Utah Esthetician State Board Practice Exam

Pityriasis rosea is believed to be caused by which factor?

1. Allergic reaction

2. A virus

3. Fungal infection

4. Bacterial infection

The correct answer is: A virus

Pityriasis rosea is believed to be caused by a viral infection, making the choice of a virus the correct response. This condition is often associated with a specific type of virus known as the human herpesvirus 6 (HHV-6) or sometimes human herpesvirus 7 (HHV-7), although the exact virus responsible is not definitively established. The characteristic "herald patch" and the subsequent rash that appears in a "Christmas tree" pattern on the body are part of the illness, which typically resolves on its own within several weeks to months. Understanding the viral nature of this condition helps in differentiating it from other skin disorders that might have similar presentations but are caused by different pathogens, such as fungi or bacteria. Recognizing that pityriasis rosea is not primarily caused by allergic reactions or infections from fungi or bacteria reinforces the importance of correctly identifying viral infections in dermatological practice. This knowledge will assist estheticians in making informed choices regarding treatment options and patient care.