Texas Class A Barber Written ExamSanitation, Disinfection, and SafetyMedium
A client presents with a persistent, itchy rash characterized by small, fluid-filled blisters on their scalp and neck. The barber suspects a contagious parasitic infestation. Which of the following conditions is most likely based on these symptoms?
- AImpetigo
- BPediculosis capitis
- CTinea capitis
- DPsoriasis
Show answer & explanationAnswer & explanation
Correct answer: B. Pediculosis capitis
Pediculosis capitis, or head lice, is a parasitic infestation that commonly causes intense itching and small, fluid-filled blisters (papules) from bites, particularly on the scalp and neck. This is highly contagious and requires immediate referral.
Why the other options are wrong
- A. Impetigo is a bacterial skin infection causing honey-crusted sores, not typically fluid-filled blisters and intense itching from parasites.
- C. Tinea capitis is a fungal infection (ringworm of the scalp), causing scaly patches and hair loss, not typically fluid-filled blisters from bites.
- D. Psoriasis is a chronic autoimmune condition causing silvery, scaly patches, not a contagious parasitic infestation.
Pediculosis Capitis (Head Lice)
A contagious parasitic infestation of the scalp by head lice, characterized by intense itching, small red bumps, and visible nits (lice eggs) attached to hair shafts.
- Transmitted by direct head-to-head contact or shared items.
- Common in school-aged children.
- Barbers must refuse service and refer to a physician.
Memory trick: Itchy blisters on the scalp? Think lice, not just a scrap!