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ccctc test 9
defenitions for test 9
Question | Answer |
---|---|
allows the body's natural defense mechanisms to have time to destroy the microorganisms by inhibiting bacterial growth. limits or slows the growth of bacteria | bacteriostatic |
kills the microorganisms (bacteria) | bactericidal |
antibacterials | unlike antibiotics, antibacterials are not synthesized from microorganisms. usually bacteriostatic, but some are considered bactericidal. pertaining to a substance that kills bacteria or inhibits their growth or replication. |
side effects of antibacterials | photo sensitivity - protect from the sun, allergy |
antibacterial sulfonamides (sulfa agents) | uses sulfur |
sulfacetamide | sulamyd |
sulfamethoxazole | gantanol |
acetic acid | vosol |
povidone iodine | betadine, medicated douches |
hexachlorophen | pHisoHex |
concentrated in the urine and are used for urinary tract infections | urinary anti-infectives |
nirofurantoin | macrodantin, macrobid |
norfloxacin | noroxin |
note: pyridium (phenazopyridine)is often given with urinary anti-infectives for urinary pain, may discolor urine. what auxilary label should you use | may discolor urine red |
synthesized by microorganisms - grown. can be bacteriostatic or bactericidal. chemotherapeutic agents used to inhibit or kill bacteria | antibiotics |
patient information | most are taken on an empty stomach to ensure proper absorption. should be taken for the full course of therapy. certain liquid antibiotics need refridgerated and certain powders need reconstituted. once reconstituted may only be good for 10-14 days. |
mechanism of action for antibiotics | prevents bacteria from growing |
examples of antibiotics | penicillin and cephalosporins |
side effects of penicillin | allergy, nausea/vomiting, diarrhea |
penicilin | pen-vk |
amoxicillin | amoxil |
ampicilin | amcill |
cloxacillin | tegopen |
dicloxacilin | dynapen |
nafcilin | pipracil |
ticarcillin | ticar |
side effects of cephalosporins | allergy, nausea, vomitting, diarrhea |
first generation cephalosporins are moderate spectrum agents. | they are effective alternatives for treating staphylococcal and streptococcal infections and therefore are alternatives for skin and soft-tissue infections, as well as for strep throat |
cephalexin | keflex |
cefadroxil | duricef |
cefazolin | ancef |
the second generation cephalosporins have a greater gram-negative spectrum while retaining some activity against gram-positive bacteria. | they are also more resistant to beta-lactamase. they are useful agents for treating upper and lower respiratory tract infections, sinusitis and otitis media |
cefaclor | ceclor |
cefprozil | cefzil |
fourth generation cephalosporins are extendced spectrum agents with similar activity against gram positive organisms as first generation cephalosporins. | they also have a greater resistance to beta-lactamase than the third generations cephalosporins. many can cross blood brain barrier and are effective in meningitis. |
have many drug interactions-antacids decrease the absorption and should be given 2-4 hrs apart. tagamet increase the effects. caffeine clearing from the body is reduced. theophyline levels are increased | quinolones |
side effects of quinolones | gi upset and headache |
ciprofloxacin | cipro |
ofloxacin | floxin |
norfloxacin | noroxin |
levofloxacin | levaquin |
moxifloxacin | avelox |
side effects of macrolides | gi upset and diarrhea |
erythromycin | EES, eryc |
azithromycin | zithromax |
clarithromycin | biaxin |
any of a class of a broad spectrum macrolide antibiotic derived from erythromycin | ketolide |
side effects of ketolides | diarrhea, nausea, abdominal pain, vomiting |
side effects of tetracyclines | photosensitivity |
caution: binds to calcium products, aluminum and magnesium. use protection in sunlight | should not be taken with antacids, laxatives, dairy, or iron supplements. they contain calcium and metal ions that bind to the meds and make it inactive. This means they won't work. |
tetracycline | sumycin |
what happened to tetracycline | it was taken off the market |
doxycycline | vibramycin |
minocycline | minocin |
a new class of antibiotics derived from tetracycline. these tetracycline analogues are specifically designed to overcome tetracycline resistant bacteria. | glycylcyclines |
side effects of glycylcyclines | gi upset and diarrhea |
aminoglycisides | used in hospitals |
side effects of gentamicin and tobramycin | kidney damage and ototoxicity |
gentamicin | garamycin |
tobramycin | nebcin |