UNIT 13: BETA-LACTAM ANTIBIOTICS AND OTHER CELL WALL SYNTHESIS INHIBITORS Flashcards
Antimicrobial drug that can eradicate an infection in the **absence of host defense mechanism **
a. Bactericidal
b. Bacteriostatic
a. Bactericidal
Antimicrobial drug that inhibits microbial growth that requires host defense mechanism to eradicate infection
a. Bactericidal
b. Bacteriostatic
b. Bacteriostatic
Antimicrobial drug that kills bacteria
a. Bactericidal
b. Bacteriostatic
a. Bactericidal
Antimicrobial drug that decreases growth of bacteria
a. Bactericidal
b. Bacteriostatic
b. Bacteriostatic
Bactericidal which is a cell wall inhibitor
a. Vancomycin
b. Quinolones
c. Rifampin
d. Metronidazole
a. Vancomycin
Bactericidal that is a Gyrase inhibitor
a. Vancomycin
b. Quinolones
c. Rifampin
d. Metronidazole
b. Quinolones
Bactericidal used for Tuberculosis
a. Vancomycin
b. Quinolones
c. Rifampin
d. Metronidazole
c. Rifampin
Bactericidal used for amoebiasis
a. Vancomycin
b. Quinolones
c. Rifampin
d. Metronidazole
d. Metronidazole
Drugs with structures containing beta-lactam ring
Beta-lactam Antibiotics
Stronger drugs that produce greater adverse effects
Last Resort Antimicrobials
Inhibitor to protect hydrolysable penicillin from inactivation
Beta-Lactamase Inhibitor
Lowest concentration to inhibit growth of an organism
Minimal Inhibitory Concentration
Lowest concentration of killing 99.9% of bacteria
Minimum Bactericidal Concentration
Acts as the initial receptors for penicillin and other beta-lactam antibitocs
Penicillin-Binding Proteins
T/F
PBP2a increases the affinity to drugs; decreases drug resistance
False
Decreases the affinity to drugs; increases drug resistance
Chains of polysaccharides and polypeptides that are cross-linked
Peptidoglycan
A bacterial enzyme involved in the cross-linking of linear peptidoglycan chains
Transpeptidase
T/F
In selective toxicity, It is more toxic to the host than to the invader
False! duh
It’s more toxic for the invader
T/F
Increase permeability; decrease in resistance
luh kala mo false noh
TRUE yan gaga
T/F
Adjunctive agents are Beta-Lactamase Inhibitors that can protect against antibiotic inactivation.
True GAGA
Antibiotic Combinations for Tuberculosis
clue: HINOG
R - Rifampicin
I - Isoniazid
P - Pyrazinamide
E - Ethambutol
Who discovered Penicillin G?
Alexander Flemming
From what microorganism did Penicillin G come from
Penicillium notatum
Penicillin G is primarily used for what infection?
Syphilis
Drugs without Beta-Lactam Rings
Vancomycin
Clindamycin
Fosfomycin
Bacitracin
Erythromycin
DRUGS WITHOUT BETA-LACTAM RINGS ARE CINFUL
T/F
Penicillin G cannot be taken orally because it has low availability and is digested by stomach acid
True
A derivative of Penicillin G that is resistant to stomach acids
Amoxicillin
A drug that prolongs the half-life of penicillin
Probenecid
A drug that inhibits gastric acid and therefore increases bioavailability
Probenecid
Penicillin G is used for what infection
Streptococci
Meningococci
Gram (+) bacilli
Spirochetes: Syphilis & Leptosispirosis
Microbe Resistance to Penicillin G
S. Aureus
N. gonorrhea
Treatment for S. aureus and N. gonorrhea
Ceftriaxone + Doxycycline
T/F
When it comes to enterococci infection, Penicillin G is added with Aminoglycoside to produce a synergistic effect
True
Penicillin V is used for what infection
Oropharyngeal Infection
MOA of Penicillin G
Parental
IV / IM
MOA of Penicillin V
Oral
Known as Anti-Staphylococcal Penicillin
Methicillin, Naficillin, Oxacillin
What infection is treated with Methicillin, Nafcillin, Oxacillin
Staphylococcal infections
Microbe resistance to Methicillin, Nafcillin, Oxacillin
MRSA
MRSE
Treatment for MRSA & MRSE
Vancomycin and Clindamycin and Ceftaroline
Infections treated by Ampicillin and Amoxicillin
Enterococci
Escherichia coli
Haemophilus influenzae
Listeria monocytogenes
Proteus mirabilis
Moraxella catrrhalis
Infections treated by Piperacillin and Ticarcillin
Pseudomonas
Enterobacter
Klebsiella sp.
Nafcillin causes what allergy
Neutropenia
Ampicillin causes what allergy
Maculopapular rashes
Methicillin causes what allergy
Interstitial nephritis
Ampicilin may cause what GI disturbance
Pseudo Membranous Colitis
1st Generation Cephalosphorin drugs
- Cephalexin
- Cefazolin
- Cefadroxil
- Cephalotin
- Cephadrine
- Chephaprin
tips to rember: FaPha
1st Generation Cephalosphorin used for Dermatology Skin Infection
a. Cephalexin
b. Cefazolin
a. Cephalexin
1st Generation Cephalosphorin used for Skin preparation for surgery; skin prophylaxis
a. Cephalexin
b. Cefazolin
b. Cefazolin
2nd Generation Cephalosphorin drugs
- Cefuroxime
- Cefoxitin
- Cefotetan
- Cefamandole
Tips to Remember: Furry Fox; Tan Man
3rd Generation Cephalosphorin drugs used for gonorrhea
a. Ceftriaxone
b. Cefoperazone
c. Ceftazidime
d. Cefixime
e. Both b and C
a. Ceftriaxone
3rd Generation Cephalosphorin drugs used for Pseudomonas
a. Ceftriaxone
b. Cefoperazone
c. Ceftazidime
d. Cefixime
e. Both b and C
e. Both b and C
3rd Generation Cephalosphorin drugs used for gonorrhea (oral route)
a. Ceftriaxone
b. Cefoperazone
c. Ceftazidime
d. Cefixime
e. Both b and C
d. Cefixime
2nd Generation Cephalosphorin drug used for UTI
a. Cefuroxime
b. Cefoxitin
a. Cefuroxime
2nd Generation Cephalosphorin drug used for Anaerobic coverage
a. Cefuroxime
b. Cefoxitin
b. Cefoxitin
4th Generation Cephalosphorin drug used for Pseudomonas
Cefepime
T/F
1st and 2nd Generation of Cephalosphorin drugs can enter CSF when meninges are inflamed
False
It can’t enter :«<
T/F
MRSA is still resistant to 5th Generation of Cephalosphorin and above
False
CEFAZOLIN & CEPHALEXIN treat what infection
- Gram (+) cocci: Staphylococci , Streptococci
- Gram (-) cocci: E. coli; K. pnuemoniae
CEFOFETAN, CEFOXITIN is used for what infection
B. fragilis
CEFAMANDOLE, CEFUROXIME, CEFACLOR is used to treat
H. Influenzae and M. catarrhalis to prevent Acute Otitis Media
Third generation cephalosphorin drug used to treat CNS infection
Ceftazidime
T/F
Ceftazidime, Cefoperazone, Cefotaxime can penetrate blood brain barrier
True
Cefoperazone & Ceftazidime is used for
Pseudomonas
Mahilig si Pseudomonas sa pera at dime
Ceftizoxime is used for
B. fragillis
Ceftriaxone and Cefixime is drug choice for
Gonorrhea
TRYing to FIX gonorrhea
A single infection of CEFTRIAXONE is used for
Acute Otitis Media
Cefepime is used for what infection
- Enterobacter
- Haemophilus
- Neisseria
- Penicillinase-resistant pneumococci
Clinical Use for Astreonam
- Klebsiella
- Pseudomonas
- Serratia
A patient is experiencing clinical effects such as Klebsiella, Pseudomonas, Serratia
a. Carbapenem
b. Astreonam
b. Astreonam
Clinical Use for Carbepenem
- Gram (+) cocci
- Gram (-) rods
- Anaerobes
- Pseudomonal infections
A patient is experiencing the clinical effects such as Pseudomonal infections
a. Carbapenem
b. Astreonam
a. Carbapenem
List 3 Beta-Lactamse Inhibitors
- Clavulanic Acid
- Sulbactam
- Tazobactam
Clavulanic acid + Amoxicillin =
a. Augmentin
b. Ampisul
c. Tazocin
Augmentin
Ampicillin + Sulbactam =
a. Augmentin
b. Ampisul
c. Tazocin
Ampisul
Tazobactam + Piperacillin =
a. Augmentin
b. Ampisul
c. Tazocin
Tazocin
a Bactericial Glycoprotein thats binds to D-Ala-D-Ala terminal of the nascent peptidoglycan
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cyloserine
a. Vancomycin
The MOA of this drug inhibits transglycolation and prevents elongation of peptidoglycan chain
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cyloserine
a. Vancomycin
Clinical use of Vancomycin
- GRAM (+) cocci
- Anaerobes
- MRSA
- Penicillin-Resistant Pneumococci
- Clostridium difficile
A patient is experiencing the following clinical effects GRAM (+) cocci, Anaerobes, MRSA, Penicillin-Resistant Pneumococci, Clostridium difficile
what drug will u give
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cyloserine
a. Vancomycin
T/F Vancomycin has a topical/local effect
True
Oral vancomycin is given to what infection
Bacterial enterocolitis
A diffuse blushing syndrome caused by rapid IV infusion of Vancomycin
Red Man Syndrome
An antimetabolite inhibitor of cytosolic enolpyruvate transferase
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cyloserine
b. Fosfomycin
A patient is experiencing the following toxicities such as Chills, Fever, Phlebitis, Ototoxicity, Nephrotoxicity is due to
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cyloserine
a. Vancomycin
Used for uncomplicated UTI
a. Fosfomycin
b. Ciprofloxacin
a. Fosfomycin
Used for complicated UTI
a. Fosfomycin
b. Ciprofloxacin
b. Ciprofloxacin
Prevents the formation of N-acetylmuramic acid (NAM)
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cycloserine
b. Fosfomycin
A peptide antibiotic that interferes with a late stage in cell wall synthesisin gram (+) organism
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cycloserine
c. Bacitracin
An antimetabolite that blocks the incorporation of D-Ala into the pentapetide sidechain of the peptidoglycan
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cycloserine
d. Cycloserine
Used for Tuberculosis
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cycloserine
d. Cycloserine
A patient is experiencing tremors, seizure, psychosis due to what
a. Vancomycin
b. Fosfomycin
c. Bacitracin
d. Cycloserine
d. Cycloserine
A patient is infected by streptococci, meningococci, gram (+) bacilli, syphilis, leptospirosis. What drug will you give?
a. Penicillin G
b. Penicillin V
a. Penicillin G
A patient has oropharyngeal infection. What drug will you give?
a. Penicillin G
b. Penicillin V
b. Penicillin V
A patient is resistant to MRSA & MRSE. What treamtent will you give
a. Vancomycin
b. Clindamycin
c. Both a & b
c. Both a & b
A patient has the enterococci, eschiichia coli, haemophilus influenzar, listeria monocytogenes, proteus mirabilis, moraxella catarrhalis
PAKE NIYO BA SAKITIN SIYA EH
a. Ampicillin & Amoxicillin
b. Piperacillin & Ticarcillin
a. Ampicillin & Amoxicillin
A patient has Pseudomonas, Enterobacter, and Klebsiella sp. What drug will you give
a. Ampicillin & Amoxicillin
b. Piperacillin & Ticarcillin
b. Piperacillin & Ticarcillin
A patient is experiencing Skin Infections
What 1st Generation drug will you give
a. Cephalexin
b. Cefazolin
c. Cefadroxil
d. Cephalotin
a. Cephalexin
A patient is being prepared for surger / skin prophylaxis
What 1st Generation drug will you give
a. Cephalexin
b. Cefazolin
c. Cefadroxil
d. Cephalotin
b. Cefazolin
Maju has UTI. What 2nd Generation drug will you give her
a. Cefuroxime
b. Cefoxitin
a. Cefuroxime
Gela has B. Fragilis. What 2nd Generation drug will you give her
a. Cefuroxime
b. Cefoxitin
b. Cefoxitin
What are penicillin derivative that crosses the blood-brain barrier
procaine and benzathine
what are there 3 beta-lactamase inhibitors
- Clavulanic Acid
- Sulbactam
- Tazobactam
Known as anti-staphylococcal penicillin
methicillin, nafcillin, oxacillin
Used to treat MRSA and MRSE
Vancomycin & Clindamycin
Treatment for
* Enterococci
* Escherichia coli
* Haemophilus Influenza
* Listeria monocytogenes
* Moxarella catarrhalis
* Proteus mirabilis
Ampicillin and Amoxicillin
Allergy caused by Penicillin
- Urticaria
- Fever
- Hemolytic Anemia
- Severe Pruritus
- Joint Swelling
- Nephritis
GI Disturbance caused by Penicillin
- Usually caused by Penicillin
- Nausea & Diarrhea
- Pseudo Membranous Colitis
T/F
Increase in generation in Cephalosporin is increase activity for gram (+) bacteria; decrease activity for gram (-) bacteria
False
decrease activity for gram (+) bacteria; increase activity for gram (-) bacteria
What is the common moa of cephalosporins
oral route
Third generation cephalosphorin used for B. fragilis
Ceftizoxime
Single injection of ____ is used for acute otitis media
Ceftriaxone
Allergy caused by Cephalosphorin
- Skin rashes to anaphylactic shock
Other beta-lactam drugs that is monobactam
Astreonam
An inhibitor of cell wall synthesis binding to PBP3
Astreonam
Other beta-lactam drugs eliminated via renal tubular secretion
Astreonam
Toxicity caused by Astreonam
- Vertigo
- Headache
- Rare hepatoxicity
- Skin rash
A carbapenem rapidly inactivated by renal rehydropeptidase I
Imipinem
Adverse effects caused by Imipinem-Cilastin
- GI distress
- Skin Rash
- Confusion
- Encephalopathyt
- Seizures
Causes lesions to bacterial cell wall
autolytic enzymes
May cause hypoprothrombinemia
Cefamandole, Cefoperazone, Cefofetan
Cephalosporin that has coverage for MRSA
Ceftaroline
Partly excreted in bile
AMPICILLIN AND NAFCILLIN