Microbiology and the Skin 2 Flashcards Preview

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Flashcards in Microbiology and the Skin 2 Deck (39)
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1

Why is paravirus B19 associated with spontaneous abortion?

Causes a low red cell count

2

How will children infected with Paravirus B19 present?

Often looking well

With red cheeks (hence, slapped cheek disease)

3

Which condition does paravirus B19 cause?

Erythema infectiosum

(slapped cheek disease)

4

What remains present as Varicella zoster virus remains dormant?

Viral DNA and transcribed RNA

(in dorsal root ganglia)

5

How is the presentation of shingles different to chicken pox?

Shingles has a dermatomal presentation

6

If HSV1 spreads to atopic eczema which condition can it cause?

Eczema herpeticum

7

How is HSV treated?

Aciclovir

8

Which microorganism is responsible for causing chicken pox and shingles?

Varicella zoster virus

9

What is herpangina and which microorganisms can cause it?

A painful mouth infection causing blisters

Coxsackie A and B viruses

Echoviruses

10

Hand, foot and mouth disease is caused by which virus?

Enteroviruses

11

What is a very severe side effect of hand, foot and mouth disease?

Brain stem encephalitis

12

List treatment options for common warts

  1. Cryotherapy
  2. Retinoid cream
  3. Surgery
  4. Topical salicylic acid

13

What causes Lyme disease?

Bacterial infection

(through parasitic vector - ticks)

14

What are the serious late presentations of Lyme disease?

  1. Nerve palsies
  2. Arthritis
  3. Heart block

15

What is the first line therapy for syphilis?

Penicillin

16

Which strain of HSV will cause mouth ulcers most commonly?

HSV1

17

What is the pain associated with shingles that lasts after the blistering and rash disappear?

Postherpetic neuralgia

18

How does aciclovir function?

Stops viral RNA production

(does not destroy virus)

19

What is the treatment for shingles when it presents within 48 hours of symptom onset?

  1. Aciclovir 800mg 5x daily for 7-10 days
  2. Tramadol 50mg 4x daily

20

Which type of pain is associated with shingles?

Neuropathic

(burning and sharp)

21

Which condition often affects farmers or people in contact with animals such as sheep/goats and causes a large warty lesion on the skin?

Orf

22

Which things is erythema multiforne associated with?

  1. Drug reactions
  2. HSV
  3. Mycoplasma pneumoniae

23

Which microorganism causes common warts?

Human papilloma virus (HPV)

24

Which condition presents which a characteristic bullseye rash?

Lyme disease

25

Which microorganism is responsible for the Zika virus?

Aedes aegypti

26

What does the Zika virus cause in adults?

  1. Mild fever
  2. Macropapular rash
  3. Headaches
  4. Arthralgia
  5. Myalgia
  6. Non-purulent conjunctivitis

27

What does the Zika virus cause in babies born to infected mothers?

  1. Microcephaly
  2. Guillian-Barre syndrome

28

What are the main complications associated with chicken pox?

  1. Encephalitis
  2. Pneumonitis
  3. Scarring
  4. Secondary bacterial infection

29

How is the dermatological presentation of secondary syphilis infection different from chicken pox?

Palms and soles are affected

30

How are the mucosal membranes impacted in secondary syphilis?

Snail-trail ulcers