Laboratory Methods
Colonies that turn black would indicate a positive reaction for this
What is H2S?
Does the following sputum GS result indicate that it is acceptable for culture?
30 pmns/lpf, 5 epi/lpf
What is yes
The medium used for the Kirby-Bauer disk diffusion method
What is Mueller-Hinton?
This gram negative diplococcus ferments glucose and maltose and grows on Thayer-Martin
What is N. meningitidis?
What class (#) biological safety cabinet is encountered in clinical micro labs?
What is Class 2?
Can't survive without oxygen
What is an obligate aerobe?
true or false
2-3 blood culture sets per day are sufficient to detect bacteremia
what is true
The name of a test for MIC determination that consists of a non porous plastic strip with a predefined antibiotic gradient.
What is an E-test?
Green sheen on EMB
What is E.coli?
IMViC= ++--
What is E.coli?
The media that allows for growth of Bordetella pertussis
What is Bordet-Gengou?
true or false
>100,000 cfu/ml of 1 organism indicates a true UTI
what is true
Produced by one microorganism, inhibits growth of another microorganism
What is an antibiotic?
Which strep(s) hydrolyzes bile esculin?
What is Group D?
Stool pathogen that is a NLF, H2S positive and capable of causing typhoid fever
What is Salmonella?
The test that is iseful in determining if an organism is a slow lactose fermenter?
What is ONPG?
true or false
Intracellular gram negative diplococci seen on a slide of a female can be reported out as N. gonorrhoeawhat is false-only males
"Gold standard" disk diffusion method
What is Kirby-Bauer?
Posesses Vi antigen
What is Salmonella typhi?
Is the is reaction (A/K) possible in the TSI test?
What is no. Fermented lactose, but not glucose.
Acetoin is the end-product
What is Voges-Proskeur?
T or F
Bacteria isolated from normally sterile sites may be pathogenic.
What is true?
What is the term for the lowest concentration of an antibiotic that inhibits growth of an organism in a test tube or microplate?
What is the MIC?
Streptococcus pyogenes is bacitracin S or R?
What is sensitive?
All Enterobacteriaceae ferment _________.
What is glucose?