A client received 2 units of packed red blood cells while in the hospital with rectal bleeding. Three days after discharge, the client experienced an allergic response and began to itch and break out with hives
What type of reaction does the nurse understand could be occurring? A) Delayed hypersensitivity response
B) Anaphylactic reaction
C) Sensitization
D) An immediate hypersensitivity response
A
Feedback:
A delayed hypersensitivity response may develop over several hours or days, or it may reach maximum severity after repeated exposure. Examples of a delayed hypersensitivity response include a blood transfusion reaction that occurs days to weeks after blood administration, rejection of transplanted tissues, and reaction to a tuberculin skin test. Anaphylaxis is a rapid and profound type I hypersensitivity response. Sensitization is the process by which cellular and chemical events occur after a second or subsequent exposure to an allergen. An immediate hypersensitivity response is due to antibodies interacting with allergens and occurs rapidly.
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