What steps should be employed by a toxicologist in an analytical scheme to look for barbituates in a urine sample? What chemicals or instrumentation should be used at each step?
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(Question #2) For each task listed, specify whether the task should be carried out by a forensic toxicologist, clinical/hospital toxicologist, or neither.
a. Analyze an unidentified white powder
b. Establish the alcohol content of a whole blood sample
c. Analyze a urine sample for heroin metabolites
d. Analyze a dried bloodstain for the presence of DNA
e. Analyze a blood sample for the presence of HIV
f. Analyze a victim's clothing for seminal evidence
g. Analyze scalp hair for the presence of a heavy metal poison
h. Perform toxicity studies on a new pharmaceutical drug
i. Estimate the influence of a drug on an individual
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(Question #3) List and describe the functions of the three types of blood vessels in the circulatory system and the roles they play in metabolism of alcohol.
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(Question #4) Following field sobriety testing, a driver is transported to the police station for an offcial breath-alcohol test. Explain what safeguards and instrumental parameters must be in place before, during, and after the breath test to ensure its accuracy.
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(Question #5) Explain the DRE program.
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