Presentation of forensic toxicology 1-1.pptx

Forensic Medicine toxicology, which composed of various poison etc and their effects on health are discussed in this ppt

1. Kishwar Anees Post RN , M.Phil. MPH Forensic Medicine

2. Content Outline : What is Forensic Medicine ? What is toxicology ? Branches of Toxicology Forensic Toxicology Important factors in forensic toxicology Poison and Classification of Poison Types of Poisoning Samples to be analyzed in forensic toxicology

3. What is forensic Medicine? Forensic Medicine is a group of medical specialties which deal with the examination and diagnosis of individuals who have been injured by or who died because of external or unnatural causes such as poisoning , assault , suicide , and other forms of violence .

4. What is Toxicology ? Toxin: A poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plants and animal species . Dose : ‘’ Dose makes the poison ‘’ , is a fundamental principle of toxicology is a much more nuanced and complex than this simple statement . Toxicology : The study of nature , effects , and detection of poisons and the treatments of poisoning.

5. Branches Of Toxicology : Clinical Toxicology Medical Toxicology Forensic Toxicology Industrial Toxicology Environmental Toxicology Biochemical And Molecular Toxicology Product Development Toxicology Regulatory Toxicology

6. Forensic Toxicology : Definition Forensic Toxicology focuses on medical legal aspects of chemical exposure and toxic injury . Forensic Toxicologist Forensic Toxicologist is a person who must consider the context of an investigation , in particular any physical , symptoms recorded , and any evidence collected at a crime scene that may narrow the research such as pill bottles, powders , trace residues , and any available chemicals .

7. Important Factors in Forensic Toxicology : Does make the poison The concentration of chemical The threshold required to exert a particular effect How the interaction takes place Which factors are important in each exposure scenario

8. Poison : Poison is any substance when administered in living body through any route ( Inhalation , ingestion , injection , surface absorption ) will produce ill-health or death by its action which is due to Physical chemical Physiological properties . Examples Alphos Sulphuric acid Arsenic etc.

9. Classification of Poison : 1. Corrosive (a) Acids : H2SO4 , HCL , Nitric Acid , Acetic Acid , Salicylic acid , Carbolic Acids. (b) Alkali : Hydroxides and carbonates of sodium , potassium and ammonia . 2.Irritants : (a) Inorganic : Arsenic , phosphorous , Arsenic , Mercury , Iron , zinc . (b) Organic : Castor oil , croton oil and seed , ergot Snakes , scorpion , spider and poisonous insects . (c) Mechanical : powdered glass , Diamond rust , hair pin , Needles , Nails etc.

10. 3. Neurotoxins Opium and its alkaloids like morphine , codeine , thebaine , Noscapine and Narceine . Cannabis , Atropa Belladonna , Cocaine , Camphor etc. 4. Cardiac Poison : Aconite Digitalis Tobacco 5.Respiratory Poison : Carbon Monoxide Carbon Dioxide Sulphur Dioxide War gas

11. Miscellaneous : Analgesics and Antipyretics Antihistamines Tranquilizers Antidepressant Hallucinogens Food Poisoning Drug Dependence

12. Types of Poisoning : 1.Acute Poisoning ; Acute Poisoning is caused by an excessive single dose , or several doses of a poison taken over a short interval of time 2. Chronic Poisoning ; Chronic Poisoning is caused by smaller doses over a period of time , resulting in gradual worsening 3. Sub-Acute Poisoning ; Sub-acute poisoning shows features of both acute and chronic poisoning . 4.Fulminant Poisoning ; Fulminant Poisoning produced by a massive dose . In this death occur rapidly , sometimes without proceeding symptoms.

13. Samples to be analyzed in Forensic Toxicology : Urine Blood Hair sample Oral fluid Other body fluids