| N Methylhistamine, 24 Hour Urine |
| Natural Killer (NK) Cell Count |
| Natural Killer (NK) Cytotoxicity Profile |
| Neisseria Gonorrhea Culture |
| Neisseria Gonorrhea Detection by GCMAP |
| Neonatal Transfusion |
| Nephrology Panel |
| Nettle |
| Neuromyelitis Optica IgG Autoantibody Test |
| Neuron Specific Enolase, CSF |
| Neurontin |
| Neutrophil Absolute Differential |
| Neutrophil Function Adherance |
| Newborn (PA) Supplemental Screen |
| Nicotine & Metabolite (Blood) |
| Nicotine/Cotinine (Urine) |
| Nipple Discharge - Cytology |
| Nocardia Culture |
| Nortriptyline |
| NPM1 Mutation Testing |
