micro 23--Wound Infections

wound repair steps

1. a hematoma develops

2. granulation tissue fills in

3. normal cells of fibroblasts fill in the granulation tissue

hematoma

mass of clotted blood

granulation tissue

new capillary formation

formation of abscesses

blood vessels dialate

WBC degrade tissue and microbes

then it all gets surrounded by collagen

flesh eating disease

necrotizing factors

caused by strep pyogenes, staph aureus, strep aureus, and other bacteria

symptoms are pain, fever, swelling, destruction of skin and muscle

production of toxins resulting in shock and death

penicillin and clindomycin are drugs to treat

gas gangrene

caused by clostridium perfringens

pain and swelling

a toxin kills the cells, the tissue tuns black and spreads

treated with penicillin and clindomycin

tetanus

caused by clostridium tetani

produces a strong neural toxin that blocks nerves that cause muscles to relax

main symptom is uncontrolable muscle contraction

treated with an antitoxin

burn infections

usually caused pseudomonas, which is commonly ound in pools, hot tubs, soaps, contact lens solutions, fruits, plants

likes to infect burns

causes chills, fever, green pus

always use 2 antibiotics or else it will become resistant

penicillin and aminoglycoside

lumpy jaw

caused by actinomyces, a filamentous bacterium

causes abscesses and scars

treated with tetracycline or penisillin

animal bite infections

most caused by pasteurella

produces redness, pain, swelling, and pus

treated with pinicillin

cat scratch disease

caused by bartonella

fever, enlarged lymph nodes (axillary and neck)

can develop encephalitis or endocarditis

usually seen in children

treated with ampicillin

rat bite fever

caused by streptobacillus

causes chills, fevers, headaches, vomiting, joint pain

treated with penicillin

sporotrichosis

caused by fungus Sporothrix

can cause skin ulcers, swollen lymph nodules

treated with itraconazole