What’s Included in a Full Blood Test? Answers for Curious Patients
Many people hear the phrase “full blood test” but don’t really know what it checks. At Marylebone Diagnostic Centre, we believe in clear, patient-friendly answers.
A full blood test isn’t just one test — it’s often a collection of important panels that together give a complete snapshot of your health.
Let’s break down exactly what you can expect, and why it’s one of the most booked services at our clinic.
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What’s Usually Included in a “Full Blood Test”?
At our Baker Street clinic, a comprehensive full blood test includes the following key areas:
1. Full Blood Count (FBC)
This test checks:
- Red blood cells (oxygen-carrying)
- White blood cells (immune response)
- Haemoglobin (anaemia marker)
- Platelets (clotting function)
Why it matters:
Low or high levels can point to infections, inflammation, anaemia, immune issues, or even early warning signs of chronic illness.
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2. Liver & Kidney Function Tests
- Liver Function Test (LFT)
- Urea & Electrolytes (U&Es)
- eGFR (Glomerular Filtration Rate)
Why it matters:
These detect signs of poor organ function, dehydration, medication toxicity, or conditions like fatty liver and kidney disease — even when symptoms are silent.
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3. Cholesterol & Lipid Profile
- Total cholesterol
- LDL (“bad” cholesterol)
- HDL (“good” cholesterol)
- Triglycerides
Why it matters:
Cholesterol levels are key to assessing heart disease risk — even in slim, active people.
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4. Blood Sugar & Diabetes Screen
- Glucose
- HbA1c (3-month average blood sugar)
Why it matters:
Helps detect or monitor diabetes and insulin resistance — a growing concern even in younger adults.
5. Thyroid Function
- TSH (Thyroid-Stimulating Hormone)
- Free T4
Why it matters:
Thyroid dysfunction can cause fatigue, weight changes, mood swings, hair thinning, and menstrual irregularities — all common but often misdiagnosed.
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6. Vitamin & Mineral Profile
- Vitamin D
- Vitamin B12
- Folate
- Iron & Ferritin
Why it matters:
These are essential for energy, immunity, concentration, and hormonal balance. Deficiencies are extremely common, especially in London’s indoor, urban lifestyle.
Bonus Panels We Offer in Full Screens:
Depending on your package, you may also receive:
- PSA (Prostate Screening)
- Inflammation Markers (ESR, CRP)
- Creatine Kinase (muscle health)
- LDH, Calcium, Phosphate
- D-Dimer & Lipoprotein a (Cardiac Risk)
Ask our team about the Marylebone Health Screening Profile or the Well Woman Profile – both include many of these tests and are tailored for men and women.
When Should I Get a Full Blood Test?
- If you feel tired all the time
- If you’re experiencing unexplained weight change, mood shifts, or poor concentration
- If you have a family history of diabetes, heart disease, or thyroid issues
- If you’re preparing for a new fitness or health programme
- As part of your annual health MOT
You don’t need to wait for symptoms to get tested. Prevention is always better than cure.
Book Your Full Blood Count Test Today!
Where to Book a Full Blood Test in Central London
Marylebone Diagnostic Centre is based on Baker Street, a short walk from:
- Harley Street
- Euston
- Kings Cross
- Paddington
- Mayfair
No GP referral needed
Same-day appointments available
Results in 24–48 hours
Trusted by professionals, families, and international visitors
FAQs – Full Blood Testing
Book Your Full Blood Test Today
Located in Marylebone, Central London
Same-day slots
No referral needed
Full results with clear interpretation
Book Now at Marylebone Diagnostic Centre