Radiometer - specialists by blood

Radiometer - pioneers in blood gas testing since 1954

  • Connected solutions, specialist knowledge, trusted partnership
  • Continuous innovation and improvement
  • Market leader in blood gas testing

A proud beginning in blood gas analysis

The history of Radiometer as we know it today began in 1954 when Radiometer developed the world’s first commercially available blood gas analyser. [1, 2]

But did you know that the story of Radiometer dates back even further? Founded in 1935, Radiometer originally set out to focus on electronic measuring instruments for the growing radio industry.

However, when the polio epidemic swept across Europe in the early 1950s, Professor Poul Astrup and anesthesiologist Bjarne Ibsen discovered that Radiometer pH meters could be used to measure the pH value in blood. [1, 2, 3]

Continued focus on acute care diagnostics

Since then, we have refined our blood gas testing knowledge and experience, and continue to advance our acute care diagnostic solutions.

For example, our blood gas analysers can deliver blood gas results from 19 parameters including creatinine and urea in just 35 seconds.

In addition, the Radiometer Immunoassay Analyzer AQT90 FLEX can test nine different biomarkers, which aid in the diagnosis of: infection, heart failure, pregnancy, venous thromboembolism, and myocardial infarction – providing results within 11 to 21 minutes.

Today, as the global market leader within blood gas testing, we continue to help health care professionals make sure life comes first through connected solutions, expert knowledge and trusted partnership.

What is blood gas testing?

When a critically ill patient is suffering from a respiratory or metabolic disorder, arterial blood gas analysis is central to evaluate the patient’s status, make the appropriate diagnostic decisions and monitor the effects of potential treatment.

In blood gas analysis, you measure the amount of oxygen (O2), carbon dioxide (CO2) and the acidity of pH in the blood as well as concentrations of other parameters, like electrolytes, metabolites and co-oximetry.

Critically ill patients are often unstable and their blood gas values can change rapidly, requiring fast intervention by caregivers.

Why fast and reliable results are essential in blood gas analysis

A blood gas result reflects the status of the patient. Repeated blood sampling is often necessary to obtain a new blood gas test result here and now.

In order to make timely and well-founded diagnosis and treatment decisions, blood gas test results must be available within a very short time.

That is why clinicians often perform blood gas testing directly at the point of care in order to avoid waiting for test results from the central lab.

Radiometer blood gas analysers deliver fast and reliable results in a matter of seconds on very small blood sample volumes of only 65 µL.

Guiding your blood gas testing

Blood gas analysis requires close attention to best practices throughout the entire blood gas analysis process, including the preanalytical, analytical and postanalytical phases.

The quality of the blood gas sample is central for the quality of the result.

We have gathered a set of educational videos and training material for you on the collection of arterial blood gas samples, understanding the acid-base balance and how to interpret the patient results.

Related knowledge sources

The acute care testing handbook

Download the free guide on blood gases and other critical parameters in acute care testing.


1. Andersen H.L. Livsværk - Radiometer 1935-2004. Historika 2020
2. Senelar LR. The Danish anaesthesiologist Björn Ibsen a pioneer of long-term ventilation on the upper airways. Senckenberg Institute of History and Ethics of Medicine 2009. 1-49.
3. Severinghaus J et al. Blood Gas Analysis and Critical Care Medicine. Am J Respir Crit Care Med 1998; 157: S114-S122.

MAPSSS-000384 R2

Cookies are used on this website

Use of cookies
Confirm your account with Radiometer

Please enter a valid email

By submitting your e-mail you agree to the data policy notice
Radiometer is using Microsoft Azure Active Directory to authenticate customer access. If you are already registered you will be taken to Microsoft AD to sign in using your Microsoft AD credentials.
You are already registered
Radiometer is using Microsoft Azure AD to authenticate customer access. If you are already registered you will be taken to AZURE to sign in using your AZURE credentials.
Thank you

We will be sending an e-mail invitation to you shortly to sign in using Microsoft Azure AD.

Radiometer is using Microsoft Azure AD to authenticate customer access.

It seems that your e-mail is not registered with us

Radiometer is using Microsoft Azure AD to authenticate customer access. If your e-mail is not registered with us please click CONTINUE and we will guide you through the sign-in process.
We have previously sent an invitation by e-mail

Please click "Get started" in the e-mail to complete the registration process

Radiometer is using Microsoft Azure AD to authenticate customer access.

We were not able to process your request due to a communication error


It seems this account has not been given access to the portal

Radiometer is using Microsoft AZURE Active Directory to authenticate users

Radiometer uses Azure AD to provide our customers and partners secure access to documents, resources, and other services on our customer portal.

If your organization is already using Azure AD you can use the same credentials to access Radiometer's customer portal.

Key benefits

  • Allow the use of existing Active Directory credentials
  • Single-sign on experience
  • Use same credentials to access future services    

Request access

You will receive an invitation to access our services via e-mail when your request  has been approved.

When you accept the invitation, and your organization is already using AZURE AD, you can use the same credentials to access Radiometer's customer portal. Otherwise, a one-time password will be sent via e-mail to sign in.

Effective Date January 20th, 2023 (last updated January 20th, 2023)


Radiometer values your privacy and the protection of your personal data. This policy (“Policy”) explains how Radiometer its affiliates, subsidiaries or related companies, a full list of which can be located here (together, “Radiometer,”, “our”, “us,” or “we”), collects, uses, shares, transfers and processes data collected from or about you.

Personal Data” is any information that can be used to directly or indirectly identify an individual or that can be reasonably expected to link to an individual. This can include items such as name, address, telephone number, credit card details, email address, ID number, Internet Protocol (“IP”) address of an electronic device used by an individual, or other identifying code (even absent of other identifying information). Statistical and non-identifiable metric data are not considered Personal Data.

The Radiometer subsidiary, affiliate or related company with which you interact is, where applicable, the data controller (or equivalent under applicable law) responsible for the processing of your Personal Data. You can find a list of the relevant legal entities that act as data controllers in Appendix 1 to this Policy.


This Policy describes the types of Personal Data that we may collect, process or disclose about you and how you may govern this processing by exercising applicable legal rights. This Policy applies to both online and offline information collection, including your use of websites or subdomains operated by us, any mobile applications, when we provide products and/or services to you or notify you about prospective items of interest and in other situations where you interact with us in-person, by telephone or by mail where this Policy is posted or referenced.

There may be occasion where you have been provided with a circumstance-specific privacy notice that is separate from this policy, such as privacy notices for specific activities such as Recruitment. To the extent you were provided with a different notice, those notices apply and govern our interactions with you. If you provide Personal Data about parties other than yourself, you are responsible for ensuring their knowledge of how we will process their personal data, and, where applicable, obtaining any necessary consents required in advance.

Read more