Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
53 Cards in this Set
- Front
- Back
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) |
|
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 |
|
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 |
|
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 |