NBME MICROBIOLOGY REVIEWED EXAM 2023/2024

NBME MICROBIOLOGY REVIEWED EXAM 2023/2024 India ink for - CORRECT ANSWER-Cryptococcus neoformans Silver stain for - CORRECT ANSWER-Fungi, Legionella, H. pylori Thayer Martin media for - CORRECT ANSWER-N. gonorrheae, N. meningitidis Tellurite plate for - CORRECT ANSWER-C. diphtheriae Löffler's media for - CORRECT ANSWER-C. diptheriae Charcoal yeast media for - CORRECT ANSWER-Legionella Sabouraud's agar for - CORRECT ANSWER-Fungi Obligate intracellulars - CORRECT ANSWER-Rickettsia Chlamydia Catalase positives - CORRECT ANSWER-Pseudomonas Listeria Aspergillus Candida E. coli S. aureus Serratia Urease positives - CORRECT ANSWER-Cryptococcus H. pylori Proteus Ureaplasma Nocardia Klebsiella S. epidermidis S. saprophyticus Yellow sulfur granules - CORRECT ANSWER-Actinomyces israelii Yellow pigment colonies - CORRECT ANSWER-S. aureus Blue-green pigment colonies - CORRECT ANSWER-Pseudomonas aeruginosa Red pigment colonies - CORRECT ANSWER-Serratia marcescens Binds Fc region of immunoglobulin - CORRECT ANSWER-Protein A (S. aureus) IgA protease expressed by - CORRECT ANSWER-S. pneumoniae H. influenzae Neisseria M protein expressed by - CORRECT ANSWER-Group A Strep (pyogenes) Diphtheria toxin causes - CORRECT ANSWER-pharyngitis with pseudomembranes, and bull neck Shiga toxin causes - CORRECT ANSWER-dysentery and hemolytic uremic syndrome Shiga like toxin causes - CORRECT ANSWER-hemolytic uremic syndrome Shiga like toxin expressed by - CORRECT ANSWER-EHEC Heat labile toxin expressed by - CORRECT ANSWER-ETEC Heat stable toxin expressed by - CORRECT ANSWER-ETEC Heat labile toxin moa - CORRECT ANSWER-inc cAMP Heat stable toxin moa - CORRECT ANSWER-inc cGMP Edema factor expressed by - CORRECT ANSWER-Bacillus anthracis Cholera toxin moa - CORRECT ANSWER-permanently activates Gs Rice water diarrhea - CORRECT ANSWER-Vibrio cholerae Pertussis toxin moa - CORRECT ANSWER-disables Gi, impairs phagocytosis Whooping cough caused by - CORRECT ANSWER-Bordatella pertussis Tetanus toxin moa - CORRECT ANSWER-prevents release of GABA and glycine Botulinum toxin moa - CORRECT ANSWER-prevents ACh release Alpha toxin expressed by - CORRECT ANSWER-Clostridium perfringens Gas gangrene caused by - CORRECT ANSWER-Clostridium perfringens Streptolysin O expressed by - CORRECT ANSWER-S. pyogenes Streptolysin O effect - CORRECT ANSWER-lyses RBC Positive ASO titer diagnostic for - CORRECT ANSWER-rheumatic fever Toxic Shock syndrome caused by - CORRECT ANSWER-S. aureus, S. pyogenes Toxic Shock Syndrome Toxin (TSST-1) expressed by - CORRECT ANSWER-S. aureus Exotoxin A expressed by - CORRECT ANSWER-S. pyogenes Endotoxins moa - CORRECT ANSWER-Activate macrophages, activate complement, activate tissue factor Coagulase + - CORRECT ANSWER-S. aureus Catalase + - CORRECT ANSWER-Staphylococcus Catalase - - CORRECT ANSWER-Streptococcus alpha hemolytics - CORRECT ANSWER-S. pneumoniae Viridans strep beta hemolytics - CORRECT ANSWER-S. pyogenes S. agalactiae gamma hemolytics - CORRECT ANSWER-Enterococcus Green ring around colonies - CORRECT ANSWER-alpha hemolytics Clear area around colonies - CORRECT ANSWER-beta hemolytics Infects prosthetic devices and IV catheters by producing biofilms - CORRECT ANSWER-S. epidermidis Lancet shaped - CORRECT ANSWER-Strep. pneumoniae Rusty sputum - CORRECT ANSWER-Strep. pneumoniae Normal flora of oropharynx - CORRECT ANSWER-viridans strep Strep. sanguis causes - CORRECT ANSWER-endocarditis Causes impetigo - CORRECT ANSWER-Strep. pyogenes Causes scarlet fever - CORRECT ANSWER-Strep. pyogenes JONES criteria - CORRECT ANSWER-for rheumatic fever: joints (carditis) nodules erythema marginatum sydenham's chorea Rash sparing face; strawberry tongue; red throat - CORRECT ANSWER-Scarlet fever Cause illness in babies - CORRECT ANSWER-Group B Strep (agalactiae) Strep. bovis in blood culture or endocarditis indicates - CORRECT ANSWER-colon cancer Metachromatic red and blue granules - CORRECT ANSWER-Corynebacterium diphtheriae Dipicolinic acid in - CORRECT ANSWER-bacterial spores Spore forming bacteria in soil - CORRECT ANSWER-Bacillus anthracis Clostridium perfringens C. tetani Non-soil spore forming bacteria - CORRECT ANSWER-B. cereus C. botulinum Coxiella burnetii Ingestion of honey spores - CORRECT ANSWER-C. botulinum Floppy baby syndrome - CORRECT ANSWER-C. botulinum Toxin B expressed by - CORRECT ANSWER-C. difficile Only bacterium with polypeptide capsule containing D-glutamate - CORRECT ANSWER-Bacillus anthracis Painless black eschar - CORRECT ANSWER-cutaneous anthrax Lethal factor and edema factor expressed by - CORRECT ANSWER-B. anthracis Woolsorter's disease - CORRECT ANSWER-pulmonary anthrax