Anti-infectives Flashcards
Narrow Spectrum of Activity
Effective against only a few microorganisms
Broad spectrum of Activity
Treating a wide variety of infections
Goal of anti-invectives
Make bacteria to a level where our immune system can fight the bacteria
Bacterialstatic
Prevents reproduction
Bacterialcidal
Kills bacteria
Steps of anti-invectives (3)
- Culture
- Broad spectrum
- Narrow spectrum (once culture is completed)
What causes resistance to anti-invectives?
Not completing the Rx
Combination therapy
Is using 2 narrow spectrum anti-infectives (smaller dose) to create synergistic effects
Side effects of anti-invectives (5)
- Kidney damage
- GI tract toxicity
- Neurotoxicity
- Hypersensitivity reactions
- Superinfections
What is typically ordered with anti-infective to prevent side-effects?
Either Probiotic or have the pt. eat yogurt
Penicillin contraindications (3)
- Cross-sensitivity with cephalosporins
- Nephrotoxic
- Older adults (decreased kidney function)
Penicillin side effects
-diarrhea associated with c.diff
Penicillin drug-drug interactions
- Decrease effectiveness with erythromycin and tetracycline
- Decrease effects of oral contraceptives
Penicillin examples (6)
- Penicillin G
- Amoxicillin (Amoxil)
- Naficillin
- Oxacillin
- Ampicillin
Penicillin suffix
-cillin
Beta-lactamase inhibitors indications/functions
-Used in conjunction with other broad spectrum antibiotics, making them more effective and extending the antimicrobiano effects
Beta-lactamase inhibitor examples (3)
- clavulanic acid
- sulbactam
- tazobactam
Cephalosporins drug-drug interactions (2)
- Increased nephrotoxicity with aminoglycosdes and NSAIDs
- Increased risk of bleeding when used with anti-coagulation
Examples of Cephalosporins (6)
- cephalexin (Keflex)
- cefaclor (Ceclor)
- cefuroxime (Zinacef)
- Cetriaxone (Rocephin)
- cefepim (Maxipime)
- cefolozane (Zerbaxa)
Macrolides Contraindication
Hepatotoxicity
Macrolides drug-drug interactions
Increased levels of digoxin and anticoagulants
Macrolides examples
- Erythromycin(Eryc)
- azithromycin (Zithromax)
- clarithromycin (Biaxin)
Macrolides suffix
-mycin
Lincosamides and what compared to Macrolides?
More toxic
Lincosamides side effects
Psudomembranos colitis
Lincosamides example
Clindamycin(Clecin)
Tetracycline is a part of what treatment protocol?
H. Pylori
Tetracyclines are not used in what demographic of patient? (2)
- Last trimester
- Young children
Tetracycline side effects (2)
- Damage to bone and teeth
- Photosensitivity
Tetracycline drug-drug interactions (3)
- Decrease oral contraceptive therapy
- Increase digoxin
- Increase warfarin levels
Tetracycline Examples (3)
- doxycycline
- tigecyline (Tygacil)
- tetracycline
Tetracycline suffix
-cycline
Aminoglycosides indication
Treatment of serious infection
Aminoglycosides are given how
IM or IV
What lab tests are essential for Aminoglycosides (2)
- BUN
- Creat.
Aminoglycoside Examples (5)
- amikacin (Amikin)
- gentamicin (Garamycin)
- neomycin
- streptomycin
- tobramycin (Nebcin, Tobrex)
Cabapenems is used for what?
Treatment of serious abdominal, UTI, and gyne infections
Carbapenems drug-drug interaction
Decreases Valproic acid levels, which can lead to increased seizure activity
Cephalosporins Examples (6)
- cephalexin (Keflex)
- cefaclor (Ceclor)
- cefuroxime (Zinacef)
- cefriaxone (Rocephin)
- cefepime (Maxipime)
- cefolozane/tazobactam (Zerbaxa)
Macrolides are not good for what patients
Patients with liver disease
Macrolides drug-drug interactions
Increased levels of digoxin and anticoagulants
Macrolides suffix
-mycin
Macrolides examples (3)
- erythromycin (Erye)
- azithromycin (Zithromax)
- clarithromycin (Biaxin)
Lincosamides indications (4)
- Skin infections
- MRSA
- Gyne infections
- Abdominal infections
Lincosamides examples
clindamycin (Cleocin)
Lincosamides side effects
Psudomembranous colitis
Tetracyclines prevents what?
Cell replication
Tetracyclines is a part of what protocol?
H. Pylori
Tetracycline suffix
-cycline
Tetracycline side effects (2)
- Damage to bones and teeth
- Increased photosensitivity
Tetracycline drug-drug interactions (2)
- Decrease oral contraceptive therapy
- Increase digoxin and warfarin responsiveness
Tetracycline examples (3)
- Doxycycline
- tigecyline (Tygacil)
- tetracycline
Fluoroquinolons what what type of spectrum
Broad spectrum
Fluoroquinolones prevent what?
Cell reproduction
Fluoroquinolones drug-drug interactions (2)
Increases actions of theophylline and warfarin
Fluoroquinolones examples (2)
- ciprofloxacin (Cipro)
- levofloxacin (Levaquin)
Sulfonamides interactions (3)
- Otitis media
- UTI
- Meningitis
Sulfonamides are 90% effective against what?
E. Coli
Sulfonamides have what interaction when paired with sulfonylureas?
Increased the risk for hypoglycemia
Sulfonamides are teratogenic, true or false?
True
Sulfonamides example
Timethoprim/sulfamethoxazole (Septra, Bactrim)
Metronidazole (Flagyl) side effects (2)
- Avoid alcohol
- Dark urine or reddish brown
What patients are susceptible to fungal infections (3)
- AIDS patients
- Patient taking immunosuppressant drugs
- Patients who have had organ transplantation or going through cancer treatment
Amphotericin B is used to treat what?
Severe fungal infections
Amphotericin B has side effects with what systems?
All of them
Nursing interventions for Amphotericin B
- Give IV slowly
- Monitor vital signs every 30 minutes
- Prevent febril reactions and anaphylaxis
- Increase fluids
- Monitor I/O
- Monitor electrolytes, renal, and liver function
Nystatin (Mycostatin) can be given in what ways? (2)
- Oral
- Topical
Nystatin (Mycostatin) uses what when it comes to oral administration
Swish and swallow
Ketoconazole (Nizoral) works similar to what drug?
Amphotericin B
Ketoconazole (Nizoral) blocks what
Human steroids including testosterone and cortisol
Voriconazole indications
Serious skin, abdomen, and wound infections
Voriconazole contraindication
Patients with liver issues
Voriconazole side effects (3)
- Rash
- Visual disturbances
- Pancreatitis
Voriconazole needs what
Loading dose
Fluconazole (Diflucan) indication
Used to treat candidiasis, cryptococcal meningitis, and other systemic fungal infections
Fluconazole can be used prophylacticly, true or fase?
True
Contraindications for Systemic Antifungal Agents (3)
- Patnts with renal or liver disease
- CNS effects
- GI effects
Topical antifungal agent examples (3)
-clotrimazole (Myclex, Lotrimin)
-Miconazole (Monistat)
terbinafine (Lamisil)
Viruses need what to live?
Host cell
Goal of antiviral therapy
Reduce viral load
What viruses respond to antiviral therapy (3)
- Influenza A
- Herpes
- HIV
Goal of cancer treatment
Destroy cancer cells
CCNS stands for
Cell Cycle Non-Specific