I&D Flashcards
Exam I
confined collection of pus surrounded by inflamed tissue. Comes to a point.
abscess
This abscess resolves w/o rupture
dry abscess
This abscess is cultured and shows no bacteria growth
sterile abscess
This abscess has signs of inflammation, invaded by pyogenic bacteria
hot abscess
Associated with liquefactive necrosis or tuberculous lesions
cold abscess
abscess formed form a sweat gland or hair follicle
furuncle
furuncle that extends into the subcut tissue
carbuncle
abscess involving the nail cuticle
paronychia
What differentiates an abscess from cellulitis?
abscess stuff is surrounded by a capsule
Most common organism of abscess?
S. aureus, strept (gram neg), anaerobs, enteric organisms
What are risk factors for MRSA?
Previous MRSA, abx tx, hospitalized, IV drug use, contact w/ MRSA, immunocompromised, residents - especially ill ppl, hemodialysis pt
Tx for abscess <5 mm
warm compress, abx
Contraindications for I&D?
Extremely large abscess, facial furuncles, palms of hands and feet, rectum/genitalia, DM, debilitating disease, immuno
What are come complications of I&D?
cellulitis, chronic fistula, infection near tendons…
How would you navigate potential anatomy cautions?
aspirate I&D with 18 gauge needle attached to 10mL syringe- avoid pulling back blood
How do you anesthetize the field that you are I&D?
Field block 1cm away from red border
Tip for culture samples.
Get deep in the wound to avoid skin flora
How many packing ribbons do you place in a wound?
only 1
T/F, a breast abscess is common in a non-lactating women.
False
Treat abscess with abx when (these 5).
Cellulitis or Lymphangitis Diabetics or immunocompromised (change abx therapy once culture results received if necessary) Breast abscess An abscess >0.5cm in diameter MRSA coverage
What drugs are MRSA coverage friendly?
Trimethoprim-sulfamethoxazole DS 1-2 tablets po BID for 5-10 days
Clindamycin 300-600mg orally every 6-8hrs
Doxycycline 100mg BID
IV Vancomycin 15-20mg/kg/dose BID
IV Daptomycin 4mg/kg daily
Who do you give IV abx?
pt who look really sick, septic, previous/current IV drug users, abscess is in the sinus