Antimicrobial need to knows Flashcards

1
Q

what can measure total cell counts

A

Flow cytometry, Turbidimetry and microscopic count

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2
Q

beta-lactams

A

penicillin and cephalosporin

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3
Q

beta-lactams target

A

Tpase- inhibit peptidoglycan

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4
Q

b-lactams more effective against

A

gram positive- bc more peptidoglycan = more damage

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5
Q

Aminoglycoside 2 examples

A

kanamycin and streptomycin

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6
Q

aminoglycisodes target

A

30S subunit- mRNA misreading - proteins synthesis

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7
Q

aminoglycosides effect on microorganism is

A

bactericidal - kill

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8
Q

Chloramphenicol (chlor-ram-phen-e-coal) target ____

A

23S rRNA (50S) - bacteriostatic - inhibit

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9
Q

Macrolides example

A

Erythromycin (E-rith-row-mycin)

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10
Q

Macrolides and Tetracyclins both block

A

protein synthesis

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11
Q

Macrolides and Chloramphenicols target the ___S subunit while Tetracycline and Aminoglycosides target the ____S subunit

A

50 S, 30 S

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12
Q

Growth factor analogs main example

A

Sulfanilamides (Suf-ann-ill-a-mide)

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13
Q

sulfanilamides ( growth factor analogs) target

A

folic acid synthesis

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14
Q

Nucleic acid base analogs such as ________ target _______

A

5-fluorouracil acyclovir targets mRNA synthesis and viral polymerase

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15
Q

Quinolones such as _______ target _____

A

Cyprofloxacin target DNA gyrase

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16
Q

Ergosterols synthesis example _______ target______

A

Nystatin , Fluconazole target ergosterol synthesis

17
Q

Cyprofloxacin is in ____ class

A

Quinalone

18
Q

Cyprofloxacin inhibits/targets

A

DNA gyrase - inhibiting cell division = bacteriostatic

19
Q

4 drugs that inhibit protein synthesis

A
  1. chloramphenicol (from chloramphenicol group)
  2. Erythromycin ( Macrolides group )
  3. Streptomycin & Kanamycin (Aminoglycoside group)
  4. Tetracyclins (tetracyclines group )
20
Q

which drug inhibits folic acid synthesis

A

Sulfanilamides from the Growth factor analog group

21
Q

Ergosterol synthesis group drugs - examples

A

Nystatin and Fluconazole

22
Q

what is ergosterol

A

analogous to cholesterol in the membrane of animals- only in fungi and yeast

23
Q

Chloramphenicol targets

A

23S rRNA- block peptide elongation and protein synthesis

24
Q

Ciprofloxacin targets

A

DNA gyrase ( part of Quinalone group )

25
Q

Cephalosporin targets

A

Peptidylglycan ( in Beta-lactam group with penicillin)

26
Q

which 4 groups are soley bacteriostatic?

A

Chloramphenicol,

Tetracyclines, Macrolides and Growth factor analougs

27
Q

Which 2 are bactericidal ?

A

Amino glycosides and Quinalones

28
Q

how do beta-lactams interact/kill/inhibit microgranisms?

A

Bacteriostatic, cidcal and lytic