HIGH YIELD Flashcards
1
Q
50 M DM came in with acute red swollen right
knee with fever. Arthrocentesis shows cloudy, WBC 500,000, PMN 90%, gram stain shows gram negative rods.
What is the most common cause of septic arthritis?
A. Bacteremia B. Sexually Transmitted Disease C. Immunocompromised D. Rheumatoid Arthritis E. trauma
A
A. Bacteremia
2
Q
source of infection for septic arthritis?
A
hematogenous spread (72%)
then,
extension of infection into joint space, direct inoculation of bacteria into joint
3
Q
clinical features associated with septic arthritis?
major s/s with gonorrhea?
A
joint pain, swelling, warmth, decreased motion
tenosynovitis
***many do not have fevers
4
Q
what is the WBC?
A
> 50,000/mm^3
5
Q
tx?
A
no randomized controlled studies have evaluated antibiotic regimens for bacterial arthritis
