Maxillofacial Infections Flashcards

(48 cards)

1
Q

General principles for Antibiotics.

A

NETCC

Necessary
Efficacy
Toxicity
Compliance
Cost
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2
Q

Easiest way to tell if there’s an infection.

A

Take temperature

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3
Q

Abs that can make the patient deaf.

A

Aminogylcoside abs

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4
Q

These can getrid of cellulitis, but NOT an abscess.

A

Antibiotics

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5
Q

Only way to get rid of an abscess.

A

Drain it.

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6
Q

Difference between cellulitis and an abscess.

A

Cellulitis is generalized inflammation WITHOUT pus.

An abscess has pus.

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7
Q

Local signs of an infection

A

Pain, edema, erythema, heat, loss of function

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8
Q

A typical odontogenic infection is pure or mixed?

A

Mixed infection containing 10-15 different bacterial species.

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9
Q

These types of bacteria make penicillinases to break down penicillin.

A

Gram negatives

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10
Q

Animal studies are positive and no human studies have been done.

A

FDA Class C drug

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11
Q

Most antibiotics are what FDA class?

A

C

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12
Q

Metabolizes 50% of all clinical drugs.

A

CYP3A

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13
Q

Inhibits CYP3A

A

grapefruit juice

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14
Q

A generalized inflammatory response.

A

Cellulitis

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15
Q

Localized accumulation of purulent exudate in an anatomic space.

A

Abscess

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16
Q

Most common reason why an antibiotic is not working.

A

Compliance

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17
Q

3 factors FDA looks at to determine if a generic drug can be used in place of a brand-name drug.

A

1) Bioequivalence
2) Reliability
3) Therapeutic equivalence

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18
Q

When do drugs expire by the expiration date listed on the bottle?

A

Once they’re opened

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19
Q

The expiration date on the bottle means almost nothing, with the exception of ____.

A

Epinephrine

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20
Q

These drugs cause the kidney tubules to necrose if taken after the expiration date.

A

Tetracyclines

21
Q

This drug loses 90 % of its potency 10 months after the expiration date.

A

Epinephrine.

Esp. important in an EpiPen

22
Q

Antibiotics and pregnancy.

A

Can increase chances of getting pregnant bc it prevents the oral contraceptives from working properly.

23
Q

This antibiotic DEFINITELY DECREASES the effect of oral contraceptives to increase chances of getting pregnant.

24
Q

Ab used for Tuberculosis.

25
Must tell this to women before you give them antibiotics.
Increased chance of pregnancy bc oral contraceptives aren't as effective.
26
BacteriCIDAL Antibiotics
1) Beta Lactam antibiotics (Penicillin and Cephalosporins). 2) Clindamycin 3) Metronidazole 4) Fluoroquinolones
27
Types of beta lactam antibiotics.
1) Penicillins | 2) Cephalosporins
28
An aminopenicillin
Amoxicillin
29
This ab has a broader spectrum against gram negatives, but is more toxic.
Aminopenicillins.
30
Augmentin contains what?
Amoxicillin with clavulanic acid.
31
Role of clavulanic acid.
Binds to beta lactamases so that Amoxicillin can kill it quicker.
32
These antibiotics inhibit bacterial cell wall synthesis.
Beta-lactam antibiotics
33
How are penicillins eliminated from the body?
Kidneys mostly
34
Ab of choice for pregnant patients.
PENICILLIN
35
Are penicillins distributed in the breast milk?
YES, so baby can get candidiasis.
36
How are penicillins given to the geriatric population?
As Na and K salts, which can increase BP, decrease the effects of diuretics, and worsen heart failure.
37
Bactericidal abs only work if the microorganism is actively ______.
Growing
38
Why should you never combine bacteriostatic and bactericidal abs in a patient?
Bc bactericidal abs need actively growing organisms in order to work. The bacteriostatic abs would stop the bacterial growth, so the bactericidal abs would be useless.
39
How do Penicillins interact with anticoagulants.
Alter Vit K synthesis by gut flora.
40
Low dose Clindamycin is bacterio____.
static
41
High dose Clindamycin is bacterio_____.
cidal
42
Penicillins and other abs can cause this life-threatening disease. Lots of bloody diarrhea.
pseudomembranous colitis
43
Enzymes made by bacteria to break down beta lactam antibiotics.
Beta lactamases
44
The only ab that causes bad side effects when taken with alcohol.
Cephalosporins
45
Less likely to cause pseudomembranous colitis, andused if allergic to penicillins.
Clindamycin
46
Only works against obligate anaerobes, which are rarely present in an odontogenic infection.
Metronidazole.
47
Patient cannot drink alcohol with these two antibiotics.
Cephalosporins and Metronidazole
48
Causes metallic taste and altered taste sensations, and dark urine.
Metronidazole