycetoma
    3. Rhinosporidiosis
    4. Sporotrichosis
    5. Entomophthoromycoses
    1. Histoplasmosis
    2. Cryptococcosis
    3. Blastomycosis
    4. Sporotrichosis
    5. Coccidioidomycosis
    1. Anthrax
    2. Listeriosis
    3. Erysipeloid
    4. Brucellosis
    5. Tularaemia
    1. Listeriosis
    2. Tularaemia
    3. Brucellosis
    4. Legionnaires’ disease
    5. Influenza
    1. Pseudomonas auroginosa
    2. Staphylococcus aureus
    3. Streptococcus pyogen
    4. Staphylococcus epidermis
    5. Enterococcus faecalis
    1. Doxycyline
    2. Clindamycin
    3. Boric acid
    4. Metranidazole
    5. Acyclovir
    1. Gastroesophageal reflux disease
    2. Gastric adenocarcinoma
    3. Gastric MALT (mucosa-associated lymphoid tissue) lymphoma
    4. Duodenal ulcer disease
    5. Peptic ulcer disease
    1. Toxocariasis
    2. Trichinellosis
    3. Staphylococcus lugdunensis
    4. Cysticercus
    5. Giardiasis
    1. Actinomycetes
    2. Eikenella corrodens
    3. Rhizopus
    4. Peptostreptococcus
    5. Nocardia
    1. Coagulase-negative staphylococci
    2. Enterococcus
    3. Escherichia coli
    4. Candida albicans
    5. Pseudomonas aeruginosa
    1. Novobiocin sensitive
    2. Coagulase positive
    3. DNAse positive
    4. Optochin sensitive
    5. Hemolysis
    1. Antigenic variation
    2. Antigenic mimicry
    3. Non-DNA genome
    4. Tolerance
    5. Polysaccharide envelope
    1. Herpes simplex virus
    2. Human Papilloma virus
    3. Treponema pallidum
    4. Haemophilus ducreyi
    5. Chlamydia trachomatis
    1. Epstein-Barr virus
    2. Human Immunodeficiency virus (HIV)
    3. Measles
    4. Human Papilloma virus
    5. Parvovirus B19
    1. Ixodes scapularis
    2. Dermacentor variabilis
    3. Anopheles
    4. Tsetse fly
    5. Culicidae
    1. Trimethoprim-sulfamethoxazole
    2. Amphotericin B
    3. Ganciclovir
    4. Azithromycin
    5. Highly active antiretroviral therapy (HAART)
    1. Inoculation in selective agar media needs incubation at 35-37C for up to 8 weeks
    2. Stains of gastric washing and urine have higher yield on microscopy
    3. A positive tuberculin test would be diagnostic of active infection
    4. DNA PCR has poor sensitivity when applied to smear positive specimens
    5. Ziehl-Neelsen staining is more sensitive than fluorescence microscopy with auramine-rhodamine stain.
    1. It can lead to hydrops fetalis secondary to fetal anemia
    2. Fetal loss occurs in more than 40% of primary infections
    3. The neonate may be born with a typical ‘slapped-cheek’ rash
    4. Physical malformations are frequently associated with congenital infection
    5. It can cause aplastic crisis in the neonate
    1. Polymerase chain reaction for HIV DNA
    2. EIA for HIV antibody
    3. Antigen assay for p24
    4. Viral culture
    5. CD4 cell count
    1. Blocks the release of acetylcholine
    2. Reduction of neurotransmitter GABA
    3. Acts as a superantigen
    4. Interferes with 60s ribosomal subunit
    5. Stimulates adenylate cyclase
    1. Production of beta-lactamase enzyme
    2. Drug efflux pump
    3. Altering structural target for the drug
    4. Use of an altered metabolic pathway
    5. Intrinsic absence of target site for the drug
    1. Inhibition of DNA polymerase
    2. Binding with ergosterol in cell membrane
    3. Cell wall synthesis inhibitor
    4. Nucleoside reverse transcriptase inhibitor
    5. Fusion inhibitor
    1. Epstein-Barr Virus.
    2. Cytomegalovirus
    3. Varicella virus.
    4. Herpes Simplex virus
    5. Variola virus
    1. Mycoplasma pneumonia
    2. Staphylococcus pneumonia
    3. Legionella pneumophila
    4. Haemophilus Influenza
    5. Streptococcus pneumonia
    1. Counsel about the possibility of congenital defect in her baby and termination of pregnancy
    2. Haemagglutination inhibition (HAI) assay.
    3. Administer acetaminophen.
    4. Administer antibodies.
    5. Administer rubella vaccine
    1. Positive oxidase test and ability to ferment glucose and maltose.
    2. Positive oxidase test but inability to ferment glucose and maltose
    3. Growth on Thayer – Martin medium
    4. Growth in air
    5. Grow in colonies
    1. Streptococcus pneumoniae
    2. Staphylococcus aureus
    3. Neisseria meningitidis
    4. Staphylococcus epidermidis
    5. Streptococcus agalactiae
    1. Trichomoniasis
    2. Bacterial vaginosis
    3. Vulvovaginal candidiasis
    4. Atrophic vaginitis
    5. Chlamydia
    1. String test
    2. Catalase test
    3. Paul – Bunnell test
    4. Tzanck smear
    5. Urease breath test
    1. Genital herpes
    2. Gonorrhea
    3. Syphilis
    4. Condyloma acuminate
    5. Trichomoniasis
    1. Penicillin
    2. Tetracycline
    3. Doxycycline
    4. Ibuprofen
    5. Gentamicin

    Author of lecture Microbiology Question Set 2

     Lecturio USMLE

    Lecturio USMLE


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