Strep. pyogenes Flashcards

1
Q

Streptococcus is gram negative. True or false?

A

False - gram positive

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2
Q

What are the virulence factors of Strep?

A

Bacterial capsule

Exotoxin production

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3
Q

Strep is present in oral microbiota. True or false?

A

True

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4
Q

Impetigo can be caused by strep. True or false?

A

True

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5
Q

Scarlet fever is caused by strep. True or false?

A

True

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6
Q

Strep throat is usually transmitted in winter. True or false?

A

False - spring and autumn

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7
Q

What are the signs and symptoms of strep throat?

A

Swollen tonsils

Discomfort when swallowing

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8
Q

What are three ways in which strep throat can be diagnosed?

A

Physical examination
Throat swabs of affected tissue
Blood test - antibodies

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9
Q

Often no treatment is needed for strep throat. True or false?

A

True - give OTC analgesics and if no improvement can give ABs

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10
Q

Rheumatic heart disease is a complication of GAS. True or false?

A

True

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11
Q

What are some complications of GAS?

A

Necrotising fasciitis
Strep toxic shock syndrome
Acute rheumatic fever

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12
Q

What is cellulitis?

A

A bacterial infection of the skin

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13
Q

IV drug use can cause cellulitis. True or false?

A

True

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14
Q

Patients with chicken pox are prone to cellulitis. True or false?

A

True

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15
Q

Obese patients are not at risk of cellulitis. True or false?

A

False

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16
Q

GAS can be carried in the vagina and anus. True or false?

A

True

17
Q

What are the signs and symptoms of cellulitis?

A

Skin becomes red, hot, swollen and tender
Commonly affects the legs
Blisters

18
Q

Eczema is a form of cellulitis. True or false?

A

False

19
Q

Lymphoedema is cellulitis. True or false?

A

False

20
Q

Cellulitis patients need to be referred to hospital. Why?

A

Because they need I.V ABs

21
Q

What are some danger eliminations of cellulitis that would indicate referral to hospital is needed?

A
Spreading of redness in an area
High temp of 38+
Change in mental state - e.g. confusion
Nausea/vomiting 
Rapid heart beat/breathing
22
Q

What are the three ways in which cellulitis is diagnosed?

A

Blood test
Skin swab
Physical examination

23
Q

How is a mild infection with cellulitis treated?

A

7-14 day oral AB at home

e.g. phenoxymethylpenicillin

24
Q

How is an advanced infection of cellulitis treated?

A

Hospital admission for IV AB - benzylpenicillin

25
Q

What are some complications of cellulitis?

A

Septicaemia
Necrotising fasciitis
Facial cellulitis