Flashcards in deck 5 Deck (58)
How many people will never get TSST-1 antibodies?
What bacteria does yellow pus/discharge suggest?
What drug would you give in anticipation of either staph aureus TSS or Group A strep TSS?
vancomycin, clindamycin, and rifampin.[rifampin= mucous membrane penetration. clindamycin= stops toxin production. Vanco=strong Ab.]
What is a left shift in WBC
immature WBC meaning an infection
What are the 5 criteria for staph TSS?
1. Body temp >1022. Systolic BP<903. Diffuse rash/erythroderma4. Desquamation upon recovery5. Involvement of 3 or more organs
What is clindamycin used for?
protein synthesis inhibitor that has the capacity to inhibit exotoxin production at concentrations below its antimicrobial concentration
What does staph aureus need for TSST-1 production?
Does strep TSS need oxygen for production of TSST-1?
No they aerotolerant anaerobes but never use oxygen
What phase of bacterial growth is defined as enzymes being induced to allow bacterial growth?
What phase of bacterial growth is defined by doubling times?
What happens in post-exponential phase of bacterial growth?
toxin--small molecules signal a quorum and induces exotoxin production
What bacterial phase is defined as nutrients used up an growth stops?
What type of bacteria die quickly in death phase?
obligate fermenters [acid, superoxide, H2O2 build up]
What enzymes must obligate aerobes have?
superoxide dismutase SODcatalase
What enzymes must a facultative anaerobe (aerobe) have?
What enzymes do aerotolerant anaerobes have?
SOD, but no catalase
What types of bacteria neither have SOD nor catalase?
What type of bacteria are Bacillus and Mycobacterium?
What type of bacteria is Staph and Escherichia?
What type of bacteria are streptococcus?
What is a microaerophiles?
prefer reduced amounts of oxygen [Neisseria and Borrelia]
What is Gram+, Catalase+, coagulase+?
What groups of bacteria are catalase negative, cocci and gram positive?
streptococci and enterococci
What is gram positive, cocci, catalase negative, B hemolysis and bacitacin sensitive?
Group A strep
What is Gram positive, cocci, catalase negative, a hemolysis, and optochin sensitive?
What type of bacteria is a peptostreptococcus?
anaerobe or aerobe Gram +Rod--listeria?
anaerobe or aerobe Gram +Rod--lactobacillus?
anaerobe or aerobe Gram +Rod--bifidobacterium?