Urine/Antibiotics Micro Flashcards
Staphylococcus aureus
SSS, cellulitis, impetigo, PMN
Staphylococcus epidermis
SBE (indwelling)
Enterococcus spp.
GI/UTI
Klebsiella pneumoniae
capsule, LRI, UTI, wound, LYS+/ORN=
Enterbacter spp.
K. aerogenes, UTI, LYS/ORN +
Pseudomonas aeruginosa
CRE: VIM (verona Integron-Mdiated Metallo-B-lactamase), NDM, KPC
Mollicutes
Sterols, nucleic acid precursors, serum (fried egg), no cell wall (cocci-stellate)
Mycoplasma hominis/genitalium
bacterial vaginosis, placental inflammation
Ureaplasma spp.
Urethritis
Male biota
Diphtheroids, CNS, Enterococcus
Female biota
Diphtheroids, CNS, lactobacilli, A hemolytic Strep, Enterbacteriaeceae
Urine Media
BAP (blood containing media), MAC
Fluoroquinolones
UTI, Better than lactams, kidney damage
Cell Wall Synthesis
Penicillin, Cephalosporin, Monobactams, Carbapenems, Bacitracin, Vancomycin
Extended Spectrum Penicillin
GNR (pseudomonas aeruginosa)
Cephalosporin
+ tazobactam
Monobactams
GN, 1 beta lactam ring
Carbapenem-Resistant Enterbacteriaceae
K. pnuemoniae,
Clavulanic acid + penicillin
B-lactamase inhibitor (covalent bond)
Sulbactam + ampicillan
Decoy ring for enzymes
Tazobactam + piperacillan
broad spectrum
Bacitracin
GP susceptible to it
IVancomycin
rash, hearing, kidney, VISA, E test MIC
Metabolism: Sulfonamides/Trimethoprim (SXT)
Vitamin B9 folic acid, bacteriostatic, PABA
Photosensitive
Sulfanomides, tetracycline, macrolides,
Protein
tetracycline, macrolides, aminoglycosides (cidal), streptogramins, oxazolidinones
Macrolides (thromycin)
intracellular WBC
IAminoglycosides
30S, gentamycin, tobramycin, streptomycin
Streptogramins
50S, S, pyogenes, S. aureus
Oxazolidinones
VREF, MRSA, protein synthesis
Nucleic acid
Rifamycin, quinolones, metronidazole, nitrofurantoin
Rifamycins
RNA polymerase no transcription
Metronidazole
helical structure, black hairy tongue, trich/giardia/anaerobe
Cell membrane: Polymixin B and colistin
GN anaerobes, topical/IV
ESBL
hydrolyze ES cephalosporin (cefotaxime/ceftriaxone), clavulanic acid, sulbactam, tazobactam inhibit
Modified Hodge
E. coli 25922 lawn, carbapenem disk, organism make e. coli grow (+) (P. aeru not done)
D test, Macrolides
inducible resistance to clindamycin, ERM gene Staph