NR 283: PATHOPHYSIOLOGY EXAM 2 2025 QUESTIONS AND ANSWERS

NR 283: PATHOPHYSIOLOGY
EXAM 2 2025 QUESTIONS AND
ANSWERS


Functions of the skin - ....ANSWER ...--First line of defense


-Prevents excessive fluid loss

-Controls body temperature

-Active in sensory perception

-Synthesizes vitamin D


Mixed flora - ....ANSWER ...-Components differ in various areas of the

body


Microbes - ....ANSWER ...-Reside under fingernails, in hair follicles and in

glands


Opportunistic infections - ....ANSWER ...-May occur because of injury or

other inflammatory lesion




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, Pruritus - ....ANSWER ...-Itching of the skin


Pruritus is associated with: - ....ANSWER ...--Allergic responses, type I

sensitivity

-Chemical irritation caused by insect bites

-Infestations by parasites (scabies)


Cause of pruritus - ....ANSWER ...-Release of histamine in a hypersensitivity

response


Effects of pruritus - ....ANSWER ...--Redness and itching - inflammation


-Risk of infection due to scratching


Contact Dermatitis - ....ANSWER ...-Allergic skin rash, caused by a type IV

reaction to direct contact with a chemical


Allergic contact dermatitis - ....ANSWER ...-Exposure to an antigen, such as

metals, cosmetics, soaps, chemicals, plants

Sensitization occurs on first exposure - type IV cell-mediated hypersensitivity -

....ANSWER ...-Allergic contact dermatitis


Symptom of allergic contact dermatitis - ....ANSWER ...-Pruritic rash

develops at site a few hours after exposure




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