Methicillin-resistant Staphylococcus Aureus

Question 1

What type of organism is MRSA

Answer 1

Gram-positive genetically distinct strain of Staphylococcus Aureus

Question 2

What are the subtypes of MRSA

Answer 2

Community Associated

Healthcare Associated (Nosocomial)

Question 3

What are some predisposing factors for contracting MRSA

Answer 3

Hospitals, nursing homes, close living quarters, military, athletes, weakened immune systems

Question 4

What drug resistance has MRSA developed

Answer 4

beta-lactum antibiotics

Question 5

What are the most frequently reported clinical manifestations of MRSA

Answer 5

Furuncles, carbuncles, and abscesses

Areas of fluctuance and purulent drainage

Question 6

What is a common complaint of patient’s with suspected MRSA that should raise suspicion of S. aureus

Answer 6

“Spider Bite”

Question 7

Are the initial treatments for MSSA / MRSA SSTI

Answer 7

The initial treatment is the same

Antibiotic therapy

Question 8

What is the mainstay of treatment for a fluctuant lesion secondary to MRSA

Answer 8

Oral antibiotics

Incision and drainage
- Proper wound packing and daily dressing change

Question 9

Antibiotics used in the treatment of MRSA

Answer 9

Bactrim
 - PO bid x 5-10 days
Clindamycin
- PO bid x 5-10 days
Doxycycline
- PO bid x 10 days

Question 10

MRSA outbreaks among crew members need to be documented in what ?

Answer 10

weekly Disease Non-battle injury