________ are cells in the epidermis that are part of the immune system.

Correct Answer: C

Rationale: The correct answer is C: Dendritic cells. Dendritic cells are immune cells found in the epidermis that play a crucial role in initiating immune responses. They capture antigens and present them to T cells, triggering an immune response. Squamous cells (A) are flat cells in the skin, Merkel cells (B) are touch receptors, and Melanocytes (D) produce melanin for skin pigmentation. They are not directly involved in the immune system function within the epidermis.

Correct Answer: A

Rationale: The correct answer is A: Bluish color around the lips and earlobes. This indicates cyanosis, a sign of inadequate oxygenation. Immediate further assessment or intervention is crucial as it suggests potentially severe respiratory or circulatory issues. - Choice B: Yellow skin and sclera indicate jaundice, often a sign of liver dysfunction, which requires attention but is less urgent. - Choice C: Bilateral erythema of the face and neck suggests a possible allergic reaction or skin condition, which is concerning but not immediately life-threatening. - Choice D: Dark brown spotting on the chest and back may indicate skin issues or a benign condition, requiring assessment but not as urgently as cyanosis.

Correct Answer: B

Rationale: The correct answer is B: Irrigate the back and legs with 4 L of sterile normal saline. This intervention is priority as it aims to remove the toxic chemicals from the client's skin, preventing further damage and absorption. Immediate decontamination is crucial in chemical exposure cases to minimize systemic effects. Choice A focuses on fluid resuscitation but is secondary to decontamination. Choice C, obtaining blood for lab tests, can wait until after decontamination. Choice D, documenting the burn surface area, is important but not as urgent as decontamination in this scenario. Prioritizing decontamination will help prevent further harm and improve the client's outcomes.

Correct Answer: D

Rationale: The correct answer is D: Vesicle. A vesicle is a small elevation of the skin filled with clear fluid (serum). It is also round in shape. A macule (Choice A) is a flat, discolored area. A papule (Choice B) is a small, solid raised bump. A wheal (Choice C) is a raised, red, itchy area caused by a localized allergic reaction. Therefore, based on the description of the lesion being elevated, round, and filled with serum, the correct type of lesion is a vesicle.

Correct Answer: B

Rationale: Certainly! The correct answer is B: Parasitic fungi. Dermatophytoses, commonly known as ringworm, are fungal infections that affect the skin, hair, and nails. These infections are caused by a group of fungi known as dermatophytes. They thrive on keratinized tissues such as skin, hair, and nails. Itch mites (A) are responsible for scabies, not dermatophytoses. Reactivated virus (C) refers to conditions like shingles, unrelated to dermatophytoses. Pediculosis (D) is caused by lice infestation, not fungal infections like dermatophytoses.