SirSamuel

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Clinical Post New Entry

VITAMIN A DEFICIENCY

Posted by sammy on February 5, 2013 at 4:45 PM

Lack of vitamin A which is required for proper

functioning of the retina & of epithelial cells. More

common in children

 

Causes

 

z

Malnutrition

z

Severe childhood illness, eg. measles, whooping

cough

 

Clinical features

 

z

Night blindness

z

Conjunctival dryness - see Xerophthalmia,

z

Corneal ulceration (keratomalacia)

z

Dry, rough and thickened skin (‘toad skin’)

 

 

Differential diagnosis

 

z

Other causes of blindness, eg. glaucoma,

trachoma, onchocerciasis, gonococcal

ophthalmia, accidents, cataract

 

Investigations

 

¾

Diagnosis is based on clinical presentation

¾

Serum vitamin A

 

Management

HC2

 

f

vitamin A: give 3 doses (days 1, 2 and 14)

< 6 months: 50,000 IU

6-12 months: 100,000 IU

over 12 months: 200,000 IU

 

UCG 2010

191

 

 

 

 8. Nutrition

Note

 

.

Give prophylactic vitamin A to children with

measles, malnutrition, chronic respiratory

infections, persistent diarrhoea and to lactating

mothers

Categories: None

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