Antibiotic Drugs Flashcards
Also known as prokaryotes which are
single-celled organisms that lack a true nucleus and nuclear membrane
Bacteria
Substances that inhibit bacterial growth or kill bacteria and other microorganisms
Antibacterial Drugs
When bacteria is sensitive to the drug?
the pathogen can be inhibited or
destroyed
When bacteria is resistant to the drug?
the pathogen will continue to grow
despite administration
equal to the sum of the effects of two antibiotics
ADDITIVE EFFECT
occurs when one antibiotic increases the effectiveness of the 2nd drug
POTENTIATIVE EFFECT
when two drugs are used together, the desired effect may be greatly reduced
ANTAGONISTIC EFFECT
primarily effective against one type of organism (selective)
NARROW SPECTRUM
effective against gram-positive and gram-negative organisms
BROAD SPECTRUM
when a drug selected is known to
be the best drug that can kill the MO
EMPIRIC THERAPY
once the MO is identified in the
lab, the antibiotic therapy is tailored by using the most
narrow-spectrum, least toxic drug based on C&S results
DEFINITIVE THERAPY
when signs and symptoms do not
improve
SUBTHERAPEUTIC
occurs when the antibiotics reduce
or completely eliminate the normal bacterial flora
SUPERINFECTION
aspirate of the body fluid is
examined under the microscope
Gram stain
aspirated is applied to a medium
where they are grown for several days
Culture
