Chapter 26: Surgical Infections- MIsc. Flashcards
What is a “stitch” abscess?
- Subcutaneous abscess centered around a subcutaneous stitch, which is a “foreign body”
- treat with drainage and stitch removal
Which bacteria can be found in the stool (colon)?
Anaerobic—Bacteroides fragilis
Aerobic—E. coli
Which bacteria are found in infections from human bites?
- Streptococcus viridans
- S. aureus
- Peptococcus
- Eikenella (treat withAugmentin®)
What are the most common ICU pneumonia bacteria?
Gram-negative organisms
What is Fournier’s gangrene?
- Perineal infection starting classically in the scrotum in patients with diabetes
- treat with triple antibiotics and wide débridement—a surgical emergency!
Does adding antibiotics to peritoneal lavage solution lower the risk of abscess formation?
No
Which antibiotic is used to treat amoeba infection?
Metronidazole (Flagyl®)
Which bacteria commonly infects prosthetic material and central lines?
S. epidermis
What is the antibiotic of choice for Actinomyces?
Penicillin G (exquisitely sensitive)
What is a furuncle?
Staphylococcal abscess that forms in a hair follicle (Think: Follicle = Furuncle)
What is a carbuncle?
- Subcutaneous staphylococcal abscess (usually an extension of a furuncle)
- most commonly seen in patients with diabetes (i.e., rule out diabetes)
What is a felon?
Infection of the finger pad (Think: Felon = Finger printing)
What microscopic finding is associated with Actinomyces?
Sulfur granules
What organism causes tetanus?
Clostridium tetani
What are the signs of tetanus?
- Lockjaw
- muscle spasm
- laryngospasm
- convulsions
- respiratory failure
What are the appropriate prophylactic steps in tetanus-prone (dirty) injury in the following patients:
Three previous immunizations?
None (tetanus toxoid only if >5 years since last toxoid)
What are the appropriate prophylactic steps in tetanus-prone (dirty) injury in the following patients:
Two previous immunizations?
Tetanus toxoid
What are the appropriate prophylactic steps in tetanus-prone (dirty) injury in the following patients:
One previous immunization or none?
Tetanus immunoglobulin IM and tetanus toxoid IM (at different sites!)
What is Fitz-Hugh–Curtis syndrome?
RUQ pain from gonococcal perihepatitis in women
Midline laparotomy wound that drains continuous straw-colored fluid
Fascial dehiscence
POD #1 with bright red wound infection
Streptococcus infection
POD #1 with painful wound and weeping bronze-colored fluid
Clostridial wound infection
67-year-old male POD #5 s/p AAA repair with bloody diarrhea
Ischemic colitis
80-year-old man s/p appendectomy with fever, right-sided facepain, and elevated WBCs
Parotitis
