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53 Cards in this Set

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What are some examples of third generation cephalosporins?

Rocephin (ceftriaxone)


Ceptaz


Fortaz


Tazidime (ceftazidime)

What are some examples of fourth generation cephalosporins?

Maxipime (cefepime)

What are some examples of fifth generation cephalosporins?

Teflaro (ceftaroline)

How do sulfonamides work? (Action)

Prevent synthesis of folic acid that the bacteria requires for synthesis of purines and nucleic acid

Sulfonamides are ____ and are often _____.

One of the first groups of antibiotics



Combined with another antibiotic

What are some examples of sulfonamides?

Bactrim/Septra


Sulfamethoxazole/Trimethoprim


(Cotremozazole)

Sulfonamides have interactions with:

Sulfonylureas--hypoglycemia


Phenytoin--toxicity


Anticoagulants--hemorrhage


Oral contraceptives--reduce efficacy

Sulfonamides are often used to treat (indications):

UTIs


Respiratory tract infections


Outpatient staph infections

Sulfonimides can cause adverse effects that include:

Anemias


Agranulocytosis


Thrombocytopenia


Photosensitivity


Exfoliative dermatitis


Steven-Johnson syndrome


Epidermal necrosis


Nausea


Vomiting


Diarrhea


Pancreatitis


Hepatotoxicity


Convulsions


Crystalluria


Toxic nephrotis


Headaches


Uticaria


Cough

Sulfonamides are contraindicated:

With those with an allergy to sulfonamides AND sulfites--could have allergy to both



During pregnancy



In infants <2 months old

Indications for penicillins include:

Infections from Gram-positive positive bacteria, including streptococcus spp, enterococcus spp, staphylococcus spp.

What are some examples of penicillins?

Penicillin G


Penicillin V


Nafcillin


Amoxicillin


Ampicillin


Carbenicillin


Pipercillin


Ticarcillin

How do penicillins work?

Penicillins enter the bacteria through the cell wall, find penicillin-binding protein, and prevent cell wall synthesis, resulting in cell death due to cell lysis.

What are the adverse effects of penicillins?

Allergic reactions [including angioedema, puritus (itching), urticaria (hives)- may have allergies to other beta-lactam antibiotics also]





Common adverse effects include nausea, vomiting, diarrhea, abdominal pain



Penicillin interacts with:

MANY!!!



NSAIDs-- more free and active penicillin



Oral contraceptives-- decrease efficacy



Warfarin-- increase bleeding risk



Add others from page 608 table 38.5

What is special about pipercillin?

It is an extended Spectrum penicillin that can kill gram-positive and Gram-negative bacteria

Cephalosporins are _____ antibiotics and are structurally and pharmacologically related to _____.

Semi-synthetic



Penicillins

What are some examples of first generation cephalosporins?

Ancef (cefazolin)


Keflex (cephalexin)

What are first generation cephalosporins used for?

Surgical prophylaxis and staphylococcal infections

Cephalosporins have ____ gram-positive coverage and ____ gram-negative coverage.

Good gram-positive coverage



Limited gram-negative coverage

What routes can first generation cephalosporins be given?

Parenteral and PO forms

What are some examples of second generation cephalosporins?

Mefoxin (cefoxitin)


Zinacef (cefuroxime sodium)

Second generation cephalosporins have ____ gram-positive coverage of first generation.

the same

Second generation cephalosporins have ____ gram-negative coverage of first generation.

better

A second generation cephalosporin that is used prophylactically in abdominal surgeries is ____ because it kills _____.

cefoxitin (Mefoxin) IV


anaerobes

A second generation cephalosporin that is used as surgical prophylaxis is _____ which doesn't kill ____.

cefuroxime (Zinacef--IV) (Ceftin--PO)
anaerobes

Third generation cephalosporins are ____ against gram-negative bacteria.

the most potent group

Third generation cephalosporins are ____ against gram-positive bacteria.

less active

True or False: Cephalosporins are broad spectrum.

True

Ceftriaxone (Rocephin) is a _____ .

third generation cephalosporin

Rocephin is given through the following routes:

IV & IM, once-a-day dosing

Elimination of Rocephin is done by the ____.

liver

______ easily passes meninges and diffuses into CSF to treat CNS infections.

Rocephin

Ceftazidime (Ceptaz, Fortaz, Tazidime) can be given:

IV & IM

____ has excellent gram-negative coverage and spectrum of coverage, but resistance is limiting its usefulness.

Ceftazidime (Ceptaz, Fortaz, Tazidime)

Fourth generation cephalosporins have a ____ spectrum of antibacterial activity against gram-positive bacteria when compared to third generation.

broader spectrum

Fourth generation resembles ____ except that it has ____ activity against _____.

ceftazidime; increased; Enterobacter spp. (gram-negative and positive)

Fourth generation cephalosporins are often used to treat:

UTIs

The fourth generation cephalosporin cefepime (Maxipime) IV is used to treat:

UTIs

Fifth generation cephalosporins have a ___ spectrum of antibiotic activity and are effective against ____.

broader
a wide variety of organisms

Fifth generation cephalosporins are effective against which resistant bacteria? Which medication specifically?

MRSA; ceftaroline (Teflaro--IV)

The adverse effects of cephalosporins are similar to ____ and include:

penicillins
mild diarrhea, abd cramps, rash, pruitus, redness, edema
allergic reactions (for both cephalosporins & penicillins)

Which allergic reactions indicate a pt shouldn't receive penicillins or cephalosporins?

Throat swelling


Hives

Carbapenems are the _____ antibiotics on the market.

Broadest

True or False: Carbapenems are used very often for minimal infections.

False

What is the action of carbapenems?

They inhibit cell wall synthesis.

What kind of organisms do carbapenems work best on?

They work best on gram-positive organisms.

What adverse reaction is big for carbapenems? How can you prevent this reaction?

They can cause seizures. Titrate the dose.

What are some examples of carbapenems?

Primaxin IV (imipenum/cilastatin)


Azactam IV (aztreonam)

What is primaxin used to treat?

Soft tissue infections, septicemia, Etc.

True or False: Primaxin is a broad-spectrum antibiotic.

True

What is azactam used to treat?

Severe systemic infections and UTIs.

Azactam is effective against gram-____ bacteria

Negative