Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Disinfectant |
Antibacterial agents used on inanimate objects |
|
|
Antiseptic |
Antibacterial agents used on living tissues |
|
|
Multiple tube fermentation |
With lactose, inoculated with water samples |
|
|
Durham tube |
Traps gas fermentated in the multiple tube fermentation test |
|
|
Selective media |
Selects for gram - |
|
|
Differential media |
Between coliforms and non-coliform |
|
|
Coliforms |
Lactose fermentators |
|
|
EMB |
Dark purple: vigorously ferments lactose or sucrose Mucoid pink: slow fermenters Colorless: no ferments of lactose or sucrose and is not fecal coliform |
|
|
MacConkey |
Pink = lactose fermenters producing an acidic environment Colorless: non fermentors |
|
|
Hektoen Enteric agar |
Selective and differential for salmonella and Shigella from other enterobacteriacea Yellow = enteric that ferment one or more carb colonies Blue = non-fermenters Black = organisms that reduce sulfur to hydrogen sulfide |
|
|
Readycult coliform |
Blue/green: coliforms are present Ecoli makes blue fluorescence |
|
|
Gram positive cocci |
Responsible for many nosocomial infections |
|
|
Staphylococcus identification |
Catalase positive: breaks down less toxic materials |
|
|
S. Aureus |
Halotolerant and produces several hemolysins |
|
|
S. Saprophyticus |
Normal flora of vaginal tract |
|
|
S. Epidermidus |
Normal skin flora, halotolerant but non hemolytic |
