Medichecks Liver & kidney

Mercury Blood Test

Measures mercury levels in your blood to help assess recent exposure, for example from seafood, your workplace or the environment. A single-marker test rather than a broad toxicology screen.

  • Doctor reviewed
Sample
Blood
Collection
In-store clinic or home nurse visit or venous draw at clinic
Results in
7 days
Biomarkers
1
Doctor reviewed
Yes
Tests for
  • Mercury - blood

Test specifications

Provider
Medichecks
Sample type
blood
Collection method
in-store clinic or home nurse visit or venous draw at clinic
Turnaround time
7 days
Biomarkers tested
1
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

1 biomarker as listed by Medichecks.

Trace elements

  • Mercury - blood

About this test

This test measures mercury in your blood, which reflects relatively recent exposure to this toxic heavy metal, for example through seafood consumption, workplace exposure or environmental contact. Mercury can affect the nervous system and kidneys, so measuring your level can help identify recent exposure and inform whether further investigation is worthwhile.

As a single-marker test, this sits toward the lower end for biomarker count among the liver and kidney tests we track, though its £89 price is well below the typical range for tests of a similar size in that group. We don't have named competing mercury blood tests logged to compare it against directly.

Convenience is the main weak point: it requires a venous blood draw at a clinic, with a home nurse visit as the only alternative to attending in person, and results take around seven days, longer than most other tests we cover. Every result comes with a doctor's comment.

Who is it for?

This test suits people concerned about recent mercury exposure, for example from eating a lot of seafood, working with mercury-containing materials, or another environmental source, and who want a quick check of their current blood level. Because blood mercury mainly reflects recent exposure, it's less suited to assessing longer-term or past exposure.

If you're concerned about ongoing or chronic exposure rather than a recent event, Medichecks also offers a Mercury Urine Test, which the provider positions as better suited to tracking longer-term mercury elimination through urine rather than recent blood levels.

How it works

The sample is a venous blood draw, taken at an in-store clinic or via a home nurse visit; there's no at-home finger-prick option for this test. Once it reaches the lab, it's analysed for mercury levels. Medichecks states a turnaround of around seven days, and a doctor adds a comment to your results.

Pros & cons

Pros

  • Priced well below the typical range for liver and kidney tests of similar size.
  • Home nurse visit available if you can't get to a clinic.
  • Doctor's comment included with every result.

Cons

  • No at-home finger-prick option; requires a clinic or nurse visit.
  • Turnaround of around seven days, longer than most other tests we cover.
  • Only reflects recent exposure, not longer-term mercury buildup.

Our editorial score

Compare Health Test Score Single-marker mercury blood test, clinic only
Editorial confidence: 10.0/10

A single marker, blood mercury, is measured by this £89 test to check for recent exposure to this toxic heavy metal. We don't have named peer tests in this comparison group, but its price sits well below the typical range for liver and kidney tests of similar size that we track. The main caveat is that it only reflects recent exposure, not longer-term buildup.

Score breakdown

  • Clarity and documentation 8.0/10

    The listing publishes a short description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical depth 6.1/10

    1 biomarkers, placing it in the 26th percentile of liver kidney tests we track.

  • Collection convenience 8.0/10

    A blood sample taken at home by a visiting nurse or phlebotomist; with a venous or clinic option as well; a home nurse visit is offered; results in around 7 days, slower than similar tests.

  • Results and follow-up 7.0/10

    Results are reviewed by a doctor; the provider does not describe the report format.

  • Trust signals 9.5/10

    Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.

  • Value for money 8.2/10

    £89.00 against a median of £135.00 for the 17 similarly sized liver kidney tests we track (-34%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

More in Liver & kidney

View all →
Medichecks

Kidney Blood Test

Low-cost, at-home kidney panel with top convenience score

Checks core kidney function markers including creatinine, eGFR, sodium and urea. Suits people wanting an early, at-home check on kidney health, especially with high blood pressure, diabetes or a family history of kidney disease.

  • At-home test
8.5 / 10
£39.00
Full review →
Forth

Kidney Function Blood Test Kit

Deep kidney panel priced in line with the market

A 10-marker at-home finger-prick test checking kidney function, including creatinine, eGFR and urea, alongside liver and protein markers, for a broad look at kidney and related organ health.

  • At-home test
8.3 / 10
£49.00
Full review →
Medichecks

Microalbumin Urine Test

Affordable kidney check, but needs a clinic visit

Checks for microalbumin, a protein in urine that can be an early sign of kidney damage, alongside creatinine to calculate the microalbumin:creatinine ratio. Useful if you have diabetes, high blood pressure or other kidney risk factors.

  • At-home test
8.3 / 10
£59.00
Full review →
Forth

Liver Function Home Blood Test Kit

Liver and kidney panel priced right at the market rate

A 10-marker at-home finger-prick test checking liver function, including ALT, ALP and GGT, alongside kidney and protein markers, for a broad look at liver and related organ health.

  • At-home test
8.2 / 10
£49.00
Full review →