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MBBS3 > Infections > Flashcards

Infections Flashcards

1
Q

What are the features of gram negative organisms?

A 
Prefers moist environment 
Colonises abnormal skin and enteric colonisation 
Endotoxins 
Variable O antigen 
Amplification potential 
Abx resistance
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2
Q

What are the features of gram positives?

A 
Resist drying 
Colonise normal skin 
Produce toxins, spores and capsules 
Produce slime on plastics 
Abx resistance
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3
Q

In sepsis that is community acquired, unknown source or gut what is a typical abx therapy?

A

Co amoxiclav and gentamicin
Add vancomycin if ?MRSA

OR
Cefuroxime/ ciprofloxacin and metronidazole and gentamicin

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4
Q

In sepsis that is community acquired, with known skin or soft tissue infection, what is a typical abx therapy?

A

Flucloxacillin + penicillin

-/+ gentamycin (consider adding cindamycin if group A strep or staph aureus TOXIC SHOCK

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5
Q

In sepsis that is community acquired, with known pneumonia, what is a typical abx therapy?

A

Co amoxiclav and doxycycline
Or
Cefuroxime and erythromycin

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6
Q

In sepsis that is community acquired, and known meningococcal disease, what is a typical abx therapy?

A

Cefraxone -BD

Can also use penicillin but SIx times a day so not as easy

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7
Q

In sepsis that is hospital acquired, what is a typical abx therapy?

A

Co amoxiclav and
Gentamycin and piperacillin-taxobactam (tazocin)

NB only if infection is after 48hts of coming to hospital- otherwise treat like community acquired

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8
Q

What 3 organisms can cause renal abscess commonly?

A

Ecoli
Klebsiella
TB

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9
Q

Which bugs have urinary antigens?

A

Legionella

Streptococcus pneumoniae

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10
Q

Which bug agglutinates RBCs on blood films?

A

Mycoplasma pneumonia

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11
Q

What abx do you give for bacterial meningitis cause unknown?

A

Cefotaxime

Add ampicillin if over 55 (covers listeria)

Give dexamethasone if meningitic

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12
Q

What is the treatment of viral encephalitis?

A

Aciclovir
Dexamethasone (treats raised ICP)
Anticonvulsants

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13
Q

What causes subacute sclerosing panencephalitis?

A

Measles

Incidious onset usually after primary infection

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14
Q

What is a complication of frontal sinusitis?

A

Subdural empyema

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15
Q

If a giloma is methylated, what treatment is it more responsive to?

A

Temozplamide

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16
Q

What is the treatment for migraine prophylacticly?

A

Topiramate or propanolol

17
Q

What is the treatment for acute migraine?

A

Triptan and NSAID

18
Q

C diff

A

Amoxillin
Cephlasprins
Ciprofloxacin

MBBS3 (6 decks)

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