viral and parasitic skin infections

Question 1

which virus causes chicken pox?

Answer 1

Varicella Zoster Virus (VZV)

Question 2

which virus causes shingles?

Answer 2

Herpes Zoster Virus (HZV)

Question 3

both shingles and chickenpox are contagious?

Answer 3

false

only chickenpox is contageous

Question 4

some complications of chickenpox?

Answer 4

bacterial pneumonitis
scarring
hemorrhagic rash
encephalitis

Question 5

nerve pain persisting >4 weeks after shingles has been resolved?

Answer 5

post herpetic neuralgia

Question 6

complication of shingles resulting in facial nerve (CNVII) palsy?

Answer 6

Ramsay Hunt Syndrome (herpes zoster oticus)

Question 7

symptoms of ramsay hint syndrome?

Answer 7

erythematous vesicular rash on the ear (zoster oticus) or in the mouth
facial paralysis
tinnitus, deafness, vertigo

Question 8

main cause of oral lesions Primary herpetic gingivostomatitis (oral herpes)?

Answer 8

HSV type 1

Question 9

spread of HSV from mouth to finger

Answer 9

herpetic whitlow

Question 10

spread of HSV to eczema

Answer 10

eczema herpeticum (deadly)

Question 11

can HSV cause erythema multiform (target lesions)?

Answer 11

yes

Question 12

treatment for HZV and HSV

Answer 12

aciclovir

Question 13

MOA of aciclovir

Answer 13

guanosine analogue, selective takn into viral DNA and inhibits replication

DOES NOT ELIMINATE THE VIRUS

Question 14

Small, multiple umbilicated, translucent/pearlescent papules that look fluid-filled but are solid

Answer 14

Molluscum contagiosum

Question 15

cause of viral warts?

Answer 15

HPV

Question 16

HPV viral wart on feet?

Answer 16

verrucae

Question 17

HPV types __ and __ cause genital warts

Answer 17

6 and 11

Question 18

HPV types __ and __ cause cervical cancer

Answer 18

16 and 18

Question 19

blistering rash at the back of the mouth

Answer 19

herpangina

Question 20

causes of herpangina?

Answer 20

enteroviruses (coxsackie virus/echovirus)

Question 21

virus that causes hand foot and mouth disease?

Answer 21

coxsackie virus (enterovirus)

Question 22

Intense erythema on cheeks (and proximals limbs) of child

Answer 22

‘slapped cheek disease’

caused by erythema infectiosum/ Parvovirus B19)

Question 23

test for Parvovirus B19?

Answer 23

Parvovirus B19 IgM test

Question 24

complication of Parvovirus ?

Answer 24

spontaneous abortion, chronic anaemia, aplastic crises (sudden dec, in Hb)

Question 25

firm fleshy nodule on farmers hands

Answer 25

Orf | sheep disease

Question 26

primary syphilis infection

Answer 26

chancre - painless ulcer

Question 27

secondary syphilis infection

Answer 27

red rash all over body especially feet soles | snail track ulcers on mucous membranes

Question 28

what organism transmits syphilis sexually?

Answer 28

treponema pallidum

Question 29

treatment for syphilis

Answer 29

penicillin injections

Question 30

Erythematous Bullseye lesion (Erythema migrans)

Answer 30

lymes disease

Question 31

what bacteria causes Lyme disease?

Answer 31

Borrelia Burgdorferi (spread by ticks)

Question 32

presentation of lyme disease

Answer 32

early - erythema migrans | late: arthritis, heart block, nerve palsy

Question 33

treatment for lyme disease

Answer 33

penicillin/amoxicillin

Question 34

name two parasitic infections

Answer 34

lice and scabies

Question 35

treatment for scabies

Answer 35

malathion lotion or benzyl benzoate

Question 36

treatment for lice

Answer 36

malathion lotion

Question 37

which conditions are people isolated in hospital with?

Answer 37

Group A strep MRSA scabies