Which signs are manifestations of the Cushing triad? Select all that apply.

Choice A rationale

Onychocryptosis, also known as an ingrown toenail, is a condition where the edge of the toenail grows into the surrounding skin. This can cause pain, swelling, and sometimes infection. It is not related to a dermatophyte infection, which is a fungal infection affecting the toenail.

Choice B rationale

Pediculosis refers to an infestation of lice, which are small parasitic insects that feed on human blood. It typically affects areas like the scalp, body, and pubic region but not the toenails. Pediculosis is not related to fungal infections.

Choice C rationale

Tinea pedis, commonly known as athlete's foot, is a fungal infection that primarily affects the skin on the feet, particularly between the toes. While it is a dermatophyte infection, it does not specifically affect the toenails.

Choice D rationale

Onychomycosis is a fungal infection of the toenails or fingernails. It is caused by dermatophytes, yeasts, or nondermatophyte molds. The infection leads to thickened, brittle, and discolored nails, which accurately describes a dermatophyte infection of the toenail.

Choice A rationale

A papule is a small, raised, solid pimple or swelling on the skin, often forming part of a rash. It does not typically contain pus and is not associated with impetigo, which is characterized by pustules.

Choice B rationale

A vesicle is a small fluid-filled blister on the skin, usually containing clear fluid. Impetigo typically presents with pustules rather than vesicles.

Choice C rationale

A wheal is a raised, itchy area of skin that is often a sign of an allergic reaction. It is not characteristic of impetigo, which involves pustules.

Choice D rationale

Impetigo is a highly contagious bacterial skin infection that usually presents with pustules, which are raised lesions containing pus. These pustules can rupture and form a yellowish crust, which is a hallmark of impetigo.