Mupriocin, Colistin, Fosfomycin, Tigecycline, Daptomycin, Telavancin, Flashcards

1
Q

how is mupirocin administrated

A

topical treatment

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2
Q

what does mupirocin (bactorban) treat

A

MRSA colonization eradication from Nares

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3
Q

what does Colistin cover

A

SPACE bug

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4
Q

what are some adverse effects for Colistin

A

nephrotoxicity

neurotoxicity

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5
Q

Colistin is resistant to what bugs

A

PEK

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6
Q

how is Colistin administered

A

IV
inhaled
intrathecal

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7
Q

fosfomycin (monrol) is used only for what

A

UTI’s

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8
Q

How many times a day do you take fosfomycin

A

1

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9
Q

Tigecycline (tygacil) is what kind of drug

A

static

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10
Q

what type of infections is Tigecycline used for

A

intra-abdominal infection

community acquired penumonia

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11
Q

does Tigacycline treat bacterimia ? whyso?

A

no, does not attain high serum concentrations, easily diffuses into tissue

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12
Q

what is the unique coverage for tigacycline

A

MRSA/VRE
gram (-)
acinetobacter
anaerobes

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13
Q

As a doctor in what situation would you perscribe Tigacycline

A

3rd tier drug,

try 2 other drugs before prescribing

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14
Q

Daptomycin is what kind of drug

A

cidal

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15
Q

what does Daptomycin not cover and why

A

pneumonia, inactivated by pulmonary surfactant

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16
Q

what does Daptomycin cover

A

Gram (+) MRSA, VRE
skin and soft tissue infections
right sided endocarditis

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17
Q

Telavancin can have cross sensitivity with other drug

A

Vancomycin

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18
Q

what are adverse effects for Telavancin

A

red man syndrome
prolonged QT
nephrotoxicity

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19
Q

what does Telavancin cover

A

skin and soft tissue infections

gram (+), MRSA

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20
Q

Do questions at end of powerpoint

A

OKay

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21
Q

all sulfaonamides are similar to what other structure

22
Q

what is PABA a precursor for

A

synthesis of folic acid in bacteria

23
Q

Mechanism of action for sulfaonamides

A

sulfonamides compete with PABA

24
Q

what type of drug is sulfaonamides

25
what is excretion for sulfonamides
glomerular filteration
26
what is sulfonamides commonly treat
acute uncomplicated UTI
27
what are adverse effects of sulfonamides
nephrotoxicity | Kernicterus
28
what is kernicterus
decreases fetal blood levels of unconjugated bilirubin
29
should you give sulfonamides to pregnant ladies
no
30
what do sulfonamides cover
``` staph strep PEK H. flu salmonella shigella chlamydia trachomatis ```
31
what is the mechanism of resistance for sulfonamides
- overproduction of PABA | - decreased permeability of bacteria to the drug
32
Trimethoprin mechanisms of action
inhibits dihydrofolate reductase
33
what type of drug is trimethoprin
static or cidal depending on growth condition
34
why is trimethoprim more toxic than sulfonamides?
interacts with a system also found in humans unlike sulfonamides
35
how is trimethoprim excreted
80% unchanged via glomerular filtration | tubular secretion
36
when do you not give trimethoprim
``` don't use with patients who are alcoholics pregnant women debilitated patients malabsroptive syndromes ```
37
what does trimethoprim treat
acute uncomplicated UTI recurrent UTI prophylaxis traveler's diarrhea
38
what is bactrim
trimethoprim and sulfamethoxazole
39
when do you use Bactrim
``` UTI RTI GI infections STDs stenotrophomonas maltophilia ```
40
Bactrim interacts with what other drugs
Warfin | Methotexate
41
What is the mechanism of action for Nitrofurantoin
unclear
42
where is Nitrofurantoin mostly distributed
urine
43
what are adverse effects of nitrofurantion
peripheral neuropathy | gastriointestinal reactions
44
what are pulmonary adverse effects of nitrofurantoin
hypersensitivity depending on how long on tdurg
45
what do nitrofurantion treat
acute uncomplicated UTI | UTI prophylaxis
46
what is the mechansism of actin for methenamine
- no antibacterial effect alone | - hydrolyzed to formaldehyde which kills bacteria in acidic conditions
47
what is the bioavailability for methenamine
excellent
48
you should avoid using methenamine in what patients
hepatic insufficiency | renal failure
49
methenamine concentrations in urine are affected by what
hydrolysis of meth to formaldehyde | rate of urine loss from bladder
50
what does methenamine used to treat
UTI prophylaxis ONLY