Calcium Test

A single blood test that measures your calcium level via a venous draw at a clinic or with a home nurse visit, useful if you have symptoms of high or low calcium.

Sample
Blood
Collection
Venous draw at clinic or nurse visit
Results in
1 day
Biomarkers
1
Tests for
  • Calcium

Test specifications

Provider
Better2Know
Sample type
blood
Collection method
venous draw at clinic or nurse visit
Turnaround time
1 day
Biomarkers tested
1
At-home test
No
Doctor reviewed
No
Gender focus
Both

What's tested

1 biomarker as listed by Better2Know.

Other

  • Calcium

About this test

Calcium is the sole marker in this test. It matters because levels that run too high or too low can signal problems with your parathyroid glands, kidneys, vitamin D status or diet, and persistent imbalance is linked to conditions such as osteoporosis if left unaddressed. A single-marker test like this suits someone who already has a specific reason to check calcium, not someone wanting a wider health screen.

Better2Know sells the same marker two ways. This version needs a venous blood draw, either at a clinic or from a nurse who visits you, and costs £135. The alternative Calcium Home Test Kit uses a finger-prick sample you collect yourself and post to the lab for £40, with results back on the same timescale. The clinical information you get is identical either way, so the extra cost here buys a clinician-collected sample rather than extra insight.

The test scores poorly on value for money because £135 sits well above the typical cost of the vitamins and minerals tests we track, and only moderately on collection convenience, since a venous draw needs either a clinic visit or a booked nurse. It scores the same as the home kit on clinical depth and on results and follow-up: one marker, and no doctor review of the result as standard, though Better2Know says it can arrange a doctor's consultation after an abnormal reading. The provider is CQC registered, holds a 4.2 Trustpilot score from 775 reviews, and has been trading since 2008.

Who is it for?

This route suits you if you would rather have a trained clinician take your blood than collect a finger-prick sample yourself, or if a home nurse visit fits your schedule better than posting a sample. It gives you nothing extra over the cheaper option: the marker tested and the turnaround are the same.

If cost matters more than how the sample is collected, Better2Know's own Calcium Home Test Kit reports the identical calcium marker for £40 using an at-home finger-prick. Whichever you choose, see a GP if your result comes back abnormal, to discuss what it means for you.

How it works

A trained clinician takes a venous blood sample from your arm, either at a Better2Know clinic or during a home nurse visit. Your sample is sent to the laboratory for calcium analysis, with results typically available the next working day through Better2Know's secure online patient area. Results are not reviewed by a doctor as standard, though Better2Know says a doctor's consultation can be arranged if your calcium level comes back abnormal.

Pros & cons

Pros

  • Blood is drawn by a trained clinician rather than self-collected.
  • A home nurse visit is offered if you cannot get to a clinic.
  • Results are typically available the next working day.
  • Same calcium marker and turnaround as Better2Know's cheaper home kit.

Cons

  • Costs £95 more than Better2Know's own finger-prick version of the same test.
  • Covers only one marker.
  • Results are not reviewed by a doctor as standard.

Our editorial score

Compare Health Test Score £95 pricier than Better2Know's own home calcium kit
Editorial confidence: 9.0/10

This test measures calcium from a venous blood sample taken at a clinic, with a home nurse visit also available if you would rather not travel. At £135 it costs £95 more than Better2Know's own finger-prick Calcium Home Test Kit, which reports the identical marker. Choose this route only if you specifically want a clinician to take the sample, since results are not reviewed by a doctor as standard either way.

Score breakdown

  • Clarity and documentation 9.0/10

    The listing publishes a detailed 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 6.3/10

    1 biomarkers, placing it in the 31st percentile of vitamins tests we track.

  • Collection convenience 6.0/10

    Requires a venous draw at a clinic; a home nurse visit is offered; results in around 1 days, well ahead of the vitamins norm of 3.5.

  • Results and follow-up 3.0/10

    Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.

  • Trust signals 6.5/10

    Trustpilot 4.2 from 775 reviews; CQC registered; trading 18+ years.

  • Value for money 3.6/10

    £135.00 against a median of £85.00 for the 73 similarly sized vitamins tests we track (+59%).

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

Compare with similar tests

This test belongs to our Calcium test comparison group. See how it stacks up against equivalent tests from other providers.

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Calcium Home Test Kit

£95 cheaper than Better2Know's clinic calcium test

A single finger-prick blood test that measures your calcium level, useful if you have symptoms of high or low calcium or want a quick check on your dietary intake.

  • At-home test
7.4 / 10