What are chemicals for controlling the growth of microbes called?
Disinfectts are _________________.
Chemical agents used on inanimate to lower the level of microbes on their surfaces.
Antoseptics are __________________.
Chemicals used on living tissue to decrease the number of microbes.
Disinfectnants and antiseptics affect bacteria in many ways. Those that result in bacterial death are __________.
Those agents causing temporary inhibition of growth are ______________.
True or false. Antimicrobial agents but be matched to specific organisms and environmental conditions.
Variables in selecting an ntiicrobial agent are ________,________,______,
_____, _________, ___________,
organic material present
Factors in evaluating the effectiveness of antimicrobial agents are :
length of contact
whether it is lethal (-cidal) or inhibiting (static)
What is the DRT?
decimal reduction time
The time it takes to kill 90% of the tst microbial population
The most standard method for measuring the effectiveness of a chemical agent is______________________.
What agent can you use in a use-dilution test?
can't use bacteristatic because it is only temporary and it does not kill the microbes
What type of plate is used for the use-dilution test?
What 3 bacterias are commonly used in use-dilution test?
2. Salmonella enterica Choleraesuis
3. Pseudomonas aeruginosa
To perform a use dilution test _____ are dipped into ________ removed and dried.
The rigs are then placed into a solution of ________ at the concentration recommended by the manufacturer. Of _____ minutes at _____ degrees.
True or false the use-dilution test can be used on bacteriostatic compounds.