Holo-TC (Holo-Transcobalamin)
Acquire test
Visit your pharmacy and ask about CaboCheck.
With each test, you will receive an information sheet with your personal test QR code (CaboCheck-ID), through which you can retrieve the test result.
Test execution on-site or at a later date
Come by and let us prick your finger. We take blood from your fingertip and send your blood sample to a medical specialist laboratory at CaboLab or analyze it directly on site at CaboPoc. Please drink enough water beforehand (300ml).
Quick and reliable results
You will receive an email after a few minutes (CaboPoc) or a few days (CaboLab) and can collect and discuss your results with us or access them online yourself. The results are displayed with a traffic light. If the traffic light is red or yellow, you can, if you wish, share the results with us. We will then review the results and advise you on what you should ideally do next.
CaboCheck Benefits
Professionelle Probenentnahme vor Ort in der Apotheke
Einfache Kapillarblutentnahme innerhalb von 2 Minuten
Auswertung durch medizinisches Facharztlabor
Labor-Ergebnisse als PDF oder online
Fragen und Antworten zu Holotranscobalamin
What is the respective laboratory value?
Holo-Transcobalamin (Holo-TC) is the biologically active form of vitamin B12 that is bound to the transport protein Transcobalamin. The laboratory value measures the concentration of Holo-TC in the blood and provides early indications of a functional vitamin B12 deficiency.
For whom is such a test to be considered?
A Holo-TC test is recommended for: People with non-specific symptoms such as fatigue, memory disorders or neurological complaints Patients with a normal or borderline vitamin B12 level, in whom a deficiency is suspected Persons with risk factors for vitamin B12 deficiency (e.g. vegans, elderly people) Patients with suspected pernicious anemia or malabsorption disorders
What is it used for?
The test serves for the early detection of a vitamin B12 deficiency, before severe symptoms develop. It complements the classic vitamin B12 measurement and is particularly helpful in diagnosing functional deficiencies.
What can be inferred from that?
A low holo-TC value indicates a functional vitamin B12 deficiency, which can occur despite a normal serum B12 value. Symptoms are: Fatigue and concentration problems Tingling or numbness in the extremities Anemia or neurological disorders A normal value usually excludes a deficiency and makes further tests unnecessary.
What is the ideal time for a test?
The test is meaningful in case of non-specific complaints or in risk groups such as vegans and elderly people. Testing is also appropriate in case of suspected malabsorption or before starting supplementation.
Particularly interesting?
Here is the translation: Holo-TC is a more sensitive marker than total cobalamin, as it only measures the biologically active form of vitamin B12. Alcohol abuse and medications can affect the Holo-TC level.