Which of the following biological fluids is the specimen of choice for screening and/or analyzing drugs of abuse?
A) Serum
B) Whole blood
C) Urine
D) CSF

Question

Quizplus · Accepted Answer

Urine is the most commonly used specimen for the screening and analysis of drugs of abuse due to its ease of collection, the ability to test for a wide range of substances, and the longer detection window for many drugs compared to other biological fluids.

Which of the Following Biological Fluids Is the Specimen of Choice