PSI Barbering Practice Exam

An example of a bulla is which of the following?

1. Impetigo

2. Fungal infection

3. Acne

4. Eczema

The correct answer is: Impetigo

A bulla is a fluid-filled sac or blisters that can occur on the skin. It is characterized by its larger size compared to typical blisters. Impetigo, a bacterial skin infection, often presents with lesions that can evolve into bullae, especially in its more severe forms. The blisters in impetigo can be filled with pus and can break open, leading to the characteristic crusty sores of the condition. Other options listed do not typically result in the formation of bullae. Fungal infections and acne generally manifest differently, such as through scaling, reddened lesions, or clogged pores. Eczema also does not primarily produce bullae, as it typically results in itchy, inflamed areas of skin that are more prone to dryness and irritation rather than fluid-filled blisters. Thus, impetigo stands out as the best example of a condition that can lead to the formation of bullae on the skin.