Calcitonin
Private Calcitonin testing in London for £148, measuring one thyroid C-cell hormone marker with results expected in around 1 day.
Turnaround time
1 business day
Biomarkers count
1
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Overview of the Calcitonin Blood Test
The Calcitonin blood test measures calcitonin, a hormone produced primarily by the parafollicular C-cells of the thyroid gland.
The test assesses 1 specialist hormone marker: Calcitonin.
Calcitonin has a physiological relationship with Calcium and bone metabolism, although its most important clinical use is not routine calcium assessment.
In laboratory medicine, Calcitonin is principally used as a tumour marker for medullary thyroid carcinoma, commonly abbreviated to MTC.
Medullary thyroid carcinoma develops from the thyroid's C-cells.
Because these cells produce Calcitonin, MTC can cause substantial increases in blood Calcitonin concentrations.
The marker can therefore be used during investigation of suspected MTC and for monitoring after treatment.
Calcitonin can also be relevant in people with Multiple Endocrine Neoplasia type 2, or MEN2.
MEN2 is an inherited cancer syndrome associated with pathogenic RET gene variants and an increased risk of medullary thyroid carcinoma.
People with a strong family history of MTC or MEN2 usually require specialist endocrine and genetic assessment rather than isolated blood testing alone.
A raised Calcitonin result is not automatically diagnostic of medullary thyroid carcinoma.
Mild or moderate elevations can occur in other clinical circumstances, including kidney impairment, selected neuroendocrine conditions and other physiological or medication-related situations.
The significance depends on the concentration, sex-specific laboratory range, clinical context and whether the result persists on repeat testing.
Sample handling is particularly important for Calcitonin.
Specialist laboratories may require rapid processing and freezing of the specimen to preserve analytical stability.
What Does the Calcitonin Blood Test Check?
The test measures Calcitonin produced by thyroid C-cells and can provide important information during investigation or monitoring of medullary thyroid carcinoma. This test measures 1 specialist biomarker.
Calcitonin
Measures a hormone produced primarily by thyroid C-cells and used particularly during assessment and monitoring of medullary thyroid carcinoma and selected MEN2-related investigations.
Who May Benefit From the Calcitonin Blood Test?
Calcitonin is a specialist thyroid tumour marker and is most useful where there is a clear endocrine or oncological reason for testing.
People undergoing investigation for suspected medullary thyroid carcinoma - Calcitonin is the principal circulating tumour marker associated with MTC.
People with a thyroid nodule where MTC is a clinical concern - Specialist assessment may include Calcitonin depending on the clinical circumstances.
People previously treated for medullary thyroid carcinoma - Serial Calcitonin can provide important information during follow-up.
People with a family history of medullary thyroid carcinoma - Specialist endocrine and genetic assessment may include Calcitonin.
People with known MEN2 - Calcitonin can form part of structured surveillance for medullary thyroid carcinoma.
People with a pathogenic RET gene variant - Management usually involves specialist endocrine care and can include Calcitonin monitoring.
People with a previous unexplained raised Calcitonin result - Repeat testing can help establish whether the elevation persists.
People specifically advised to measure Calcitonin by an endocrinologist - The test is most informative within a defined thyroid or endocrine investigation.
How to Prepare
Calcitonin samples can require rapid processing and appropriate temperature handling.
For this reason, collection may need to be arranged at a site capable of meeting the laboratory's sample-processing requirements.
Do not alter prescribed medication without specific clinical advice.
Symptoms and Reasons to Consider the Calcitonin BloodTest
Calcitonin testing is usually prompted by thyroid or genetic findings rather than a specific symptom pattern.
A thyroid nodule under specialist investigation - Calcitonin may be considered where medullary thyroid carcinoma is part of the differential diagnosis.
A neck lump or thyroid mass - Structural thyroid abnormalities require appropriate imaging and clinical assessment.
A family history of medullary thyroid carcinoma - Familial cases can occur as part of inherited RET-related disease.
Known MEN2 - People with MEN2 require specialist surveillance because of the risk of medullary thyroid carcinoma.
A previous raised Calcitonin result - Repeat measurement can confirm whether the elevation persists or changes.
Monitoring after MTC treatment - Calcitonin trends can provide important information about residual or recurrent disease.
An abnormal RET genetic result - Calcitonin may form part of specialist management.
Persistent unexplained thyroid findings - The marker may be requested selectively by an endocrinologist or thyroid specialist.
Calcitonin should not be used as a general screening marker for all forms of thyroid cancer.
Most thyroid cancers arise from follicular cells rather than C-cells and do not produce Calcitonin.
A thyroid lump, rapidly enlarging neck mass, swallowing difficulty, persistent hoarseness or concerning imaging requires appropriate specialist assessment regardless of Calcitonin level.
How to Book Your Calcitonin Blood Test in London
The Calcitonin test can be booked privately for specialist assessment of this thyroid C-cell hormone.
Choose the Calcitonin
Select the individual Calcitonin blood test online.
Select your sample collection option
Choose a collection location suitable for the laboratory's specialist handling requirements.
Attend your appointment
A trained healthcare professional collects the required venous blood sample and arranges the necessary specimen processing.
Laboratory analysis
Your serum undergoes specialist measurement of Calcitonin.
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside thyroid imaging, RET genetics and previous Calcitonin measurements where appropriate.
When Will I Receive My Results?
The current specialist laboratory turnaround for Calcitonin is approximately 1 day after laboratory receipt when processed through the relevant London laboratory pathway.
Calcitonin requires specific sample handling, including timely transport and processing.
The sample undergoes specialist hormone analysis, quality-control procedures and result authorisation.
The collection and transport requirements can be as important as the analytical turnaround itself.
Where a result requires confirmation or further endocrine investigation, the overall clinical process can take longer.
Understanding Your Results
Calcitonin is interpreted against the laboratory's validated reference interval, which can differ according to sex and analytical method.
A raised Calcitonin result can raise concern about increased C-cell activity.
Marked elevations in an appropriate clinical setting can be strongly associated with medullary thyroid carcinoma.
However, mild or moderate elevations are less specific.
Kidney disease, medications, other neuroendocrine conditions and biological variation can influence the result.
Repeat testing or further specialist investigation may therefore be required.
In somebody who has already been treated for medullary thyroid carcinoma, the trend over time can be particularly important.
Persistently detectable or rising Calcitonin can require further evaluation for residual or recurrent disease.
A result within range reduces concern about significant Calcitonin secretion but should not be interpreted as a general exclusion of all thyroid cancers.
Why Book With London Blood Tests?
London Blood Tests provides private access to specialist Calcitonin measurement for thyroid C-cell and medullary thyroid carcinoma assessment.
Measures a specific thyroid C-cell hormone - Calcitonin is produced predominantly by parafollicular C-cells.
Principal tumour marker for MTC - Calcitonin is particularly important in medullary thyroid carcinoma.
Relevant to MEN2 assessment - MEN2 and inherited RET variants can increase MTC risk.
Useful for post-treatment monitoring - Serial Calcitonin can help assess biochemical response after MTC treatment.
Specialist sample handling - Collection can be arranged according to the assay's handling requirements.
Specialist laboratory analysis - Samples undergo dedicated endocrine testing.
Professional blood collection - Appropriate clinic collection can be arranged.
Clear pricing - The Calcitonin test costs £148.
Private Calcitonin Blood Test in London
London Blood Tests provides private Calcitonin testing for people requiring specialist thyroid C-cell assessment.
The test costs £148 and measures 1 specialist biomarker.
The relevant London laboratory pathway can report results in approximately 1 day after laboratory receipt when specimen requirements are met.
Calcitonin is principally used for medullary thyroid carcinoma and MEN2-related assessment rather than routine thyroid-function screening.