NHS vs Private Blood Test UK: What's the Difference? | TrueVitals
Comparison

NHS vs Private
Blood Test: What's Actually Different?

Your GP can order blood tests through the NHS, and for acute concerns, that system works. But for proactive health monitoring, the gap between what the NHS checks and what a comprehensive private test checks is where most preventable health issues hide undetected. An NHS blood test typically checks 10 to 20 biomarkers. Our Ultimate panel checks 114.

The NHS Panel

What does an NHS blood test actually check?

When your GP orders a "routine blood test" or "full blood count," the panel typically includes around 10 to 20 markers. It is designed to screen for disease, not to optimise health.

  • Full blood count (red cells, white cells, platelets)
  • Basic liver function (ALT, ALP, bilirubin)
  • Kidney function (creatinine, eGFR, urea)
  • Blood glucose or HbA1c (if diabetes suspected)
  • Basic cholesterol (total, HDL, LDL)
  • Thyroid: TSH only, if specifically requested

If your results fall within the NHS reference range, you are told everything is "normal" and sent on your way. The problem is that "normal" and "optimal" are not the same thing. NHS reference ranges are built from population averages, including people who are already unwell. A ferritin level of 15 is technically "normal" on the NHS scale but is associated with fatigue, brain fog, and hair loss. We explain the difference between normal and optimal ranges here.

Doctor and patient in consultation
The Private Panel

What does a comprehensive private blood test check?

A comprehensive private blood test goes far deeper. Our Ultimate panel tests 114 biomarkers across 12 health systems, making it the most comprehensive private blood test available in the UK at any price point. No other provider matches it. For those who want to go even further, our Signature panel covers 200+ biomarkers. Here is what the NHS does not routinely check.

Hormones

Testosterone, oestradiol, SHBG, DHEA-S, cortisol, prolactin. Your GP will rarely test these unless you present with a specific complaint. Private testing lets you see the full hormonal picture.

Full Thyroid Panel

TSH, Free T3, Free T4, thyroid antibodies. The NHS tests TSH alone. That misses subclinical thyroid issues and autoimmune thyroid conditions entirely. See our full thyroid breakdown.

Advanced Cardiovascular

ApoB, Lp(a), remnant cholesterol, triglyceride/HDL ratio. Standard NHS cholesterol panels miss the markers cardiologists actually use to assess risk. Advanced lipid and heart health testing.

Inflammation

hs-CRP and ESR. Chronic low-grade inflammation drives heart disease, autoimmune conditions, and accelerated ageing. Not included in routine NHS tests.

Tumour Markers

PSA for men, CA-125 and CA 15-3 for women. Not screened routinely on the NHS until much later in life, if at all.

Vitamins & Minerals

B12, vitamin D, folate, ferritin, zinc, magnesium. The NHS will test these individually if you push hard enough, but they are not part of a standard panel.

See the full list of biomarkers we test across all panels →

At a Glance

The comparison at a glance

A side-by-side comparison of what you get from an NHS blood test versus a comprehensive private blood test with TrueVitals.

Feature NHS Blood Test TrueVitals Private Blood Test
Biomarkers tested 10 to 20 Up to 114
Hormones Rarely, only on request Full panel included
Thyroid TSH only TSH + Free T3 + Free T4 + antibodies
Cardiovascular Basic cholesterol ApoB, Lp(a), remnant cholesterol
Vitamins & minerals Only if GP suspects deficiency B12, D, folate, ferritin, zinc, magnesium
Tumour markers Not routine PSA (men), CA-125 / CA 15-3 (women)
Collection method Venous at GP surgery Venous at 350+ clinics or at home
Wait for appointment Days to weeks Book same week
Wait for results 1 to 4 weeks, often by phone 48 hours, full written report
Report format "Everything looks normal" by phone 30+ page personalised report
Cost Free From £269
Woman reviewing her blood test results on a laptop
The Report

The report difference

This is where private testing pulls furthest ahead. An NHS result typically arrives as a phone call from the receptionist: "Your results are back and everything is normal." Or a short letter listing numbers without context.

A TrueVitals report runs to 30+ pages. Every biomarker is explained in plain English. Abnormal results are flagged with context about what they mean for you specifically. You receive personalised recommendations including calorie and protein targets, supplement suggestions, and lifestyle adjustments based on your actual numbers.

The Real Question

Is a private blood test worth the money?

The NHS is free, and for many people that is reason enough. But consider what the NHS panel does not check.

If your ferritin is 15 (technically "normal" but causing your fatigue), the NHS test will not flag it

If your Free T3 is low (your thyroid is underperforming despite a "normal" TSH), it will not appear

If your ApoB is elevated (your real cardiovascular risk is high despite "normal" cholesterol), nobody will know

If your testosterone is declining (causing low mood and poor sleep), it will not be investigated unless you specifically ask

A private blood test does not replace the NHS. It fills the gap between "not currently dying" and "actually thriving." For most people, an annual comprehensive test provides the data to make genuinely informed decisions about their health.

Our most popular panel is the Ultimate (114 biomarkers) at £349. No other provider in the UK offers this level of depth at any price. The Advanced panel (74 biomarkers) starts at £269 and still covers more than most competitors' top panels. For those who want the absolute deepest picture, our Signature panel covers 200+ biomarkers at £799. Compare all panels here.

Getting Started

How it works

Getting a private blood test with TrueVitals takes four steps.

1

Choose your panel

Not sure which one? Take our 2-minute quiz for a personalised recommendation.

2

Book your appointment

Choose from 103+ clinics across the UK or add a home visit for £39.

3

Give your sample

A trained phlebotomist collects a venous blood sample. No finger pricks, no self-collection.

4

Receive your report

Your personalised report is delivered within 48 hours, with every result explained in plain English.

Read the full process here →

Professional phlebotomist collecting a venous blood sample

Want to compare TrueVitals to other private providers? See our honest comparison of UK blood test companies, or jump to a specific comparison: Medichecks · Thriva · Randox · Lola Health · Forth

FAQ

Common questions

Can I get a full blood test on the NHS?
You can request blood tests through your GP, but the NHS panel is limited to basic screening markers. A comprehensive panel testing hormones, full thyroid, advanced cardiovascular markers, and vitamins is not available through the NHS as a standard request. Your GP may refer you for specific tests if they suspect a condition, but proactive comprehensive testing is not part of standard NHS care.
Do I still need to see my GP if I get a private blood test?
Yes. A private blood test provides information, not diagnosis. If your results flag anything concerning, we recommend discussing them with your GP. Many customers share their TrueVitals report with their GP to inform the conversation and request further investigation where needed.
Is a private blood test more accurate than an NHS test?
Both use the same venous blood collection method and UKAS-accredited laboratories. The difference is not accuracy but scope: a private test simply checks more markers across more health systems. Read about our lab accreditation and quality standards.
How much does a private blood test cost compared to the NHS?
NHS blood tests are free at the point of use. TrueVitals panels range from £269 (74 biomarkers) to £799 (200+ biomarkers), with the most popular Ultimate panel at £349 for 114 biomarkers. Clinic phlebotomy starts from £19 extra, or home visits for £39. See our full pricing breakdown.
What does an NHS blood test check?
A standard NHS blood test typically checks 10 to 20 markers including full blood count, basic liver function, kidney function, blood glucose or HbA1c, and basic cholesterol. It does not routinely include hormones, full thyroid panels (Free T3, Free T4, antibodies), vitamins, or advanced cardiovascular markers like ApoB or Lp(a).

Ready to see what your NHS test is missing?

Compare our panels, see a sample report, or take the quiz to find the right level of testing for your goals.