EldonCards for
ABO- and RhD blood grouping

EldonCard types
Video: How to use


Knowing your blood type can help you understand your health better;
it is also needed for blood donations and important for safe pregnancies.
Most critically, it could save your life if you need an emergency blood transfusion. You can learn your blood type in just a couple of minutes using the EldonCard™.

Some blood types are linked to higher risk of certain medical conditions:
Type AB, A and B are at higher risk of developing cardiovascular complications such as heart disease, blood clots (thrombosis), and stroke. Types A, B, and AB are up to 82 percent more likely to develop cognition and memory problems compared to those with Type O. Recently, several studies have confirmed the potential association between blood group A and risk of SARS-CoV-2, Corona virus infection and complications from the disease: Covid-19.

Studies suggest that people with blood type O may have a lower risk of complications from Covid-19.

Help yourself, family and friends - know your blood type - use the  EldonCard™.
Why you shall test your family
Stay safe know your blood type


The importance of blood types and the convenience of the EldonCardTM


"Point of Care Anywhere"

Eldon Biologicals A/S

ELDON BIOLOGICALS A/S is a Danish manufacturer of dry format cards for blood grouping. Based on an invention by the Danish physician Knud Eldon, EldonCards have been manufactured and used for more than 40 years. Over time millions of cards have been utilised to establish individuals’ blood group within the AB0-Rhesus (D) systems and to ensure compatibility of patient/donor blood. Today EldonCards are based on the use of special formulations of selected monoclonal antibodies. The special qualities of the EldonCards are the following:
  • Shelf-life 24 months at 5-37 °C
  • Portable and compact
  • Blood grouping on location
  • Result after just 2 minutes
  • Easy to learn, easy to use
  • No need for refrigeration and daily controls
  • Whole blood can be used down to 5 μl.
  • No need for separation of red cells and blood plasma
Eldon Biologicals A/S | Sandtoften 10 | 2820 Gentofte | Phone:42138115