3111SP |
Naloxone - Free (Unconjugated), Serum/Plasma |
3116SP |
Naltrexone and Metabolite - Free (Unconjugated), Serum/Plasma |
3118SP |
Nateglinide, Serum/Plasma |
3145SP |
Nefazodone, Serum/Plasma |
3150SP |
Nicotine and Metabolite, Serum/Plasma |
3150TI |
Nicotine and Metabolite, Tissue |
3174SP |
Nitrate/Nitrite (Qualitative), Serum/Plasma |
3175SP |
Nitrazepam and Metabolite, Serum/Plasma |
3214TI |
Nitrous Oxide, Tissue |
3216SP |
Nordiazepam and Metabolite, Serum/Plasma |
3218SP |
N,N-Dimethylpentylone & Pentylone, Serum/Plasma |
3225SP |
Nuedexta®, Serum/Plasma |
8756SP |
Novel Psychoactive Substances (NPS) Screen 1, Serum/Plasma |
9215SP |
Nitrazepam and Metabolite Screen, Serum/Plasma |
9404SP |
Nicotine and Metabolite Screen, Serum/Plasma |