NURS 3110 Lecture Notes - Lecture 5: Salpingitis, Aureus, Sepsis
Document Summary
The cocci of medical importance, gram and cocci: staphylococci (all gram positive) Gram positive cocci: concerned about exotoxins, not endotoxin, stains purple because of cellular wall crystalizing and being trapped. Coagulase - negative staph (s. not aureus: staphylococcus epidermidis (nosocomial esp. from shunts, catheters), causes endocarditis, utis, staphylococcus saprophyticus (2nd most common cause uti in sexually active young women) Catalase (produced by all staph: enzyme breaks down h2o2 to h2o, o2 (bubbles) Toxic shock toxin (produced by s. aureus: causes symptoms of toxic shock syndrome, most common in tampons for women. Enterotoxins: exotoxins that act on gut (food poisoning, not destroyed by heat or gut enzymes, food borne illness. Penicillinase: targets and breaks down penicillin, hydrogen peroxide, and other toxins. With time, temp. , s. aureus grows, releases toxin. E. g egg salad, cream fillings, lime pie. Localized infections: pimple, folliculitis (most common result, suppuration (pus formation, may lead to abscess.
