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Organ Function

Complete Organ Function Screen

17-marker comprehensive organ screen covering blood count, liver, kidney, and calcium markers in a single home collection.

17 biomarkers Home kit available FBC, liver, kidney, and calcium Results in 3 to 5 working days
4.8 (214 reviews)
£59.00

or 4 interest-free payments of £14.75 with Klarna

Collection method Self-collected fingerstick
Quantity 1 kit
1
UKAS accredited ISO 15189 laboratory
UK GDPR secure Barcoded, anonymous sample
GMC-reviewed Physician-signed report
Complete Organ Function Screen
UKAS ISO 15189
Accredited
Product description

A 17-marker comprehensive organ function screen combining full blood count, liver function, kidney function, and bone markers.

The Complete Organ Function Screen combines the most clinically useful markers across four organ systems into a single, comprehensive assessment.

Full blood count (6 parameters): haemoglobin, RBC count, WBC count, platelet count, MCV, and haematocrit — screening for anaemia, infection, and haematological conditions.

Liver function (6 markers): ALT, AST, GGT, alkaline phosphatase, bilirubin, and albumin — a comprehensive picture of hepatocyte health, biliary function, and synthetic capacity.

Kidney function (4 markers): creatinine, eGFR, urea, and uric acid — assessing renal filtration, nitrogen clearance, and metabolic risk.

Bone and calcium metabolism (2 markers): corrected calcium and alkaline phosphatase (ALP contributes to both liver and bone assessment) — screening for calcium abnormalities and bone disease.

This panel is suitable as a comprehensive annual baseline or for people who want to assess multiple organ systems simultaneously without running multiple separate tests. Home fingerstick kit available. GMC-physician reviewed results within 3 to 5 working days.

Reviewed by the Trupoint medical board · Last updated May 2026
What we measure

Every biomarker, explained

Understand what each marker measures, why it matters, and what the science says — not just a list of numbers.

17
Biomarkers in this panel
4
Physiological systems covered
1
Sample
24 - 48
Hours
1 MARKERS

Full Blood Count (6 parameters)

Core haematological screen for anaemia, immune status, clotting capacity, and red cell morphology.

1 MARKERS

Liver Function (6 markers)

Comprehensive liver assessment covering hepatocyte damage, biliary function, and synthetic capacity.

1 MARKERS

Kidney Function (4 markers)

Renal filtration, nitrogen clearance, and metabolic risk assessment.

1 MARKERS

Bone and Calcium

Albumin-adjusted total calcium; screens for hypo- and hypercalcaemia and their metabolic causes.

Is this right for me?

Who this test is for

This panel is designed for adults who want a comprehensive, evidence-based picture of their metabolic health — not a GP referral panel.

Adults Wanting A Comprehensive Annual Organ

Adults wanting a comprehensive annual organ function baseline

Those On Medications Requiring Multi-Organ Monitoring

Those on medications requiring multi-organ monitoring (statins, methotrexate, NSAIDs)

People With Fatigue

People with fatigue or non-specific symptoms wanting a broad screen

Those With A Family History Of

Those with a family history of liver, kidney, or bone disease wanting routine monitoring

Not appropriate for Those needing cardiovascular, hormonal, or nutritional markers alongside organ function. Those requiring thyroid or inflammatory markers in the same assessment
Transparency

Test limitations

This panel provides a broad screen across four organ systems but is not exhaustive in any one domain. Liver assessment does not include viral hepatitis serology or clotting studies. Kidney assessment does not include urinary protein (ACR or PCR), electrolytes, or phosphate. Full blood count does not include a WBC differential or reticulocyte count. Bone assessment uses corrected calcium only — PTH, vitamin D, and bone resorption markers are not included. Mildly abnormal values in the context of acute illness may not reflect underlying chronic organ disease; retesting after recovery is advisable. Please discuss significantly abnormal results with your GP promptly.

Reviewed annually by our medical advisory board.
The process

How it works

From order to physician-reviewed report in as little as three working days.

Day 0

Order online and receive your home collection kit within 2 to 3 working days

Day 1

Collect your sample at any time — no fasting required (though morning collection is preferred)

Day 2

Return via prepaid Royal Mail envelope

Day 3

Physician-reviewed results on your dashboard within 3 to 5 working days

Sample collection

Choose how you collect

Three options designed to fit your schedule, location, and preference — all producing a laboratory-standard sample.

Eligibility

Adults 18+ in mainland UK. Not suitable if you have had a transfusion in the last 3 months.

Availability

Order anytime; kit dispatched within 24 hours Mon–Fri.

Turnaround

Allow 24–48 hours for sample transit on top of lab processing time.

Why Trupoint

Built on rigorous science and UK regulatory standards

Every test is processed in a UKAS ISO 15189-accredited laboratory, overseen by GMC-registered physicians, and governed by UK GDPR. No overseas processing, no offshore data.

ISO 15189 accredited laboratory
CQC-registered collection service
GMC-registered physician review
GDPR-compliant data handling
MHRA-compliant sample processing
2.4M+
tests processed
99.4%
on-time results
11 yrs
average lab tenure
Before your test

Preparation instructions

Follow these guidelines to ensure accurate, reproducible results. Most markers are sensitive to recent food, exercise, and sleep.

Please do

  • Collect in the morning before taking any medications or supplements
  • Stay well hydrated before collection
  • Note all regular medications in your Trupoint Health profile

Please avoid

  • Do not exercise intensively before collection (raises AST, ALT, and creatinine acutely)
  • Do not collect during an acute illness — results may reflect the acute response rather than baseline
  • Do not take calcium supplements on the morning of collection
Support

Frequently asked questions

Can't find your answer? Our clinical support team is available Monday to Friday, 9am–5pm.

Contact support

Frequently Asked Questions

What is included in this panel that a standard GP blood check might miss?

A standard NHS blood check at a GP practice often includes a core set of markers determined by the clinical indication. This comprehensive organ function screen systematically covers six liver markers (including GGT, which is often omitted), four kidney markers (including uric acid, which is rarely requested unless gout is suspected), and corrected calcium alongside the standard FBC. The combination of all these in a single proactive assessment — rather than waiting for symptoms to prompt individual tests — is the key difference. The physician narrative accompanying your results also provides interpretation across all markers together, rather than just flagging individual abnormal values.

Can I use this panel to monitor medication safety?

Yes, particularly for medications that affect the liver or kidneys. Statins (liver monitoring — ALT, AST), NSAIDs (kidney monitoring — creatinine, eGFR), methotrexate (liver — full LFT), ACE inhibitors (kidney — creatinine, eGFR, potassium though electrolytes not included here), and chemotherapy agents (full blood count, liver, kidney) are all monitored using markers in this panel. If you are on long-term medications requiring routine monitoring and want to supplement NHS monitoring with private testing, this panel provides a comprehensive multi-system check in a single home collection.

What does corrected calcium mean and why not just total calcium?

Total calcium in the blood is partly bound to albumin (a blood protein). When albumin is low (e.g. in malnutrition, liver disease, or inflammation), total calcium appears artificially low even if free (ionised) calcium is normal. Corrected calcium adjusts total calcium for the albumin level, giving a more accurate picture of the biologically active calcium. This correction is important because clinical decisions about hypocalcaemia and hypercalcaemia should be based on true calcium availability. Corrected calcium is the standard reported in most clinical settings. If there is clinical concern about accuracy (e.g. in critical illness), ionised calcium should be measured directly.

How often should I run this comprehensive screen?

Annual testing is appropriate for most adults over 35 as a proactive organ health baseline. For those on long-term medications requiring monitoring, frequency is guided by prescribing guidelines — typically every 3 to 12 months depending on the drug and organ system affected. For those with identified abnormalities (e.g. mildly elevated ALT or borderline eGFR), the physician report will recommend a specific retesting interval. For healthy younger adults with no risk factors, testing every 2 to 3 years as part of a broader health MOT may be more appropriate.