BIOCHEM 3H03 Study Guide - Midterm Guide: Fecal Occult Blood, Gallstone, Gastric Acid

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Branch of medicine that provides laboratory results, interpretation and consultation. Examines the chemical content of biological fluids. Guide for decision making and management of patients. Diagnosis: establish underlying reason for the signs, symptoms, and complaints. Monitoring: follow course of condition; monitor blood concentrations of drugs. Screening: look for condition in absence of signs/symptoms; detection of sub-clinical disease: population screening- newborn screening programs, screening based on risk (i. e. screening for colon cancer using fecal occult blood testing) Prognosis: establish risk and potential timeline for future event: lipid measurement to establish cardiovascular risk. Samples used: blood, urine, csf; stool, amniotic fluid, gastric juice, gall stone, kidney stone, saliva, tissue specimen choice depends on analyte to be measured, biological considerations and ease of collection. Blood analysis: testing can be done on whole blood, serum or plasma; choice depends on: Analyte to be measured: most analytes found in serum or plasma; hematology tests use whole blood.

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