Postmortem Specimen Selection and Interpretation

Selecting the appropriate specimens for postmortem toxicological analysis is a complex decision-making process based on case history, drug pharmacology, and postmortem changes. This topic equips Zambian college and university students in forensic science and pathology programs with the knowledge to choose between blood (peripheral vs. cardiac), urine, bile, vitreous humor, tissues, hair, and alternative specimens like bone marrow or larvae in decomposed cases. It delves into the interpretive challenges of postmortem redistribution, where drug concentrations can change after death, and the value of different matrices for detecting various substances. Understanding these principles is essential for accurate cause-of-death determinations in Zambia's medico-legal system. Learners will develop the analytical skills needed to interpret toxicology results in context, a core competency for forensic toxicologists, pathologists, and laboratory scientists preparing for advanced diplomas and professional certifications.