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B -lactams: Carbapenems
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29
Medical
Pre-School
07/13/2012

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Term
synthetic B lactam antibacterials
Definition
carbapenems
Term
UTIs (enterobacter, proteus, pseudomonas), respiratory tract infectiosn (streptococcus pneumoniae and klebsiella pneumonaie) and various noscomial infections (serratia and acinetobacter)
Definition
Imipenem/cilastatin (Primaxin)
Term
similar to imipenem in activity but has greater activity vs gram negative aerobes and less vs gram positive
Definition
meropenem (Merrem IV)
Term
similar to meropenem in activity and exhibits superior activity against Pseudomonas aeruginosa over other carbapenems
Definition
doripenem (Doribax)
Term
similar in activity to imipenem in activity, but is INACTIVE vs Pseudomonas and Acinetobacter
Definition
Ertapenem (Invanz)
Term
useful for empiric therapy since they are active against a wide range of organisms and are resistant to most B lactamases
Definition
carbapenems
Term
administered either IV or IM and well distributed
Definition
carbapenems
Term
metabolized by a renal dehydropeptidase to a potentially nephrotoxic inactive metabolite
Definition
Imipenem
Term
dehydropeptidase inhibitor therefore formulation with imipenem inhibits formulation of toxic metabolite
Definition
Cilastatin
Term
increases urinary concentration of imipenem and permits it to be effective in treatment of UTIs
Definition
Cilastatin
Term
not metabolized by renal dehydropeptidase
therefore do not needt o be given with cilastatin
Definition
meropenem, doripenem, ertapenem
Term
high concentrations of this may induce seizures during renal failure
Definition
primaxin
Term
may induce nausea, vomiting, diarrhea, and skin rashes
Definition
carbapenems
Term
only monobactam on market
Definition
aztrenonam (azactam, Cayston)
Term
also inhibits bacterial cell wall synthesisa and exhibits resistance to inactivation by B lactamases (not carbapenem)
Definition
Aztreonam
Term
ONLY USEFUL against aerobic gram negative bacilli, particuarly Pseudomonas and Serratia
Definition
Aztreonam
Term
Only active vs. G- bacteria particuarly Pseudomonas and Serratia but also: Proteus mirabilis, E. Coli, Klebsiella pneumo, Neisseria, Enterobacter, Haemophilus influenzae, Moraxella catarrhalis, Pasteurella, Citrobacter
Definition
Aztreonam
Term
clinically employed in the treatment of urinary tract and respiratory tract infections
Definition
Aztreonam
Term
POrimary indications include treatment of UTIs (Pseudomonas, E. Coli, Proteus). Due to Klebseilla infections and nocosimal infections (serratia)
Definition
Aztreonam
Term
Improvement of respiratory symptoms in cystic fibrosis pts (7 years and older) w/ Pseudomonas aeruginosa
Definition
Aztreonam
Term
Also indicated for treatment of bacteremias, skin and sot tissue infections, and intra abdominal infections
Definition
Aztreonam
Term
IV, IM, or INHALATION
Definition
Aztreonam
Term
inhalation form of aztreonam is called
Definition
Cayston
Term
Eliminated via kidneys
Definition
Aztreonam
Term
not cross allergenic with other beta lactams
Definition
Aztreonam
Term
Associated w/ skin rashes
Definition
Aztreonam
Term
Gram positive cocci, gram negative rods, anaerobes. Wide spectrum but the significant side effects limit use to life threatening infections or after otehr drugs have failed
Definition
carbapenems
Term
broadest antibacterial activity of any antibiotic known to man
Definition
Imipenem
Term
MRSA, some speudomonas species (not aeruginosa, which is susceptible), and bacteria w/o peptidoglycan walls are still susceptible to our super broad
Definition
Imipenem
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