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Antiinfective Drugs
Lehne - Chapters 82-89, 91 Taken from Key points
23
Nursing
Undergraduate 3
08/30/2014

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Term
Selective Toxicity
Definition
The ability of a drug to injure invading microbes without injuring cells of the host.
Term
Discuss the effective selection of the most effective antibiotic.
Definition
When treating infection, the therapeutic objective is to produce maximal antimicrobial effects while causing minimal harm.
Term
Name 3 principal factors in selecting the most appropriate antibiotic.
Definition
(1) The identity of the infecting organism (2) drug sensitivity of the infecting organism and (3) host factors, such as the site of infection and the status of host defenses.
Term
Why would one drug be preferred over another?
Definition
greater efficacy, lower toxicity, or more narrow spectrum.
Term
What two host factors are unique to the selection of antibiotics?
Definition
host defenses and infection site.
Term
Name other host factors
Definition
age, pregnancy, and previous drug interactions.
Term
Appropriate indications for prophylactic antimicrobial treatment include...
Definition
(1) certain surgeries, (2) neutropenia, (3) recurrent UTI's (4) patients at risk of bacterial endocarditis. (eg, those with prosthetic heart valves or congenital heart disease.)
Term
Generally speaking, antibiotics should not be combined. However in some situations, combining would be appropriate. Name 4.
Definition
(1) initial treatment of severe infections (2) infection with more than one organism. (3) treatment of tuberculosis (4) treatment of an infection in which combination therapy can greatly enhance antibacterial effects.
Term
Name 4 common instances of misuse of antibiotics, including resistance.
Definition
treatment of untreatable infections (eg, the common cold and most other acute infections of the upper respiratory tract (2) treatment of fever of unknown origin (except in the immunocompromised host) (3) treatment in the absence of adequate bacteriologic information and (4) treatment in the absence of appropriate surgical drainage.
Term
There are two distinct types of MRSA, name them.
Definition
(HA-MRSA) or hospital associated MRSA and (CA-MRSA) community associated MRSA
Term
For HA-MRSA treatment, guidelines stress the importance of 3 different factors. Name them.
Definition
selecting drugs based on the site of the infection, age of the patient, and drug sensitivity of the pathogen.
Term
For complicated skin and soft tissue infections in adults, the preferred drugs are IV Vanco, linezolid(Zyvox),
Definition
IV Vancomycin, linezolid (Zyvox), daptomycin(Cubicin), clindamycin. ....notice 3/4 end w/ the suffix -mycin NOT -ROmycin btw.
Term
The preferred drug for children w/ complicated skin and soft tissue infections is.
Definition
IV Vancomycin
Term
For bacteremia (the presence of bacteria in the blood) or endocarditis (an infection of the inner lining of the heart, chambers, and valves.) the drug of choice for adults or children are...
Definition
IV vanco and daptomycin (Cubicin)
Term
Preferred drugs for pneumonia in adults and children are
Definition
IV Vancomycin, linezolid (Zyvox), and clindamycin.
Term
What drug is used because it has activity against multidrug-resistant gram-positive pathogens, including vancomycin-resistant enterocci (VRE) and methicillin-resistant Staph. aureus (MRSA). For treatment of MRSA, this drug is at least as effective as vancomycin.
Definition
Linezolid (Zyvox) ...a first-in-class oxazolidinone antibiotic.
Term
Mnemonic used to help remember the 12 steps to prevent antimicrobial resistance among hospitalized adults.
Definition
Voluptuous girls taking aerobics, practice using the ten kitchen spoons in bed.
Term
12 steps to prevent antimicrobial resistance among hospitalized adults
Definition
1. vaccinate 2. Get the catheters out 3. Target the pathogen 4. Access the experts 5. Practice antimicrobial control 6. Use local data 7. Treat infection, not contamination 8. Treat infection, not colonization 9. Know when to say no to vanco 10. Stop treatment when infection is cured or unlikely. 11. Isolate the pathogen 12. Break the chain of contagion.
Term
Therapeutic use of Sulfamethoxazole/Trimethoprim
Definition
Not so much of a heavy hitter like your aminoglycosides but more like a blanket. Treats for everything from respiratory, gut issues, renal, bone infect. Broad spectrum antibiotic.
Term
Side effects of Sulfamethoxazole/Trimethoprim
Definition
REMEMBER TMS....Too much sun. TMS stands for Tetracyclines, macrolides, and sulfanamides. Phototoxicity, Fatigue, Nausea, vomiting, diarrhea, crystalluria, toxic epidermal.
Term
Patient teaching/ Sulfanamides
Definition
Notify doc if rash, fever and diarrhea develop, especially if diarrhea contains blood, mucous, or pus. Discuss phototoxicity.
Term
MOA Sulfanamides
Definition
Interferes with bacterial growth by inhibiting bacterial folic acid synthesis through competitive antagonism of PABA.
Term
Drugs that weaken the bacterial cell wall.
Definition
Beta Lactams: Penicillins, Cephalosporins, Monobactams, Carbapenems. Vancomycin and Fosfomycin.
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