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...
Basic Screen
86.00
This screen provides a focused overview of organ function, heart risk, and blood health. It is ideal for routine general health monitoring.
Turnaround time
2-3 days
Biomarkers count
37
Same-Day Appointments
UKAS Accredited Labs
Book your test
Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Basic Screen
What is a Basic Screen?
The Basic Screen is a practical blood test panel designed to assess core areas of health including blood count, kidney function, liver health, cholesterol balance, inflammation, and blood sugar.
This profile includes:
• Full Blood Count (FBC)
• Kidney markers: Creatinine, eGFR, Sodium, Potassium, Chloride, Urea, Phosphate
• Cholesterol profile: Total Cholesterol, LDL, HDL, Triglycerides, Cholesterol ratios
• High-sensitivity C-Reactive Protein (hsCRP)
• Liver markers: ALT, AST, ALP, GGT, Bilirubin, Albumin
• Glucose
It provides a clear overview of how your major organs and metabolic systems are functioning.
Why do I need a Basic Screen?
Many common health conditions develop gradually without obvious symptoms. This test helps detect early changes in liver, kidney, heart, and metabolic health.
Reasons for testing include:
• Routine health check-up
• Persistent fatigue
• Monitoring cholesterol or blood sugar
• Assessing liver and kidney function
• Investigating general unwell feeling
Symptoms that often prompt testing include:
• Tiredness
• Dizziness
• Headaches
• Poor concentration
• Weight changes
Benefits of the test
1. Assesses core organ function
2. Detects early kidney and liver stress
3. Evaluates cardiovascular risk
4. Screens for inflammation
5. Checks blood sugar balance
6. Evaluates blood cell health
7. Suitable for routine monitoring
8. Provides a strong baseline for future comparison
Expanded benefit explanation
This screen focuses on essential health markers that often change before symptoms appear, making it useful for early detection and prevention.
Step-by-step — How testing works
We offer two UK-wide testing options:
Clinic testing
• Choose nearest UK clinic
• Blood sample collected
• Laboratory analysis performed
• Results securely returned
Home visit (+£60)
• Phlebotomist visits you
• Blood sample collected safely
• Sample sent to lab
• Results delivered confidentially
Your results explained
Low levels
May indicate anemia, low glucose, or electrolyte imbalance.
Normal levels
Organ and metabolic function appear stable.
High levels
May indicate inflammation, liver stress, kidney impairment, or cardiovascular risk.
How It Works
Simple steps to get your results
1
Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
2
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
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Get Your Results
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 UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
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 & Hydration
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.
Medications & Supplements
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.
Hormones & Menstrual Cycle
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.
Frequently Asked Questions
Yes, fasting is recommended for glucose and cholesterol accuracy.
Yes, through liver function tests.
Yes, via creatinine, eGFR, and electrolytes.
Yes, ideal for routine checks.
Inflammation linked to heart risk.
Yes, through glucose testing.
Yes, ideal for routine checks.
Yes, a full lipid profile is included.
They reflect hydration, kidney function, and mineral balance.
Yes, for prevention and baseline monitoring.
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