Biology /Pharm Y2S2 - Staphylococcus Aureus
What is staphylococcus aureus?
A gram positive, spherical and non-motile organism. It is ~1mcm in diameter and golden yellow
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Key Terms
Term
Definition
What is staphylococcus aureus?
A gram positive, spherical and non-motile organism. It is ~1mcm in diameter and golden yellow
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What does staph aureus colonise?
Skin nasal passages GIT
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Which patient groups are affected by hospital acquired MRSA?
- >60 year olds Those admitted / after procedures Immunocompromised Invasive medical procedures Colonised asymptomatic patients
Which patient group does community acquired MRSA affect?
Young and healthy patients
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Give examples of skin conditions caused by MRSA
Mucosal membrane Pimples Boils Leg ulcers Pressure sores Cellulitis Wound infection Slapped cheek syndrome Necrotising fasciitis
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Give examples of invasive conditions caused by MRSA
Surgical wound UTIs Septicaemia Pneumonia Endocarditis Osteomyelitis Septic arthritis Meningitis
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| Term | Definition |
|---|---|
What is staphylococcus aureus? | A gram positive, spherical and non-motile organism. It is ~1mcm in diameter and golden yellow |
What does staph aureus colonise? | Skin nasal passages GIT |
Which patient groups are affected by hospital acquired MRSA? | - >60 year olds Those admitted / after procedures Immunocompromised Invasive medical procedures Colonised asymptomatic patients |
Which patient group does community acquired MRSA affect? | Young and healthy patients |
Give examples of skin conditions caused by MRSA | Mucosal membrane Pimples Boils Leg ulcers Pressure sores Cellulitis Wound infection Slapped cheek syndrome Necrotising fasciitis |
Give examples of invasive conditions caused by MRSA | Surgical wound UTIs Septicaemia Pneumonia Endocarditis Osteomyelitis Septic arthritis Meningitis |
What are the signs and symptoms of conjunctivitis? | Grittiness Discharge Pink eye Itching |
What is used to treat conjunctivitis? | Chloramphenicol drops 2 hrly / QDS or ointment QDS Fusidic acid gel BD |
How is a primary impetigo infection caused? | Through an infecting cut / bite or graze |
How is a secondary impetigo infection caused? | When there is an underlying skin condition |
What are the signs and symptoms of a bullous impetigo infection? | Affects trunk, arms, legs with large blisters |
What are the signs and symptoms of a non-bullous impetigo infection? | Itchy sores with yellow brown crusts around mouth and nose |
What are the complications of impetigo? | Lymphagitis Cellulitis Guttate psoriasis Scarlet fever Septicaemia |
What can be used to treat impetigo? | Fusidic acid cream TDS/QDS Mupirocin ointment TDS Oral flucloxacillin QDS Oral erythromycin QDS |
What are complications of device related infections? | Endocarditis Septicaemia |
What is the treatment for device related infections? | Remove device and potentially infected tissue IV antibiotics: Flucloxacillin Clarithryomycin Vancomycin Rifamicin Clindamycin Linezolid |