Nutrition and the Skin Flashcards Preview

Dermatology > Nutrition and the Skin > Flashcards

Flashcards in Nutrition and the Skin Deck (17)
Loading flashcards...
1
Q

Deficiency in which vitamin or mineral will cause:

  1. Anaemia
  2. Angular stomatitis
  3. Glossitis
  4. Hair depigmentation
  5. Skin and mucous membrane pigmentation
A

Folate

2
Q

What is acrodermatitis enteropathica?

A

Inherited condition

Lack of zinc absorption

Causes diarrhoea, alopecia, dry brittle hair, facial and acral dermatitis

3
Q

If a patient presents with a convincing history for a peanut allergy, what is the correct thing to do to confirm this?

A

Skin prick test

(serum testing for specific IgE antibodies may also be done)

Oral food challenge is NOT done

4
Q

Skin tags may be associated with what?

A

Insulin resistance

5
Q

Where is acanthosis nigricans often seen?

A

Around the axillae

6
Q

If a patient seems to have a non-IgE mediated allergy, what is the nect step to confirm this?

A

Trial elimination of suspected allergen for 2-6 weeks

Reintroduce to determine if there is a return of symptoms

7
Q

What is an allergy?

A

An immune reaction usually involving IgE antibodies, but also potentially T cells

8
Q

Deficiency in which vitamin/mineral causes:

  1. Dermatitis
  2. Delirium
  3. Diarrhoea
  4. Death
A

Vitamin B3

9
Q

Which foods may vitamin B3 be acquired?

A
  1. Meat
  2. Fish
  3. Nuts
  4. Coffee
10
Q

Why is the barrier function of the skin weakened in obese patients?

A

Increased trans-epidermal water loss causing dry skin

11
Q

Which vitamin/mineral can only be acquired from foods of animal origin (milk, meat, fish, eggs)?

A

Vitamin B12

12
Q

Which vitamin is vital for epithelial proliferation, keratinisation and development?

A

Vitamin A

13
Q

Which vitamin/mineral is an essential cofactor in collagen formation?

A

Vitamin C

14
Q

What may a deficiency in vitamin C lead to?

A
  1. Hyperkeratosis around hair follicles
  2. Bent hairs
  3. Inflamed gums
  4. Poor wound healing
  5. Scurvy (weakness, anaemia, gingivitis, skin haemorrhages)
  6. Muscle and bone pain
15
Q

Which two vitamins are essential cofactors in numerous metabolic reactions?

A

Vitamin B2 and B3

16
Q

What is vitamin B6?

A

Co-enzyme

17
Q

How does obesity impact the collagen in the skin?

A

Reduced mechanical strength of skin

Failure of collagen deposition to match surface area