MRSA skin soft-tissue infection

Question 1

Characteristics of MRSA

Answer 1

• Stayphylococcus aureus (gram-positive) Clusters
• Resistant to multiple antibiotics
• 1/3 population on skin
• Withstands 7.5-10% salt, extreme pH, and high temps

Question 2

Sings and Symptoms of MRSA

Answer 2

• Raised, red, tender, localized lesions, pus, feels hot
• Breaks in skin localized around hair follicle
• Fever may be present

Question 3

Transmission/Epidemiology

Answer 3

• Gym equipment airplane tables, electronics, razors
• Keep active MRSA covered
• Direct/indirect contact

Question 4

Pathogenesis/Virulence Factors MRSA

Answer 4

• Coagulase

- Produce hyaluronidase, staphylokinase, DNase, and lipase

Question 5

Culture and Diagnosis MRSA

Answer 5

• PCR
• Blood agar MSA
• Catalase to find S. aureus
• Coagulase test

Question 6

Prevention MRSA

Answer 6

-Good hygiene

Question 7

Treatment MRSA

Answer 7

• Drainage of pus

- Antibiotics: Clindamycin + TMP/SMZ, Doxycycline