EVIDENCE LIBRARY
Hospital Blood Tests
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
In a controlled study, alcohol raised sleeping heart rate and altered REM sleep—but those changes did not predict next-day task effects. See the forensic limits.
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Oct 20, 2026
Urine isoxanthohumol can follow alcoholic or nonalcoholic beer. Review the 33-person evidence, hop-marker limits and why it cannot establish BAC or impairment.
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Oct 20, 2026
A 22-volunteer study measured leukocyte phagocytosis, ROS and caspase markers after drinking. Learn why BAC and cell assays cannot prove a trauma infection was alcohol-caused.
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Oct 20, 2026
A study of 89 social drinkers linked MRI gray-matter density with self-rated alcohol effects. Why those findings cannot determine BAC, driving impairment or causation.
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Oct 20, 2026
Can an archived DUI blood-alcohol sample retest lower after 12 months? A whole-blood HS-GC study compares ethanol loss in glass versus plastic tubes.
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Oct 20, 2026
A 201-case poisoning study compared recorded drinking history with clinical blood ethanol results. Examine 2×2 counts, missing histories and forensic limits.
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Oct 20, 2026
What does a skin alcohol monitor prove? A 2021 Bayesian study shows why transdermal readings and credible bands cannot establish precise individual BrAC or BAC.
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Oct 20, 2026
In a 42-person crossover study, AST and ALT fell during low-dose alcohol exposure, but between-period changes were not significant. Learn the forensic limits.
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Oct 20, 2026
A controlled 23-person study found no detectable blood ethanol after wet alcohol skin prep under careful collection. See GC limits and forensic caveats.
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Oct 20, 2026
A 15-man crossover trial found lower measured breath alcohol with an alanine-tomato formulation. Learn why this does not prove lower blood BAC or sobriety.
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