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NAPLEX
ID 1
| Question | Answer |
|---|---|
| which 2 antibiotic class have a synergistic energy that can be used for infective endocarditis | aminoglycosides and beta-lactams |
| which abx are the cell membrane inhibitors? | Polymyxin, daptomycin, telavancin, oritavancin |
| which abx are the folic acid synthesis inhibitors? | sulfonamide, trimethorpim, dapsone |
| which ones are the cell wall inhibitors? | beta-lactams, monobactams (aztreonam), vancomycin |
| MOA of metronidazole | DNA/RNA inhibitors |
| MOA of macrolides? | protein synthesis inhibitors |
| are aminoglycosides concentration-dependent or time-dependent? | concentration-dependent |
| are beta-lactams concentration-dependent or time-dependent? | time-dependent |
| which of the natural penicillins is not for IV use and can cause cardio-respiratory arrest and death? | Penicillin G benzathine |
| what does augmentin and unasyn have a history of? | cholestatic jaundice or hepatic dysfunction associated with previous use |
| what is the renal cutoff for using amoxicillin/clavulanate ER or the 875mg strength | CrCI <30 |
| brand name for penicillin G benzathine | Bicillin L-A |
| do the antispahylocaccoal penicillins require renal dose adjustments? | no |
| what to do if extravasation occurs with nafcillin? | use cold packs and hyaluronidase injections |
| why is ampicillin PO rarely used? | due to poor bioavailability |
| what drug can increase the levels of beta-lactams by interfering with renal excretion? | probenecid |
| penicillin can increase the serum concentration of what drug? | methotrexate |
| what does nafcillin and oxacillin do to warfarin/ | they inhibit the anticoagulant effect of warfarin |
| what are the exceptions to using penicillins in a patient with a beta-lactam allergy? | treatment of syphilis during pregnancy or in patients with poor adherence/follow up-desensitize and treat with penicillin G benzazthine |