Test Code Test Name
38007 NAbFeron® (IFNB-1) Neutralizing Antibody Test
4950 Naproxen, Serum/Plasma
37088 Natural Killer Cells
16504 Neisseria gonorrhoeae RNA, TMA, Rectal
70049 Neisseria gonorrhoeae RNA, TMA, Throat
11362X Neisseria gonorrhoeae RNA, TMA, Urogenital
15033 Neisseria gonorrhoeae, TMA (Alternate Target), Urogenital
15903X Neisseria meningitidis, IgG, Vaccine Response, MAID
92055 Nemaline Myopathy
91623 NeoCerebellar Degeneration Paraneoplastic Profile with Recombx®
91636 NeoComplete Paraneoplastic Evaluation with Recombx®
91622 NeoEncephalitis Paraneoplastic Evaluation with Recombx®
NSYTX Neonatal Urine Drug Screen
NWX3 Neonatal Workup
93917 Neopterin, Serum
61861N Nettle (W20) IgE (2420X)
13979 Neurofilament Light Chain (NfL)
19248X Neurofilament Protein (NFP), IHC with Interpretation
19381X Neurofilament Protein (NFP), IHC without Interpretation
93890 Neurology Antibody, CBA IFA
93892 Neurology Antibody, Line Blot
83185 Neuromyelits Optica Autoab IgG
34476 Neuron Specific Enolase (NSE), Serum
39239 Neuron Specific Enolase, CSF
19250X Neuron-Specific Enolase (NSE), IHC with Interpretation
19383X Neuron-Specific Enolase (NSE), IHC without Interpretation
1606N (8976) Neutrophil Antibody, Flow Cytometry (1606X)
37523 (37523) Neutrophil Function, Oxidative Burst
38651 Nevoid Basal Cell Carcinoma (NBCCS) (Gorlin) Syndrome Panel (PTCH1, SUFU)
NBS1 Newborn Screen Test 1
NBS2 Newborn Screen Test 2 
NF1 NF1 (Invitae)
93941 NF1 Sequencing and Deletion/Duplication
NF2 NF2
36443 Nickel, 24-Hour Urine
5215 Nickel, Random Urine
4696 Nickel, Serum/Plasma
90642 Nicotine and Cotinine, Serum/Plasma
90646 Nicotine and Cotinine, Urine
82510 Nicotine/metabolites Urine
90893 Niemann-Pick Disease Mutation Analysis
6225 Nifedipine, Serum/Plasma
8333 Nitrazepam and Metabolite, Serum or Plasma
39877 NKX 3.1, IHC without Interpretation
39876 NKX3.1, IHC with Interpretation
92394 (AT419) NMDA Receptor (NR1-subunit) Autoantibody Test
39559 N-Methylhistamine, 24 Hour, Urine
39604 N-Methylhistamine, Random, Urine
38313 NMO Spectrum Evaluation (AQP4 with Reflex to MOG), CSF
38312 NMO Spectrum Evaluation (AQP4 with Reflex to MOG), Serum
449 (8280) Nonesterified Fatty Acids (Free Fatty Acids)
37562 Norepinephrine, Plasma
19098 Norovirus RNA, Qualitative Real-Time PCR
272 (81858) Nortriptyline
1175 NOTCH3 (CADASIL) Sequencing Test
16158 NPM (Exon 12) Mutation Analysis, Cell-based
13694 NPM1 Mutation for MRD, Quantitative PCR
16818 NRAS Mutation Analysis
NTBNP NT-proBNP
12352 NTRK FusionSEQ Panel
2718 (2718) Nutmeg (Rf282) IgE**