A child who has a reduced level of 5-HIAA in their csf (cerebrospinal fluid) will be expected to be more likely to have the potential for crimes such as assault, arson, and murder.
5-HIAA is a urine test that measures the amount of 5-hydroxyindoleacetic acid (5-HIAA). 5-HIAA is a breakdown product of a hormone called serotonin. This test tells how much 5-HIAA the body is producing. It is also a way to measure how much serotonin is in the body. With low values, levels less than 2 mg/24 h are found in depressive illness, Hartnup disease, mastocytosis, phenylketonuria, renal disease, and related small intestine resection (related to a decrease in enterochromaffin-producing cells). Women generally have lower levels than men. Higher levels of 5-HIAA may mean you have: Carcinoid tumors.
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