A4- Skin Infections & Infestations (check video)

Question 1

What is Commensal bacteria

Answer 1

• Bacteria present on skin but not
causing disease

Question 2

Examples of commensal bacteria

Answer 2

• Staphylococci
• Micrococci
• Corynebacteria
• Cutibacteria (Propionibacteria)

Question 3

Which organism is associated with direct invasion of epidermis,
hair follicle, or production of toxin

Answer 3

Staphylococcus aureus

Question 4

Which organism is similar to Staphylococcus aureus

Answer 4

Streptococcus pyogenes
• Group A Streptococcus

Question 5

is Eczema herpeticum life threatening?

Answer 5

yes

Question 6

How is chickenpox transmitted?

Answer 6

• Transmitted via respiratory droplets

Question 7

What is the incubation period in Chickenpox

Answer 7

• Incubation 14-17 days

Question 8

How contagious is chickenpox

Answer 8

Contagious from 2 days prior and 5 days from onset of rash

Question 9

Chickenpox can lead to

Answer 9

Pneumonitis, hepatitis, encephalitis

Question 10

which virus causes chickenpox

Answer 10

Varicella zoster

Question 11

What are the 3 genera of Dermatophytes

Answer 11

Microsporum, Trichophyton,
Epidermophyton

Question 12

What is Tinea

Answer 12

Tinea is a fungal infection of the skin. Tinea is also known as ringworm. This is because it can cause red patches on the skin in the shape of rings. But it’s not caused by worms. It’s caused by different types of fungi.

Question 13

Treatment for scabies

Answer 13

• Permethrin (leave on for 8-12h)
• Malathion (leave on for 24h)
• Treat on days 1 and 8

Question 14

Head lice

examples of

Pediculicides

Answer 14

• Malathion, Permethrin, Dimeticone