Staphylococcus aureus bacteraemia Flashcards

1
Q

What type of bacteria are Staphylococcus aureus bacteria?

A

Gram positive (+ve)

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2
Q

Is staph. aureus found in the normal gut flora?

A

Yes

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3
Q

In which type of patients are at higher risk of s. aureus colonisation?

A

Diabetics
HIV infection
Dialysis patients

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4
Q

Where is the most common site of S. aureus infection?

A

Anterior nares

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5
Q

What is the most common cause of skin infection (cellulitis)?

A

S. aureus

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6
Q

How are S. Aureus infections classified?

A

HAIs or community acquired

Primary or secondary

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7
Q

Where are frequent sites of distant metastases in S. aureus infection?

A

Bones & joints (prosthetic)
Epidural space & IV discs
Prosthetic heart valves

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8
Q

What investigations can you do to test for S aureus?

A

Multiple blood cultures before and 48-72 hours after commencing therapy

CXR
Biopsy
TOE

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9
Q

What is the basis of treatment for invasive staphylococcal infections?

A

ABI therapy
Source identification & clearance
Surgical intervention

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10
Q

What is the 1st line therapy for MSSA?

A

(IV) Flucloxacillin (14 days)

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11
Q

What is the 1st line therapy for MRSA?

A

Vancomycin (IV)

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