Infectious Arthritis and Osteomyelitis

Question 1

pain, redness, low grade fever, tenderness joints, reduced mobility

all ages EXCEPT b/w 15-40

Answer 1

S. aureus

Question 2

pain, redness, low grade fever, tenderness joints, reduced mobility

15-40 y/o
sexually active promiscuous

Answer 2

Neisseria gonorrhea

Question 3

pain, redness, low grade fever, tenderness joints, reduced mobility

prosthetic joints

Answer 3

S. epidermidis

Question 4

pain, redness, low grade fever, tenderness joints, reduced mobility

following GIT infection few weeks ago

Answer 4

Reiter’s syndrome (Reactive arthritis)

Question 5

fever, bone pain with swelling, redness and associated cellulitis

adults, children and infants w/o major trauma or special conditions

neonates < 1 mo old

Answer 5

Staphylococcus

Question 6

fever, bone pain with swelling, redness and associated cellulitis

sickle cell anemia

Answer 6

Salmonella choleraesuis or enterica

Question 7

fever, bone pain with swelling, redness and associated cellulitis

hx of trauma

Answer 7

Pseudomonas