Ortho Infectious Disease Quiz
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Which of the following is NOT a common pathogen for septic arthritis?
A. Staphylococcus aureus
B. Streptococcus pyogenes
C. Neisseria gonorrhoeae
D. Escherichia coli
Which imaging technique is helpful to assess the extent of infection in septic arthritis?
A. CT scan with contrast
B. X-ray
C. MRI
D. Ultrasound
Which of the following is NOT a common presentation of osteomyelitis?
A. Pain, low-grade fever
B. Localized erythema, edema, warmth
C. Sepsis
D. High blood pressure
What is the most common pathogen associated with osteomyelitis?
A. Staphylococcus aureus
B. Escherichia coli
C. Pseudomonas aeruginosa
D. Salmonella
Which of the following is a risk factor for septic arthritis?
A. Diabetes
B. Hypertension
C. Asthma
D. Hyperthyroidism
What is a common presentation of flexor tenosynovitis?
A. Tendon rupture
B. Tendon thickening
C. Tendon tenderness along the course of the tendon sheath
D. Tendon calcification
Which of the following is a common pathogen for gonococcal arthritis?
A. Neisseria gonorrhoeae
B. Staphylococcus aureus
C. Streptococcus pyogenes
D. Pseudomonas aeruginosa
Which pathogen is commonly associated with cat bites leading to septic arthritis?
A. Pasteurella multocida
B. Staphylococcus aureus
C. Neisseria gonorrhoeae
D. Streptococcus pyogenes
Which pathogen is commonly associated with puncture wounds and contiguous infection in infectious tenosynovitis?
A. Neisseria gonorrhoeae
B. Staphylococcus aureus
C. Pasteurella multocida
D. Bartonella henselae
What is the typical duration for direct antibiotic therapy (ABX) after cultures and sensitivities return for treating osteomyelitis?
A. 1-3 days
B. 4-6 days
C. 7-14 days
D. 15-21 days
Which diagnostic imaging method is considered the most sensitive for identifying the extent of soft tissue involvement in osteomyelitis?
A. Plain Films
B. CT with contrast
C. MRI with contrast
D. Ultrasound
What is the typical WBC count range in synovial fluid for inflammatory arthritis?
A. 2,000-100,000
B. <200 C. >100,000
D. 200-2,000
What is the best lab value to judge treatment response in septic arthritis?
A. CRP (C-reactive protein)
B. WBC (White Blood Cell) count
C. ESR (Erythrocyte Sedimentation Rate)
D. Glucose level
Which of the following is NOT a common site for septic bursitis?
A. Prepatellar bursa
B. Olecranon bursa
C. Subacromial bursa
D. Trochanteric bursa
What is the most common joint affected by hematogenous spread in septic arthritis?
A. Knee
B. Elbow
C. Wrist
D. Ankle
What is the primary method for evaluating the extent of bone destruction in osteomyelitis?
A. Plain Films
B. CT with contrast
C. MRI with contrast
D. Ultrasound
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