Responsible use of antimicrobials Flashcards
Why is a narrow spectrum antimicrobial preferable?
to target particular groups of bacteria, rather than killing the natural flora
What is a bacteriostatic antibiotic?
stops bacterial reproduction, allowing the immune system to kill the bacteria
What is the mechanism of quinolones?
act on genetic material of bacteria
What is the mechanism of beta lactams?
acts on the cell wall
How does the body eliminate antimicrobial in the system?
- redistribution
- metabolism at the liver
- excretion at the kidney
What components of the genome can transfer resistance?
- plasmids
- transposons
- integrons
What is conjugation?
plasmatic bridge is formed between cells to exchange genetic material
What is transduction?
resistance genes transmitted through bacteriophages
What is transformation?
uptake of free DNA after cell lysis
How can use of antibiotics be modified to reduce resistance risk?
- use sparingly
- use narrow spectrum drugs
- right duration and dose
- use after firm diagnosis and resistance testing
What is a withdrawal period?
prescribed period of time where milk and eggs are not fit for consumption and animals must not go for slaughter