π Vitamin B3 deficiency (Niacin deficiency / Pellagra)
π The client presents with chronic homelessness and poor nutrition, which increases risk for vitamin deficiencies.
π He has dermatitis on exposed areas (arms and face) which is characteristic of pellagra dermatitis.
π Pellagra is caused by niacin (Vitamin B3) deficiency.
π Classic symptoms of niacin deficiency are known as the β3 Dβsβ:
π΄ Dermatitis (dark, scaly skin lesions)
π΄ Diarrhea (client has 4β6 loose stools/day)
π΄ Fatigue β can progress to dementia (neuro symptoms later)
π His dark, scaly rash on sun-exposed areas strongly supports niacin deficiency.
π Chronic diarrhea worsens nutrient loss and malabsorption, increasing deficiency risk.
π Homelessness increases risk due to poor dietary intake and limited access to balanced meals.
π Therefore, Vitamin B3 deficiency is the most likely condition.
π©Ί ACTIONS TO TAKE
π§΄ 1. Clean the areas of the skin where the dermatitis is located
π Dermatitis in niacin deficiency is inflamed, fragile skin lesions.
π Cleaning helps prevent secondary bacterial infection.
π It also promotes comfort and skin integrity.
π Gentle skin care is important because affected skin is photosensitive and easily damaged.
π This is a basic supportive nursing intervention.
π 2. Provide a niacin supplement
π Niacin supplementation directly treats the root cause of the deficiency.
π It helps reverse the 3 D symptoms (dermatitis, diarrhea, neurological issues).
π Improvement can occur quickly after supplementation.
π It is the primary treatment for pellagra.
π This is the most important therapeutic intervention.
π PARAMETERS TO MONITOR
βοΈ 1. Weight
π Chronic diarrhea can lead to fluid and nutrient loss β weight loss.
π Monitoring weight helps assess nutritional recovery or deterioration.
π Weight changes reflect overall treatment response.
π It is a key indicator of nutritional status improvement.
π§ 2. Fluid balance
π The client has active diarrhea (4β6 stools/day).
π This increases risk of dehydration and electrolyte imbalance.
π Monitoring intake and output helps detect fluid loss severity.
π It is essential for preventing hypovolemia complications.
β WHY OTHER OPTIONS ARE NOT CORRECT
π‘ Folate deficiency
π Causes megaloblastic anemia, not dermatitis + diarrhea triad.
π Does not explain skin lesions or chronic diarrhea pattern.
π‘ Vitamin C deficiency
π Causes bleeding gums, bruising, poor wound healing (scurvy).
π No scaly dermatitis or classic diarrhea triad.
π‘ Iron deficiency
π Causes anemia, fatigue, pallor.
π Does not cause dermatitis or diarrhea symptoms.
π‘ Draw blood for electrolyte panel
π Useful in diarrhea but does NOT treat underlying cause.
π Not specific to diagnosing niacin deficiency.
π‘ Recommend leafy greens
π General nutrition advice but not immediate treatment.
π Niacin deficiency requires direct supplementation first.
π‘ Hemoglobin level
π Helps assess anemia but does not explain skin + GI + fatigue triad.
π Not priority for this presentation.
π‘ Level of consciousness
π May be affected in severe cases, but this client shows early deficiency stage.
π Not the most sensitive monitoring parameter here.
π‘ Excessive bleeding
π Related to vitamin K deficiency, not niacin.
π Not consistent with clinical picture.
π‘ Tooth decay or loss
π Seen in vitamin C deficiency (scurvy).
π Not relevant to niacin deficiency.