Explore a range of blood tests including allergy testing, STI screening, cardiovascular risk assessments and performance profiling to support your health and wellbeing.
Our Allergy Profile ALEX2 Test is an advanced and comprehensive blood test designed to identify sensitivities to a wide range of allergens. Using the ALEX platform, it screens for hundreds of potential triggers, including foods, pollen, dust, and environmental allergens, helping to pinpoint the causes of allergic reactions. This detailed analysis provides valuable insights to guide personalised management plans, reduce symptoms, and improve overall quality of life.
- Comprehensive Allergy Assessment: Allergy Explorer (ALEX2)
Our Cardiovascular Risk 1 blood test is a comprehensive assessment designed to evaluate an individual’s risk of developing heart disease. This advanced panel measures a full lipid profile—including cholesterol, triglycerides, HDL, LDL, and non-HDL cholesterol—alongside key markers such as apolipoprotein A and B, lipoprotein (a), high-sensitivity C-reactive protein (hsCRP), and the LP-PLA2 (PLAC) test. Together, these biomarkers provide a detailed insight into lipid balance, inflammation, and vascular health, supporting early detection and proactive management of cardiovascular risk.
- Cholesterol & Lipid Profile: Total Cholesterol, Triglycerides, High-Density Lipoprotein (HDL) Cholesterol, Low-Density Lipoprotein (LDL) Cholesterol, Non-HDL Cholesterol
- Advanced Lipoprotein Markers: Apolipoprotein A (ApoA), Apolipoprotein B (ApoB), Lipoprotein(a) [Lp(a)]
- Inflammation & Cardiovascular Risk: High-Sensitivity C-Reactive Protein (hsCRP), Lipoprotein-Associated Phospholipase A2 (LP-PLA2 / PLAC Test)
Our Cardiovascular Risk 2 blood test is an advanced, in-depth panel designed to provide a comprehensive assessment of heart health and vascular risk. In addition to a full lipid profile—including cholesterol, triglycerides, HDL, LDL, and non-HDL cholesterol—this test evaluates key biomarkers such as apolipoprotein A and B, lipoprotein (a), fibrinogen, high-sensitivity C-reactive protein (hsCRP), LP-PLA2 (PLAC), and homocysteine. Together, these markers offer detailed insight into lipid balance, inflammation, clotting risk, and vascular function, supporting early detection and more precise management of cardiovascular disease risk.
- Cholesterol & Lipid Profile: Total Cholesterol, Triglycerides, High-Density Lipoprotein (HDL) Cholesterol, Low-Density Lipoprotein (LDL) Cholesterol, Non-HDL Cholesterol
- Advanced Lipoprotein Markers: Apolipoprotein A (ApoA), Apolipoprotein B (ApoB), Lipoprotein(a) [Lp(a)]
- Inflammation & Cardiovascular Risk: High-Sensitivity C-Reactive Protein (hsCRP), Lipoprotein-Associated Phospholipase A2 (LP-PLA2 / PLAC Test)
- Clotting & Vascular Health: Fibrinogen, Homocysteine
Our Basic STI test is a comprehensive screening panel designed to detect common sexually transmitted infections quickly and accurately. It includes blood serology for HIV 1&2 (including P24 antigen) and syphilis (IgG/IgM), as well as urine or PCR swab testing for chlamydia and gonorrhoea. This test provides reliable results for early detection, helping individuals take informed steps for treatment and prevention.
- Blood-Borne Infection Screening (Serology): Human Immunodeficiency Virus (HIV 1 & 2) with P24 Antigen, Syphilis IgG/IgM Antibodies
- Urine or PCR Swab Testing: Chlamydia, Gonorrhoea
Our 10 STI PCR Profile is a comprehensive molecular test designed to detect a wide range of sexually transmitted infections with high accuracy. It screens for chlamydia, gonorrhoea, Mycoplasma hominis, Mycoplasma genitalium, Ureaplasma urealyticum, Trichomonas vaginalis, Treponema pallidum, Haemophilus ducreyi, and Herpes Simplex types I and II. This all-in-one panel enables early detection and informed management of STIs, making it an essential tool for sexual health monitoring.
- Common Bacterial STIs: Chlamydia trachomatis, Neisseria gonorrhoeae
- Mycoplasma & Ureaplasma Infections: Mycoplasma hominis, Mycoplasma genitalium, Ureaplasma urealyticum
- Parasitic Infection: Trichomonas vaginalis
- Additional Bacterial Infections: Treponema pallidum, Haemophilus ducreyi
- Viral Infections: Herpes Simplex Virus Type I (HSV-1), Herpes Simplex Virus Type II (HSV-2)
Our IVF and STI Pre-Screening test is a comprehensive blood panel designed to ensure both reproductive and sexual health before fertility treatments. It screens for HIV 1&2 (including P24 antigen), Hepatitis B (surface antigen, surface antibodies, and core antibodies), Hepatitis C antibodies, and syphilis (TP latex). This thorough pre-screening helps identify infections early, supporting safe IVF procedures and informed patient care.
- HIV Screening: Human Immunodeficiency Virus (HIV 1 & 2) Duo with P24 Antigen
- Hepatitis B Assessment: Hepatitis B Surface Antigen (HBsAg), Hepatitis B Surface Antibodies (Anti-HBs), Hepatitis B Core Antibodies (Anti-HBc)
- Hepatitis C Screening: Hepatitis C Antibodies (Anti-HCV)
- Syphilis Screening: Syphilis TP Latex
Our Hepatitis B Profile blood test provides a complete assessment of Hepatitis B infection and immunity. It measures core antibodies, surface antigen, surface antibodies, and IgG/IgM antibodies, giving a clear picture of current infection, past exposure, or vaccination status. This test is essential for screening, diagnosis, and monitoring, helping clinics deliver accurate and timely patient care.
- Current Hepatitis B Infection: Hepatitis B Surface Antigen (HBsAg)
- Immunity & Previous Exposure: Hepatitis B Core Antibody (Anti-HBc)
- Immune Response Assessment: Hepatitis B IgG/IgM Antibodies
Our Measles, Mumps, and Rubella (MMR) blood test is designed to assess immunity to these common viral infections. By measuring specific antibodies in the blood, this test helps determine whether an individual has adequate protection from previous vaccination or past infection. It is particularly useful for healthcare workers, those planning travel, or individuals unsure of their vaccination status. This simple screening supports informed decisions around the need for vaccination or boosters.
- Immunity Status: Measles, Mumps and Rubella (MMR) Antibodies
Our Immunoglobulins Blood Test is designed to assess key components of the immune system by measuring Immunoglobulin G (IgG), Immunoglobulin M (IgM) and Immunoglobulin A (IgA). These antibodies play an important role in helping the body fight infection and maintain immune function. This test can provide valuable insight into immune health and may be recommended when investigating recurrent infections, immune deficiencies, chronic inflammation or other conditions affecting the body's immune response.
- Immune Function & Antibody Assessment: Immunoglobulin G (IgG), Immunoglobulin M (IgM), Immunoglobulin A (IgA)
Our Coagulation Profile 1 blood test is a targeted panel designed to evaluate the body’s ability to form blood clots and detect potential bleeding or clotting disorders. This test measures prothrombin time (PT) activated partial thromboplastin time (APTT), and fibrinogen levels, providing essential information on the coagulation system’s function. It is ideal for pre-surgical screening, monitoring anticoagulant therapy, or investigating unexplained bleeding or bruising.
- Blood Clotting Assessment: Prothrombin Time (PT), Activated Partial Thromboplastin Time (APTT)
- Clotting Protein Assessment: Fibrinogen
Our Coagulation Profile 2 blood test is a comprehensive panel designed to evaluate the body's ability to form blood clots while also assessing overall blood health. This test measures prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen levels, and includes a Full Blood Count (FBC) with 5-part differential to provide a broader picture of clotting function and haematological health. It is ideal for pre-surgical screening, monitoring anticoagulant therapy, investigating unexplained bleeding or bruising, and assessing conditions that may affect blood clotting or blood cell production.
- Blood Health: Full Blood Count (FBC) with 5-Part Differential
- Blood Clotting Assessment: Prothrombin Time (PT), Activated Partial Thromboplastin Time (APTT)
- Clotting Protein Assessment: Fibrinogen
Our Mineral Screen Blood Test is a targeted assessment of essential minerals and trace elements that support overall health and wellbeing. This panel measures calcium, magnesium, zinc, iron, copper, chromium and manganese, providing insight into key mineral levels and potential imbalances. It may be useful for preventative health screening, assessing nutritional status, or investigating symptoms that could be linked to mineral deficiency or imbalance.
- Essential Minerals & Nutrients: Calcium, Magnesium, Zinc, Iron, Copper, Chromium, Manganese
Industrial Heavy Metal Screen is a comprehensive blood test designed to assess essential mineral levels while detecting exposure to potentially harmful heavy metals. This panel measures key nutrients such as iron, calcium, zinc, magnesium, copper, and manganese, alongside toxic elements including lead, mercury, cadmium, chromium, and aluminium. It provides valuable insight into nutritional status and environmental or occupational exposure, supporting early identification of imbalances or toxicity. Ideal for preventative health screening or monitoring at-risk individuals.
- Essential Minerals & Trace Elements: Calcium, Magnesium, Zinc, Iron, Copper, Chromium, Manganese
- Industrial Heavy Metals: Aluminium, Cadmium, Mercury, Lead
Our ULTIMATE “Tired All The Time” panel is a comprehensive blood test designed to uncover the underlying causes of persistent fatigue. It assesses full blood count (FBC), thyroid function (TSH, FT3, FT4), prolactin, vitamin B12, folate, ferritin, liver and kidney function (LFTs, RFTs), glucose, HbA1c, and CRP. This targeted panel helps identify nutritional deficiencies, hormonal imbalances, or metabolic issues, providing actionable insights to restore energy and overall well-being.
- Blood Health: Full Blood Count (FBC)
- Thyroid Function: Thyroid Stimulating Hormone (TSH), Free Triiodothyronine (FT3), Free Thyroxine (FT4)
- Vitamin & Nutritional Health: Vitamin B12, Folate, Ferritin
- Blood Sugar & Metabolic Health: Glucose, Glycated Haemoglobin (HbA1c)
- Inflammation Marker: C-Reactive Protein (CRP)
- Hormone Health: Prolactin
- Liver Function: Liver Function Tests (LFTs)
- Kidney Function: Renal Function Tests (RFTs)
Our ULTIMATE Performance panel is an extensive health and hormone assessment designed to optimise energy, fitness, and overall well-being. It evaluates full blood count (FBC), thyroid function (TSH, FT3, FT4), vitamins B12 and folate, iron profile, glucose control (HbA1c), sex and adrenal hormones (testosterone, free testosterone, oestradiol, SHBG, LH, FSH, DHEA-S, cortisol), kidney and liver function (RFTs, LFTs), electrolytes (magnesium, phosphate), lipid profile, and CRP. This comprehensive panel provides actionable insights for performance, recovery, and long-term health.
- Endocrine Health: Total Testosterone, Free Testosterone, Oestradiol, Sex Hormone Binding Globulin (SHBG), Luteinising Hormone (LH), Follicle Stimulating Hormone (FSH), Dehydroepiandrosterone Sulphate (DHEA-S), Cortisol
- Thyroid Function: Thyroid Stimulating Hormone (TSH), Free Triiodothyronine (FT3), Free Thyroxine (FT4)
- Blood Health: Full Blood Count (FBC)
- Vitamin & Nutritional Health: Vitamin B12, Folate, Magnesium, Phosphate, Iron Profile
- Blood Sugar & Metabolic Health: Glycated Haemoglobin (HbA1c)
- Heart Health & Cholesterol: Lipid Profile
- Inflammation Marker: C-Reactive Protein (CRP)
- Liver Function: Liver Function Tests (LFTs)
- Kidney Function: Renal Function Tests (RFTs)
Our ULTIMATE Longevity Check – Full Body MOT is a comprehensive health assessment designed for proactive, long-term wellness. This all-in-one panel evaluates blood count (FBC), lipid and iron profiles, ApoA/ApoB ratio, kidney and liver function (RFTs, LFTs), PSA, thyroid function (TSH, FT3, FT4, TPO/TGA), adrenal and sex hormones (cortisol, progesterone, FSH, LH, prolactin, SHBG, total, free, and bioavailable testosterone, DHEA-S, oestradiol), parathyroid hormone (PTH), glucose and insulin metabolism (HbA1c, HOMA-IR), electrolytes (magnesium, phosphate, calcium), vitamins (B12, D, folate), and markers of inflammation and tissue health (CRP, LDH, CK). This extensive panel provides actionable insights for longevity, disease prevention, and optimal health management.
- Blood Health: Full Blood Count (FBC)
- Heart Health & Cardiovascular Risk: Lipid Profile, Apolipoprotein A (ApoA), Apolipoprotein B (ApoB), ApoA:ApoB Ratio
- Blood Sugar & Metabolic Health: Glucose, Insulin, Glycated Haemoglobin (HbA1c), HOMA-IR Index
- Hormone & Adrenal Health: Total Testosterone, Free Testosterone, Bioavailable Testosterone, Oestradiol, Sex Hormone Binding Globulin (SHBG), Luteinising Hormone (LH), Follicle Stimulating Hormone (FSH), Progesterone, Prolactin, Dehydroepiandrosterone Sulphate (DHEA-S), Cortisol
- Thyroid Function & Autoimmune Thyroid Health: Thyroid Stimulating Hormone (TSH), Free Triiodothyronine (FT3), Free Thyroxine (FT4), Thyroid Peroxidase Antibodies (TPO), Thyroglobulin Antibodies (TGA)
- Vitamin & Nutritional Health: Vitamin B12, Vitamin D, Folate, Magnesium, Phosphate, Iron Profile
- Bone & Mineral Health: Calcium, Corrected Calcium, Parathyroid Hormone (PTH)
- Inflammation & Recovery Markers: C-Reactive Protein (CRP), Lactate Dehydrogenase (LDH), Creatine Kinase (CK)
- Liver Function: Liver Function Tests (LFTs)
- Kidney Function: Renal Function Tests (RFTs)
- Prostate Health: Prostate Specific Antigen (PSA)
Advanced Aesthetician & Registered Nurse
Marija is an Advanced Aesthetician and Registered Nurse with expertise in skin health, laser treatments and CoolSculpting. Combining her clinical background with advanced aesthetic training, she delivers personalised treatment plans tailored to each client's needs. As part of the original team at The Door W4, Marija is committed to helping clients achieve natural-looking results in a safe and professional environment.
Registered Nurse
Hallie is a Registered Nurse who supports the clinical team and helps oversee clinical standards and CQC compliance at The Door W4. With a background in Mental Health Nursing, she brings a compassionate, professional and patient-focused approach to her role. Hallie particularly enjoys assisting practitioners during treatments and working within the theatre environment, where her attention to detail and commitment to patient care make her a valued member of the team.
Expertise
At The Door W4, we pride ourselves on our team of highly skilled and award-winning practitioners, each bringing years of expertise in aesthetic and surgical treatments. We carefully select the best in their fields to ensure you receive exceptional care and outstanding results, all under one roof.
CQC Registered
We're also CQC registered. CQC Registration is an accreditation by the Care Quality Commission that assess and confirms a certain level of hygiene, operational setup (ie. room design and available facilities) and patient care. This is the sort of level of accreditation usually found in hospitals and medical centres, so you can rest assured that you'll be getting the highest quality of treatment here with us.
Location
We're incredibly easy to get to. Visit us in leafy Chiswick, moments from vibrant Chiswick High Road. Close to Heathrow Airport and just off the M4, we are outside the congestion charging zone and very easy to access from out of London. With ample parking on site, you can have someone take you home straight from your treatment.
Our comprehensive blood testing services are designed to provide clear insights into your health, helping you understand your body and make informed decisions about your wellbeing.
Speak with our experienced team for personalised guidance and we'll help you find the most appropriate test for your needs.
