N-telopeptide (NTX), urine

Biochemistry

Naïve T Cell Phenotyping

Immunology

1-2 routine working days

Needlestick/Splash Incident

Microbiology

1 Day

Nerve biopsies

Cellular Pathology

Neurone Specific Enolase, serum

Biochemistry

4 hours

Neurotransmitters

Biochemistry

Neutrophil Count (part of FBC)

Haematology

Urgent within 1 hour. Routine within 4 hours.

Neutrophil Respiratory Burst

Immunology

2 routine working days

Nickel, serum

Biochemistry

Nickel, urine

Biochemistry

Niemann Pick Disease Types A and B

Biochemistry

NK cell Granule Release

Immunology

4 Days working days

Non-Blood body Fluids

Haematology

1 hour urgent samples/ 4 hour’s routine

Norovirus PCR Test

Microbiology

3 days

NPM1

Molecular Genetics

2 weeks

NTM susceptibility

Microbiology

up to 14 days