NURSING EXAM QUESTIONS
TOXICOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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After a screening test has been used to determine the identity of an abused drug, the confirmation test of choice is
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Gas chromatography
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Gas chromatography/mass spectrometry
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Thin layer chromatography
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Immunoassay
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Explanation:
Detailed explanation-1: -In forensic investigations, gas chromatography is used in toxicology screening to determine if a deceased person has ingested drugs or alcohol prior to death. It can also be used to tell if a victim of crime has been poisoned.
Detailed explanation-2: -The only accepted method for drug confirmation in forensic toxicology is mass spectrometry. Every analytical technique, be it mass spectrometry or a screening test, has a limit of detection-that is, a level below which a reliable result cannot be determined.
Detailed explanation-3: -Techniques with the most discriminating power (category A) are listed as infrared spectroscopy, mass spectrometry, nuclear magnetic resonance spectroscopy, and Raman spectroscopy.
There is 1 question to complete.