Hu Flashcards
(63 cards)
What is an immunomodulator?
Something that affects body defense system (stimulate or suppress)
Immunomodulators can enhance or inhibit the immune response.
What are pathogens?
Microorganisms that can cause disease.
What are the two main types of bacteria based on Gram staining?
- Gram Positive
- Gram Negative
What type of bacteria has a thick cell wall and stains purple?
Gram Positive
What type of bacteria has a thin cell wall and does not retain the stain?
Gram Negative
What are the three shapes of bacteria?
- Cocci (Spherical)
- Bacilli (Rod-Like)
- Spirilla (Spiral)
Define aerobic bacteria.
Bacteria that use O2.
Define anaerobic bacteria.
Bacteria that do not use O2.
What is acquired resistance in pathogens?
Pathogens can develop genes to survive longer in the body.
How do antibiotics work?
By targeting specific bacterial functions or structures.
What are the classes of antibiotics mentioned?
- Penicillins
- Cephalosporins
- Tetracyclines
- Macrolides
- Aminoglycosides
- Fluoroquinolones
- Sulfonamides
What is the mechanism of action for Penicillins?
Bind to bacterial cell walls, allow water in.
What type of bacteria do Cephalosporins primarily target?
Broad-spectrum, gram - bacteria.
What is the mechanism of action for Tetracyclines?
Inhibits protein synthesis.
What is the primary use for Macrolides?
Inhibits protein synthesis, effective on many gram + and -.
What is a key characteristic of Aminoglycosides?
Inhibit protein synthesis.
What do Fluoroquinolones inhibit?
Bacterial DNA synthesis.
What is the action of Sulfonamides?
Inhibit bacterial synthesis of folic acid.
What is the prototype drug for the Penicillin class?
Penicillin G (PCN).
What are the adverse effects of Penicillin?
- Nausea/vomiting
- Diarrhea
- Pain at site
- Caution with CKD
Before administering a penicillin-class drug, what should a nurse check?
The client’s allergies.
What is the prototype drug for Cephalosporins?
Cefazolin (Ancef).
What are common adverse effects of Cefazolin?
- Rash
- Diarrhea
- Superinfections
- Pain at IV site
What is the prototype drug for Tetracycline?
Tetracycline.