Which is the most specific of the urine drug tests?
A. Immunoassay drug panels
B. Gas chromatography-mass spectrometry
C. Hair test
D. Breath test
E. Saliva screen
Answer: B
Which is the most specific of the urine drug tests?
A. Immunoassay drug panels
B. Gas chromatography-mass spectrometry
C. Hair test
D. Breath test
E. Saliva screen
Answer: B