1,25-dihydroxyvitamin D (Calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
One of the most advanced health panels available, covering over 100 biomarkers. Designed for full-body analysis, early detection, and optimisation.
Turnaround time
1 week
Biomarkers count
104
Professional phlebotomist comes to you
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Visit our clinic for your test
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Home visits require at least 24 hours notice.
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The Advanced GP3 blood test is a highly comprehensive, multi-system health screening panel designed to assess nearly every major function of the body. It combines haematology, cardiovascular, metabolic, hormonal, immune, gastrointestinal, and cancer markers into a single, detailed analysis.
This test includes over 100 biomarkers, offering deep insights into organ function, inflammation, nutrient status, hormone balance, cardiovascular risk, and potential early disease indicators. It also includes urine and stool analysis, making it significantly more advanced than standard blood testing.
Haematology
Electrolytes & Kidney Function
Liver Function
Lipids & Cardiovascular
Inflammation
Diabetes & Metabolic
Iron Studies
Vitamins & Minerals
Bone & Hormonal Regulation
Thyroid
Pancreatic & Muscle
Uric & Metabolic
Immune System
Inflammatory & Metabolic Hormones
Antioxidants
This test is designed for people who want maximum clarity, not basic screening.
It allows detection of:
You should consider this test if you have:
This is not a basic test — it’s a full diagnostic overview.
This is one of the most complete health assessments available, designed for both prevention and optimisation.
We offer two testing options across the UK:
Clinic visit
Home visit (+£60)
Low levels may indicate deficiencies or reduced function:
Typical UK ranges:
Indicates stable and balanced physiological function.
Elevated markers may indicate risk:
Simple steps to get your results
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsFollow these guidelines for accurate results
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
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