Bacterial, fungal and parasitic infections

Question 1

Example of b-haemolytic streptococci

Answer 1

strep pyogenes

Question 2

Treatment of strep pyogenes infections

Answer 2

penicillin but will be treated by flucloxacillin

Question 3

presentation of scabies

Answer 3

intensely itchy rash affecting finger webs, wrists and groin

Question 4

treatment of candida

Answer 4

clotrimazole cream, oral fluconazole

Question 5

y-haemolysis is a ____colour

Answer 5

no change in colour

Question 6

Early presentation of lyme disease

Answer 6

erythema migrans

Question 7

Examples of strep pyogenes infections (4)

Answer 7

impetigo, cellulitis, infected eczema, necrotising fasciitis

Question 8

how does ringworm infect the skin?

Answer 8

enters abraded and soggy skin, hyphae spread in the stratum corneum (keratinocyte layer)

Question 9

Treatment of more extensive areas of ringworm/ on the scalp

Answer 9

terbinafine or itraconazole orally

Question 10

Examples of a-haemolytic streptococci (2)

Answer 10

strep. pneumoniae; strep. viridans

Question 11

Condition showing this type of rash

Answer 11

ringworm

Question 12

signs of infected leg ulcer

Answer 12

weepy, sloughy, smelly

Question 13

Skin condition and causative organisms

Answer 13

impetigo - staph aureus/strep pyogene

Question 14

a-haemolysis is ____ haemolysis

Answer 14

partial

Question 15

where do cadida infections like to be ?

Answer 15

in warm, moist areas particularly skin folds

Question 16

tinea manuum

Answer 16

hand ring worm

Question 17

Treatment of lyme disease

Answer 17

amoxicillin or doxycycline

Question 18

Example of y-haemolytic strep.

Answer 18

enterococcus - gut commensals

Question 19

a-haemolysis is ____ haemolysis

Answer 19

partial

Question 20

a-haemolysis is a ____colour

Answer 20

green

Question 21

Vector for lyme disease

Answer 21

ticks

Question 22

b-haemolysis is a ____colour

Answer 22

clear/gold

Question 23

Identify the type of haemolysis and give an example organism

Answer 23

non-haemolytic strep - enterococcus

Question 24

Identify the organism

Answer 24

Staph aureus

Question 25

gram positive cocci, chains

Answer 25

streptococci

Question 26

2 types of necrotising fasciitis

Answer 26

1. mixed anaerobes/coliforms post-abdominal surgery; 2. Group A strep pyogenes

Question 27

b-haemolytic strep can be commensals - TRUE/FALSE

Answer 27

FALSE - b-haemolytic strep are always pathogenic

Question 28

This rash may be seen with which disease

Answer 28

Lyme's disease - erythema migrans

Question 29

Treatment of small areas of ringworm

Answer 29

clotrimazole cream/topical nail paint

Question 30

incubation period for scabies

Answer 30

6 weeks

Question 31

tinea cruris

Answer 31

groin ring worm

Question 32

sarcoptes scabei

Answer 32

scabies

Question 33

tinea stands for...

Answer 33

ring worm

Question 34

ring worm only infects keratinised tissue - TRUE/FALSE

Answer 34

TRUE - hair, nails, skin

Question 35

Identify as coagulase positive or negative

Answer 35

coagulase positive - staph aureus

Question 36

treatment of scabies

Answer 36

malathion lotion applied over whole body overnight, or benzyl benzoate (avoid in children)

Question 37

Strep viridans is a commensal of (3)

Answer 37

mouth, throat, vagina

Question 38

tinea pedis

Answer 38

foot ringworm

Question 39

tinea corporis

Answer 39

body ring worm

Question 40

Gram positive, coagulase positive, clusters

Answer 40

Staph aureus

Question 41

pathogenesis of ringworm infection (5)

Answer 41

1. enters abraded and soggy skin, hyphae spread in the stratum corneum 2. increased epidermal turnover causes scaling 3. inflammatory response in dermis 4. hair follicles and shaft invaded 5. lesions grow outward and heal in centre causing ring appearance

Question 42

a-haemolysis is ___ haemolysis

Answer 42

no

Question 43

Identify the type of haemolysis and give an example organism

Answer 43

b-haemolysis - Strep. pyogenes

Question 44

tinea capitis

Answer 44

scalp ring worm

Question 45

Diagnosis of ringworm

Answer 45

appearance and skin/nail scrapings

Question 46

common areas for candida infections (4)

Answer 46

under breasts, groin, abdominal skin folds, nappy area in babies

Question 47

late presentation of lyme disease (not essential)

Answer 47

heart block, nerve palsies, arthritis

Question 48

Identify the type of haemolysis and give an example organism

Answer 48

alpha haemolysis - strep pneumoniae, strep viridans

Question 49

treatment for lice

Answer 49

malathion lotion

Question 50

tinea unguium

Answer 50

nail ring worm

Question 51

Common infection caused by y-haemolytic strep.

Answer 51

UTIs

Question 52

Treatment of staph. aureus skin infections

Answer 52

flucloxacillin

Question 53

Describe the gram stain and likely organism

Answer 53

Gram pos cocci in chains - streptococci species

Question 54

Common staph aureus infections

Answer 54

cellulitis, impetigo, infected eczema, boils, wound infections

Question 55

pediculus capitis/corporis

Answer 55

lice