Bone and joint infections

Question 1

General area of acute osteomyelitis in children

Answer 1

Metaphysis

Question 2

Common causes of osteomyelitis in pts with implants

Answer 2

S epidermidis
S aureus

Question 3

Pathogen causing osteomyelitis associated with malignant otitis externa

Answer 3

Pseudomonas

Question 4

Unilateral, acutely swollen, erythematous, painful joint that is most commonly the knee

Answer 4

Septic arthritis

Question 5

Most common causes of septic arthritis in neonates

Answer 5

Group B strep
E coli

Question 6

Most common cause of septic arthritis in sexually active pts

Answer 6

Neisseria gonorrhoeae

Question 7

Causes of septic arthritis in pts taking TNF inhibitors

Answer 7

Listeria monocytogenes
Salmonella

Question 8

Virulence factor of N gonorrhea

Answer 8

PorB protein that interferes with degranulation of neutrophils

Question 9

Clinical symptoms of disseminated N gonorrhea

Answer 9

Tenosynovitis
Dermatitis
Migratory polyarthritis
Purulent arthritis

Question 10

Treatment for disseminated N gonorrhea

Answer 10

IV ceftriaxone followed by oral cefixime or a fluoroquinolone

Question 11

Reiter’s syndrome

Answer 11

Sexually acquired reactive arthritis caused by chlamydia trachomatis

Question 12

Classic triad of reactive arthritis

Answer 12

Uveitis
Conjunctivitis
Arthritis with skin lesions