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Larry Has Been Using Heroin for Several Years

question 268

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Larry has been using heroin for several years. Normally he injects the drug in his basement, but one night on a vacation he injects the drug in his hotel room. Despite the fact that he uses the same heroin and dose that he normally does, Larry overdoses and dies. What phenomenon is likely responsible?


Definitions:

Tonsils

Masses of lymphoid tissue located at the back of the throat that help protect the body from infection and play a role in the immune system.

Antigenic Determinants

Specific parts of a molecule that are recognized by the immune system, critical for the specificity of immune responses.

Epitopes

Specific parts of an antigen that are recognized by the immune system, specifically by antibodies, B cells, or T cells.

Lymphocytes

A subtype of white blood cells involved in the immune response, including B cells, T cells, and natural killer cells.

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