The microbiology man (incomplete) Flashcards

1
Q

Why should you check if a patient has travelled within the past 12 weeks?

A

May have different infection/resistancies

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2
Q

Name some gram -ve coliforms

A

E.coli
Klebsiella
Enterobacter
Proteus

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3
Q

What antibiotics cover gram -ve coliforms?

A

Gentamicin

Aztreonam (covers most)

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4
Q

What are ESBLs resistant to?

A

Most penicillins

Includes co-amoxiclav, piptaz and aztreonam

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5
Q

What antibiotics cover ESBLs?

A

Temocillin

Pivmecillinam and meropenem

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6
Q

Temocillin and ertapenem do not cover what infection?

A

Pseudomonas

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7
Q

Why is metronidazole not needed when using piptax, co-amoxiclav and meropenem?

A

They cover anaerobes

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8
Q

Temocillin and aztreonam have no anaerobic or gram positive cover.

True or false?

A

True

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9
Q

Anaerobes are generally sensitive to which antibiotic?

A

Metronidazole

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10
Q

Gram positives are all resistant to vancomycin.

True or false

A

False

All sensitive to vanc

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11
Q

MRSA is resistant to which group of antibiotics?

A

Beta-lactams

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12
Q

What organisms cause meningitis?

A

Pneumococcus

Meningococcus

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13
Q

If a patient is >60, what organism might cause their meningitis?

A

Listeria

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14
Q

What organism causes encephalitis?

A

Herpes simplex

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15
Q

What tests should you send to microbiology if meningitis is suspected?

A

Blood cultures
Throat swab
EDTA

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16
Q

Why is ceftriaxone used to treat meningitis?

A

High CSF levels need to be maintained
Ease of dosing (twice a day)
Provides better cover for organisms with borderline sensitivity to penicillin

17
Q

What is used to treat herpes simplex encephalitis?

A

IV acyclovir

18
Q

What antibiotics is listeria resistant to?

A

Cephalosporins

19
Q

What organisms cause epiglottitis?

A

Haemophilus influenzae

Streptococci

20
Q

What organisms cause tonsilitis?

A

Group A strep

21
Q

What organisms cause sinusitis?

A

Pneumococcus

22
Q

What organisms cause acute otitis media?

A

Pneumococcus

Haemophilus influenzae

23
Q

What antibiotic group are all beta-haemolytic strep sensitive to?

A

Penicillin

24
Q

Why is ceftriaxone used to treat epiglottitis?

A

High tissue levels
Ease of dosing
Better empiric cover for amoxicillin resistant organisms

25
Q

Most haemophilus influenzae infections are sensitive to what?

A

Doxycycline

26
Q

What organisms cause mild/moderate CAP?

A

Pneumococcus

H. influenzae

27
Q

What organisms cause severe CAP?

A

Pneumococcus
H. influenzae

Atypicals (legionella, mycoplasma, chlamydia pneumonaie, coxiella, staph aureus)