Adult Blood Tests in Central London: What We Can Check in One Visit
Reviewed by Dr Lauren Holland • Marylebone Diagnostic Centre
Results within 24 – 42 hours. Westminster residents receive 20% off.
Many adults in London want a fast, reliable way to check their health in one visit. Whether you feel tired, stressed, low in energy, gaining weight, losing sleep, or simply want reassurance, a single blood test appointment can reveal a detailed picture of your health. At Marylebone Diagnostic Centre, we offer comprehensive adult blood tests designed to assess vitamins, hormones, metabolism, organ health, infection markers and cardiovascular risk — all under one roof in central London.
Adult blood tests are useful for both symptom-driven checks and preventative health screening. They help detect silent problems early and support long-term wellbeing. This blog explains what we can check in one visit, why these markers matter, and which panels are recommended for routine or advanced screening.
What Can an Adult Blood Test Check?
A single appointment at MDC can assess multiple areas of your health:
1. Full Blood Count (FBC)
Checks red cells, white cells and platelets.
Helps detect anaemia, infection, inflammation and immune activity.
2. Vitamin D
Very low in London due to limited sunlight.
Affects energy, immunity, mood, joint pain and metabolic health.
3. Vitamin B12
Supports nerves, memory, concentration and red cell production.
4. Ferritin (Iron Stores)
Low iron is a major cause of fatigue, breathlessness, dizziness and hair thinning.
5. Thyroid Function (TSH, FT4, FT3)
Regulates metabolism, energy, weight control, mood and body temperature.
6. HbA1c (Long-Term Blood Sugar)
Checks for diabetes, prediabetes and metabolic instability.
7. Lipid Profile (Cholesterol & Triglycerides)
Assesses cardiovascular risk and long-term metabolic health.
8. Liver Function
Detects inflammation, fatty liver changes or alcohol-related issues.
9. Kidney Function
Important for hydration, detoxification and blood pressure regulation.
10. CRP (Inflammation Marker)
Detects inflammatory or infection-related processes.
11. Hormone Tests (optional)
Women: oestrogen, progesterone, FSH, LH.
Men: testosterone, SHBG, prolactin.
These are helpful for fatigue, low libido, cycle changes or fertility planning.
Symptoms That Suggest You Need an Adult Blood Test
- Persistent fatigue
- Low energy
- Unexplained weight change
- Hair loss
- Brain fog
- Low mood
- Poor sleep
- Frequent infections
- Chest tightness
- Joint pain
- Bloating
- Night sweats
- Breathlessness
- Dry skin
- Menstrual changes
If symptoms persist for more than two weeks, a blood test is recommended.
Why Adults in London Benefit from Regular Blood Testing
London lifestyle contributes to:
- stress
- poor sleep
- nutrient deficiencies
- long working hours
- limited sunlight exposure
- irregular meals
- alcohol intake
- sedentary patterns
These factors affect metabolic, hormonal and cardiovascular health.
Early detection improves long-term outcomes.
MDC Profiles for Adult Health Checks
At Marylebone Diagnostic Centre, these profiles offer the most complete view:
Table: What We Can Check in One Visit
| Test | What It Shows | Common Symptoms |
| Vitamins | Vitamin D, B12, folate | Fatigue, low mood, weakness |
| Minerals | Iron, ferritin, magnesium | Hair loss, dizziness, cramps |
| Thyroid | TSH, FT4, FT3 | Weight changes, cold feeling |
| Metabolic | HbA1c | Sugar crashes, cravings |
| Liver | ALT, AST, GGT | Nausea, bloating, alcohol sensitivity |
| Kidneys | Creatinine, eGFR | Swelling, fatigue |
| Inflammation | CRP | Pain, fever, infection |
| Blood cells | FBC | Anaemia, infection |
| Hormones | Testosterone, oestrogen | Low libido, cycle changes |
FAQs
Book Your Adult Health Check at Marylebone Diagnostic Centre
Marylebone Diagnostic Centre
73 Baker Street, London W1U 6RD
Tel: +44 7495 970109
Open Monday–Saturday, 08:00–16:00
Fast, private and confidential testing with results in 24–42 hours.
Quick Links
- Cardiac Profile
- HbA1c Test
- Full Lipid Panel
- Fatigue and Energy Profile
- Kidney Function Test
- Electrolytes Test
- Liver Function Test
- Thyroid Function Test
- Magnesium Test
- Full Blood Count
- Urinalysis & Culture
- Book an Appointment
- ECG Testing
- Wellness Profile
- Pancreatic Profile
- Women’s Health Tests
- Female Fertility Hormone Panel
- HIV 4th Generation Test
- Advanced Sexual Health Panel
- Sexual Health Tests
- Syphilis Test
- Hepatitis B & C Tests
- Urine Analysis
