Quality accreditation
TDL participates in recognised National External Quality Assessment Schemes. These schemes are subscribed to by NHS and private laboratories. Results are subjected to strict internal and external quality control.
Biochemistry
UKNEQAS, WEQAS, RIQAS, BIORAD, LABQuality for
ACE
Acute and Chronic Kidney Disease
AFP / CEA & HCG
Antibiotics (Gentamicin, Vancomycin and Amikacin)
Anti-Hbs Detection
Ammonia
Autoimmune (RF and TPO)
B2 Microglobulin
Cardiac Markers
Clinical Chemistry
CMV IgG / IgM
CRP & Ultra-Sensitive CRP
CSF
Cyclosporin and Tacrolimus
DEQAS
Diagnostic Serology Exanthem
Diagnostic Serology Hepatitis
Drugs of Abuse
Ethanol
Faecal Markers for Inflammation (Calprotectin)
Free Beta HCG and PAPP-A
GFR
Glucose / Glucometer
Glycated Haemoglobins
Guildford Peptides
Haematinics
HcG
Healthcontrol Therapeutic Drugs Screen (TDM)
Hepatitis A (with B and C)
Hepatitis B Serology
Hepatitis C Serology
HIV Serology
Homocysteine
HTLV
IGF-1
Infectious Immunology
Lipase
Lipid Investigations
NT-Pro BNP
Paediatric Bilirubins
Parasitology
Peptide Hormones
PSA, Free PSA
PTH, ACTH and hCT
QFIT
Rubella IgG Serology
Salicylate and Paracetamol
Serum Indices
Specific Proteins
Steroid Hormones
Syphilis Serology
Thyroglobulin Surveys
Thyroid Hormones
Total IgE
Tumour Markers
Toxoplasma IgG Serology
Toxoplasma IgM Serology
Trace Elements
Urine Chemistry
Vitamin D (25 OH)
Haematology
UKNEQAS
Automated Differential Leucocyte Count
Blood Film Morphology
Blood Transfusion Laboratory Practice Scheme (BTLP)
Coagulation (Including PoCT Coagulation)
EBV Mononucleosis
ESR and NRBC (nucleated Rbc)
Flow Cytometry:
Leukaemia immunophenotyping
Myeloperoxidase
Iron stain
Full Blood Count
Haematology
Haematology Analysis
Malaria
Parasite Films
Reticulocyte
Sickle Screening
Thrombophilia Screening
Special Coagulation
Anti-Xa Assays
ADAMTS-13 Activity
ADAMTS-13 Antibody
Heparin / Platelet Factor 4
Induced Antibodies
Lupus Anticoagulant:
DRVVT Assay
Taipan Venom Time
Plasma Viscosities
Platelet Function Analysis (RCPA)
Von Willebrand (vWD) screen
Genetics and Molecular Virology
MOLECULAR GENETICS AND CYTOGENETICS
GENQA, EMON, UKNEQAS, ECAT, LABQuality for
Acquired Array (CLL/MDS)
Acute Lymphoblastic Leukaemia (ALL) – G-banding and FISH
Antithrombin AT3 (SERPINC1)
BCR ABL1 and AML Translocation Identification
BCR ABL1 Kinase Domain Variant
BCR ABL1 Major Quantification
BCR ABL1 Minor Quantification
BRAF p.Val600Glu (V600E) Mutation Status for Hairy Cell Leukaemia
Chlamydia & Gonorrhoea Detection by PCR
Chronic Lymphocytic Leukaemia (CLL)
Constitutional Clinical Cytogenetics (Rounds for Amniocentesis, CVS, Solid Tissue, Blood, Array)
Cystic Fibrosis
Duchenne/Becker Muscular Dystrophy
Factor VII (F7)
FLT3 Mutation Status
Genetics of Heritable Bleeding Disorders
Haematological Technical FISH
Hereditary Haemochromotosis (C282Y+H63D) genotyping + reporting
HLA Class I (HLA-A, HLA-B, HLA-C) Tissue Typing (low resolution)
HLA Class II (HLA-DRB1, HLA-DQB1) Tissue Typing (low resolution)
HLA-B27 Genotyping
HLA-B57*01 Genotyping
HLA+ Disease Typing Cytochrome P450 2C19 genotyping
Human Papillomavirus DNA
IG/TCR Clonality Status
IGHV for CLL
Inborn Errors of Metabolism
KIT p.Asp816Val (D816V) Mutation Status for Mast Cell Disease
Lymphoid Gene Panels
Lymphoma
Lymphoplasmacytic Lymphoma / Waldenstrom Macroglobulinaemia
Measurable Residual Disease for AML by Molecular Methods
Myeloid (AML/MDS/CML) – G-banding and FISH
Myeloid Gene Panels
Myeloma – sample FISH set up and analysis plus online
Myeloproliferative Neoplasms Diagnostic Testing
NGS AML Gene Panel
NGS Myeloid Target Panel
NIPT for Aneuploidies and Sexing
NMP1 Mutation Status
Paediatric Acute Leukaemia Translocations
QF-PCR Aneuploidy Detection
Sexually Transmitted Diseases (CT/NG/MGEN/TV/UU/UP)
Spinal Muscular Atrophy
Thrombophilia (Factor II, V, MTHFR)
TP53 for CLL
Y Microdeletion PCR Assay
Molecular virology
QCMD, INSTAND, LAB QUALITY/Aurevia for
Adenovirus DNA Viral load and Qualitative PCR
Bacterial 16S
B19 virus DNA Viral load
BK virus DNA Viral load
CMV DBS (dried blood spots)
CMV DNA Plasma Viral load
CMV DNA Whole Blood Viral load
CMV Resistance
EBV DNA Plasma Viral load
EBV DNA Whole Blood Viral load
Enterovirus RNA
Gastroenteritis Virus Panel
HBV Qualitative PCR
HCV Qualitative PCR
HIV Qualitative PCR
Hepatitis B Genotyping
Hepatitis B Drug Resistance Typing
Hepatitis B Viral Load
Hepatitis C Genotyping
Hepatitis C Resistance Genome Detection (NS5a & b)
Hepatitis C Resistance Typing (NS3 & NS5a)
Hepatitis C Viral Load
Hepatitis D Virus Viral load and Qualitative PCR
Hepatitis E Virus Viral load and Qualitative PCR
HIV-1 DNA Genome Detection
HIV-1 Drug Resistance (Integrase)
HIV-1 Drug Resistance (Pol)
HIV-1 RNA Viral load and Qualitative PCR
HIV-1 Tropism Genome Detection
HIV-2 Viral Load
HSV 1&2 DNA
HSV 1&2 DNA HSV Drug Resistance
Human Herpes Virus 6 DNA
Human Herpes Virus 8 Viral Load and Qualitative PCR
Influenza Haemagglutinin Typing
JC Virus DNA
Measles and Mumps PCR
MERS Coronavirus
Parechovirus RNA
Respiratory Panel I
Respiratory Panel II
SARS-CoV-2 (COVID-19) PCR/NAAT
Sexually Transmitted Disease:
CT/GC/TV/MGen
Fast CTGC (Rectal/Throat Swab, Urine)
LGV PCR
Mycoplasma Genitalium Resistance
Qualitative HIV (Cepheid)
Quantitative HIV (Cepheid)
Syphilis PCR
Transplantation Virus Panel
VZV DNA
Infection Sciences
AAFB Microscopy
Acanthamoeba
Antibacterial Susceptibility
Antifungal Assays
Antifungal Susceptibility
Antimicrobial Susceptibility
Aspergillus spp. DNA
Aspergillus PCR
Bacterial Vaginosis
Blood Culture and Gram Stain
Bordetella pertussis DNA
Candida auris
Candida PCR
Candida spp.
Central Nervous System II (Non-viral meningitis and encephalitis)
Chlamydophila pneumoniae
Clostridioides difficile Detection and Toxin Testing
CSF
Cryptosporidia and Giardia in Faeces
Dermatophytosis
Faecal Parasitology
Fungal Biomarkers
General Bacteriology
Genital Pathogens
Group A Streptococcus (GASDNA)
Helicobacter pylori Drug Resistance Nucleic Acid Detection
Helicobacter pylori Antigen from Faeces
Legionella PCR
MSSA/MRSA Screening
Mycobacteria Blood Culture
Mycobacteria (Molecular)
Mycology Microscopy and Culture
Mycoplasma PCR
Mycoplasma pneumoniae
Pneumocystis jirovecii Pneumonia (PCP) DNA
POCT Urinalysis
Polarising Crystal Microscopy from Synovial Fluid
Quantitative Urine Analysis
Rapid MRSA (Cepheid)
Sterile Body Fluid
Streptococcus pyogenes (Group A) detection in pharyngeal samples
Surveillance for multidrug resistant bacteria, VRE
Trichomonas vaginalis
Urine Analysis
Urine Antigen
Immunology
UKNEQAS: General Immunology
Allergen Component Testing
Allergen Specific IgE Antibodies
Anti-Phospholipid Antibodies (B2GP)
Autoimmune Serology ANCA/GBM Antibodies
Bullous Dermatosis Antibodies
Coeliac Disease (Endomysium, Tissue transglutaminase)
COVID-19 Antibodies
Diabetic Marker (Islet Cell Antibodies)
Faecal Markers (Calprotectin)
General Autoimmune Serology
Hepatitis E (IgG and IgM)
IGRA (Interferon gamma release assay)
Intrinsic Factor Antibodies
Lyme (IgG + IgM)
Myositis Associated Antibodies
Nuclear and Related Antigens
Specific Microbial Antibodies
Syphilis (THPA and RPR)
Tryptase
Immunology
UKNEQAS: Infectious Immunology
Anti-Hbs Detection
CMV IgG/IgM
Diagnostic Serology Hepatitis
Helicobacter pylori Antigen from Faeces
Hepatitis B Serology
Hepatitis C Serology
HIV Serology / POCT
HTLV
Measles and Mumps Serology
Parasite Serology
Parvovirus and Rubella Serology
Syphilis Serology
Toxoplasma IgM Serology
Toxoplasma IgG Serology
Immunology
RCPAQAP Scheme
Chlamydia Serology
Legionella (IgG) Serology
Striated Muscle Antibodies
INSTAND Scheme
Adrenal Antibodies
HDV Serology and Functional Complement
Hepatitis E Serology
CSCQ Scheme
Lyme Borrelia Serology
Laboratory Quality Scheme
Antistreptolysin O Titre
Cytomegalovirus Antibodies
EBV Serology
Euroimmun ifQ-Lubeck (Liver) Autoimmune Disease Scheme
Helicobacter pylori IgG Antibodies
Herpes Simplex 1 & 2 Antibodies
Measles Serology
Mumps Serology
Mycoplasma Serology
RNA Polymerase III
VZV Serology
Endocrinology
UKNEQAS
AFP / CEA
Allergens Scheme
Peptide Schemes 1 to 4
Prostate Specific Antigen
PTH
SHBG
Specific IgE / Total IgE
Steroid Hormones
Thyroid Scheme
Tumour Markers
Cervical Screening
NHS England
Gynaecological Cytopathology EQA Scheme (GEQA)
National EQA Scheme for the Preparation and Staining of Cervical Liquid Based Cytology Samples (TEQA)
HOLOGIC EQA scheme for
ThinPrep Stain
UKNEQAS for Microbiology
Molecular Detection of HPV
Diagnostic Cytology
UKNEQAS for CPT
Stained Non-Gynaecological Cytology Module
All non-gynaecological (diagnostic cytology), including Urine Cytology, are referred to a UKAS accredited laboratory for reporting.
Andrology
UKNEQAS
Semen Analysis Scheme
Environmental management systems
ISO 14001:2015
Medical Laboratories requirements for quality and competence
ISO 15189:2012
Information security
Accredited by British Standards Institute ISO/IEC 27001:2022
Cyber Essentials (ea8ed5b8-9f2e-46a7-8e15-2642135935f9)
Cyber Essentials+ (0e8818ba-e049-42c5-a9af-f88bf42456d6)
Links to the UKAS schedules of accreditation (in PDF format)
(Certain UKAS accreditations can be found under Health Services Laboratories (HSL), which is part of the TDL Group of Laboratories.)
HSL Molecular Pathology and Genetics (8059)
HSL Cellular Pathology (Histopathology, Diagnostic Cytology & HSL Advanced Diagnostics) (9007)
CQC Reports
TDL is monitored by the Care Quality Commission, the independent regulator of health and social care in England.
You can find out details of their inspection summaries using the links below:
The Doctors Laboratory, The Halo Building
https://www.cqc.org.uk/location/1-5588555895
The Doctors Laboratory, Patient Reception, 76 Wimpole Street
https://www.cqc.org.uk/location/1-2166893538