| Test name | Alternative name for |
|---|
| N-Telopeptides Urine | |
| NA | Sodium |
| Naegleria Isozyme speciation | |
| Nail Clippings for Fungi | |
| NARP Gene | |
| NAT Testing (HIV HCV HBV) | Nucleic Acid Testing (HIV-1, HCV, HBV) |
| Naïve & Memory T cells | |
| Neisseria gonorrhoeae culture | Gonorrhoea Culture - non genital |
| Neisseria meningitidis by PCR | |
| Nelfinavir | |
| Neopterin | |
| Nerve Biopsy | |
| Netilmicin | |
| Neurone Specific Enolase | |
| Neurontin | Gabapentin |
| Neutrophil Antibodies | Granulocyte Antibodies |
| Neutrophil Cytoplasmic antibodies | Anti Neutrophil Cytoplasmic antibody |
| Nevirapine | |
| NH3 | Ammonia |
| Niacin | Vitamin B3 (24 hr urine) |
| Nickel Urine (24hr) | |
| Nickel Urine Random | |
| nicotinic acid | Vitamin B3 (24 hr urine) |
| Nipple Discharge Cytology | |
| Nitrogen Excretion | Urinary Nitrogen Excretion |
| NMDA Receptor Antibody | |
| NMDAR | NMDA Receptor Antibody |
| NMO IgG Antibody | Anti-NMO IgG Antibody |
| Nocardia culture | |
| Noradrenaline | Catecholamines Blood |
| Normandy (Von Willebrand Factor) Gene Analysis | |
| Norovirus PCR | |
| Nortriptyline | Amitriptyline |
| Norwalk Virus PCR | Norovirus PCR |
| Nose culture | Swab for culture - superficial |
| NOTCH3 Mutation Testing | This test is currently being reviewed For information regarding this test please contact the senior scientist on duty in: Human Molecular |
| Novel Coronavirus 2019 PCR | COVID-19 PCR |
| NPM1 Gene Mutation | Nucleophosmin (NPM1) Gene Mutation |
| NPM1 mutant MRD | |
| NPM1 qPCR | NPM1 mutant MRD |
| NRAS mutation (tissue) | Human Molecular - Solid Tumour |
| NS1 Antigen | Dengue Virus Serology |
| NSE | Neurone Specific Enolase |
| NTBNP | Pro-Brain Natriuretic Peptide |
| Nucleic Acid Testing (HIV-1, HCV, HBV) | |
| Nucleophosmin (NPM1) Gene Mutation | |