Unit 5 Flashcards
Four most common mechanisms of antibiotic action are
interference with bacterial cell wall synthesis
interference with protein synthesis
interference with replication of nucleic acids (DNA) and
ribonuvleic acid (RNA).
antimetabolite action that disrupts critical metabolic reactions
inside the bacterial cell.
Community Associated Infection:
Healthcare Associated Infection:
Superinfection:
Sulfonamides MOA:
Sulfamethoxazole/trimethoprim (co-
trimoxazole)
inhibit growth of bacteria
Sulfonamides Adverse Effect:
Sulfamethoxazole/trimethoprim (co-
trimoxazole)
allergic reaction, diarrhea, rashes
Sulfonamides Indication:
Sulfamethoxazole/trimethoprim (co-
trimoxazole)
Against gram negative and gram positive
organisms.
Urinary tract infections, respiratory tract
infections
Sulfonamides Contraindication:
Sulfamethoxazole/trimethoprim (co-
trimoxazole)
drug allergy
Penicillin’s MOA:
Amoxicillin, ampicillin, penicillin G and
penicillin V potassium
inhibition of cell wall synthesis
Penicillin’s Adverse Effect:
Amoxicillin, ampicillin, penicillin G and
penicillin V potassium
urticaria, pruritus, angioedema
Penicillin’s Indications:
Amoxicillin, ampicillin, penicillin G and
penicillin V potassium
Gram positive bacteria ex: streptococcus,
enterococcus and staphylococcus
Penicillin’s Contraindications:
Amoxicillin, ampicillin, penicillin G and
penicillin V potassium
drug allergy
Cephalosporin’s MOA:
First Generation: cefazolin
Second Generation: cefoxitin
Third Generation: Ceftazidime
Bactericidal: interferes with bacterial cell wall
synthesis
Cephalosporin’s Adverse Effects:
First Generation: cefazolin
Second Generation: cefoxitin
Third Generation: Ceftazidime
rash, urticaria
Cephalosporin’s Indications:
First Generation: cefazolin
Second Generation: cefoxitin
Third Generation: Ceftazidime
Gram positive, gram negative and anaerobic
bacteria
Cephalosporin’s Contraindications:
First Generation: cefazolin
Second Generation: cefoxitin
Third Generation: Ceftazidime
drug allergy
Macrolides MOA:
Azithromycin, erythromycin
Bacteriostatic (inhibit protein synthesis) with
high concentrations they are bactericidal.
Macrolides Adverse Effects:
Azithromycin, erythromycin
Nausea, vomiting and GI Bleed
Macrolides Indications:
Azithromycin, erythromycin
Streptococcus/upper and lower respiratory
infections
Macrolides Contraindications:
Azithromycin, erythromycin
drug allergy
Tetracycline MOA:
Bacteriostatic (inhibit protein synthesis)
Tetracycline Adverse Effect:
Discoloration of permanent teeth in fetus and
children
Tetracycline Indications:
Chlamydia
Mycoplasma
Rickettsia
Tetracycline Contraindications:
Drug allergy, pregnancy
Aminoglycosides (Gentamicin) MOA:
Prevent protein synthesis in bacteria
Aminoglycosides (Gentamicin) Adverse Effect:
Nephrotoxicity, ototoxicity
Aminoglycosides (Gentamicin) Indications:
Gram negative infections and specific
conditions with gram + cocci
Aminoglycosides (Gentamicin) Contraindications:
drug allergy
Quinolones / Ciprofloxacin MOA:
Destroy bacteria by altering the DNA
Quinolones / Ciprofloxacin Adverse Effect:
Headache, dizziness, increased liver levels,
Rash urticaria
Quinolones / Ciprofloxacin Indications:
Gram negative and selected gram positive
Quinolones / Ciprofloxacin Contraindications:
drug allergy
Antivirals / Acyclovir MOA:
Blocking the activity of a polymerase enzyme
that normally stimulates the synthesis of new
viral genomes
Antivirals / Acyclovir Adverse Effects:
Nausea, diarrhea, headache, burning when
applied topically
Antivirals / Acyclovir Indications:
Herpes, Hepatitis, Varicella
Antivirals / Acyclovir Contraindications:
drug allergy
Antiretroviral MOA:
Reverse Transcriptase Inhibitors: Zidovudine
Protease inhibitor: indinavir
Reverse transcriptase inhibitors: block activity
of the enzyme reverse transcriptase.
Protease inhibitors: inhibit the protease
retroviral enzyme.
Antiretroviral Adverse Effects:
Reverse Transcriptase Inhibitors: Zidovudine
Protease inhibitor: indinavir
Bone marrow suppression, nausea, headache,
weakness
Antiretroviral Indications:
Reverse Transcriptase Inhibitors: Zidovudine
Protease inhibitor: indinavir
HIV Infection
Antiretroviral Contraindications:
Reverse Transcriptase Inhibitors: Zidovudine
Protease inhibitor: indinavir
drug allergy
Isoniazid (INH) MOA:
Inhibit protein synthesis, inhibiting cell wall
synthesis
Isoniazid (INH) Adverse Effect:
Liver toxicity
Isoniazid (INH) Indications:
Tuberculosis
Isoniazid (INH) Contraindications:
drug allergy, renal or liver
dysfunction
Amphotericin B / Flucanazole MOA:
Binding to sterols in the cell membranes of the
fungi which results with death to the cell
Amphotericin B / Flucanazole Adverse Effect:
hepatotoxicity
Amphotericin B / Flucanazole Indication:
Fungal infections
Amphotericin B / Flucanazole Contraindiction:
Drug allergy, liver failure, kidney failure
NSAIDS MOA:
Ibuprofen
Aspirin
Celecoxib- COX 2
Relieve pain, headache, and inflammation by
blocking the chemical activity of the enzyme
called cyclooxygenase (COX)
NSAIDS Adverse Effects:
Ibuprofen
Aspirin
Celecoxib- COX 2
Gastrointestinal problems: heartburn, nausea,
vomiting and gastrointestinal bleeding
NSAIDS Indications:
Ibuprofen
Aspirin
Celecoxib- COX 2
Pain, fever and inflammation
NSAIDS Contraindications:
Ibuprofen
Aspirin
Celecoxib- COX 2
Drug allergy, patients at risk for bleeding
Allopurinol (Ziloprim) MOA:
Inhibition of the enzyme xanthine oxidase,
prevents uric acid production
Allopurinol Adverse Effect:
Aplastic anemia
Allopurinol Indications:
GOUT
Allopurinol Contraindications:
Drug allergy
Cytarabine / Methotrexate (Antimetabolites) MOA:
Cell-cycle specific analogues that work by
antagonizing the actions of key cellular
metabolites
Cytarabine / Methotrexate (Antimetabolites) Adverse Effects:
Hair loss, nausea and vomiting, diarrhea and
myelosuppression
Cytarabine / Methotrexate (Antimetabolites) Indications:
Solid tumors (cytarabine) and hematologic cancers
Cytarabine / Methotrexate (Antimetabolites) Contraindications:
none (?)
Cyclophosphamide / Mechlorethamine (Alkylating Drug) MOA:
Prevent cancer cells from reproducing
Cyclophosphamide / Mechlorethamine (Alkylating Drug) Adverse Effects:
Hemorrhagic cystitis
Cyclophosphamide / Mechlorethamine (Alkylating Drug) Indications:
Malignancies (solid & hematologic tumors)
Cyclophosphamide / Mechlorethamine (Alkylating Drug) Contraindications:
Drug allergy
Doxorubicin MOA:
Blocks DNA synthesis
Doxorubicin Adverse Effects:
Hair loss, nausea & vomiting, myelosuppression
Doxorubicin Indications:
Solid tumors and hematologic malignancies
Doxorubicin Contraindications:
Drug allergy
Cyclosporine MOA:
Suppress certain T-lymphocyte cell lines
Cyclosporine Adverse Effect:
Hypertension, tremors
Cyclosporine Indication:
Prevention of organ rejection
Cyclosporine Contraindication:
Drug allergy, hepatic or renal failure,
hypertension
Active immunization:
Acquired through infection or vaccine
Passive immunization:
Diptheria & tetnus toxoids and acellular
pertussis vaccine MOA:
Vaccine and toxoids that are given
intramuscularly to work by stimulating the
humoral immune system
Diptheria & tetnus toxoids and acellular
pertussis vaccine Adverse Effect:
Fever, rash, soreness at injection site, urticarial,
convulsions, dyspnea
Diptheria & tetnus toxoids and acellular
pertussis vaccine Indications:
Prevention of illness
Diptheria & tetnus toxoids and acellular
pertussis vaccine Contraindications:
Drug allergy, eggs or yeast allergy
Hepatitis B immunoglobulin MOA:
Vaccine and toxoids that are given
intramuscularly to work by stimulating the
humoral immune system
Hepatitis B immunoglobulin Adverse Effect:
Fever, rash, soreness at injection site, urticarial,
convulsions, dyspnea
Hepatitis B immunoglobulin Indication:
Prevention of illness
Hepatitis B immunoglobulin Contraindication:
Drug allergy, eggs or yeast allergy
Influenza MOA:
Vaccine and toxoids that are given
intramuscularly to work by stimulating the
humoral immune system
Influenza Adverse Effect:
Fever, rash, soreness at injection site, urticarial,
convulsions, dyspnea
Influenza Indications:
Prevention of illness
Influenza Contraindications:
Drug allergy, eggs or yeast allergy
Varicella Virus Vaccine MOA:
Vaccine and toxoids that are given
intramuscularly to work by stimulating the
humoral immune system
Varicella Virus Vaccine Adverse Effect:
Fever, rash, soreness at injection site, urticarial,
convulsions, dyspnea
Varicella Virus Vaccine Indications:
Prevention of illness
Varicella Virus Vaccine Contraindications:
Drug allergy, eggs or yeast allergy
Anti-inflammatories are commonly used to treat what condition?
pain and inflammation
pain and inflammation
GI upset
What is superinfection?
An infection caused by a secondary pathogen that can occur during prolonged antibiotic therapy
Penicillin (Penicillin G) mechanism of action
disrupt the cell wall
Adverse effects of ciproflaxacin?
rash, urticaria
Amphotericin B is used for the treatment?
Fungal infection
Acyclovir (Zovirax) is used for the treatment?
Herpes virus
Explain what’s make an antibiotic with a broad spectrum?
is effective against a large number of organisms
What is an antigens?
Foreign agents that elicit a specific immune response
Explain Peak &Trough serum levels?
Trough to be drawn 30- 60 minutes before the next dose is given
Isoniazid (INH) adverse effect?
Liver toxicity
Why culture and sensitivity testing is done?
Identify the drug to control the infecting organism
The purpose of antiretroviral drugs is to?
prevent replication by inhibiting one of the steps
An adverse effect of protease inhibitors, such asIndinavir?
Bone marrow suppression
What is the use tetracycline?
Can be use for chlamydia
Sulfamethoxazole/trimethoprim is a prototype for which drug classification?
Antibiotics
Allopurinol (Zyloprim) is used for what disorders?
Gout
What type of medication can be used for a patient has a urinary tract infection?
Sulfonamides
How antiseptics differ from disinfectants?
Disinfectants are used only on nonliving objects to destroy organisms.
Topical acyclovir adverse effects?
Burning when applied
Therapeutic effects of nonsteroidal anti-inflammatory drugs (NSAIDs)
Antipyretic
If a patient is receiving a dose of a penicillin drug and said he is feeling anxious and is having trouble breathing. What will the nurse do first?
stop antibiotic infusion
Lab to be monitored for zyloprim?
Uric acid, decreased uric acid levels
Describe Natural passive immunization.
can be described as a suspension of live, attenuated or killed microorganism that stimulates production of antibodies?
Methotrexate adverse effect?
Myelosuppression
Mechanism of action for Doxorubicin is:
Blocks DNA synthesis
How do we prevent the spread of the flu?
annual vaccine for prevention
Explains to the patient what is Cytarabine is used for
solid tumor
Explains vaccines
can be described as a suspension of live, attenuated or killed microorganism that stimulates production of antibodies
Explains Community- associated infection?
an infection that is acquired by a person who has not recently been hospitalized or had a medical procedure within the past year