A comparison of sodium concentration measured in laboratory autoanalyser versus point-of-care blood gas machine: A retrospective, multicentre, analytical study in a large adult intensive care unit population
Point-of-care arterial blood gas sodium measurements show small mean differences in eunatraemia and good agreement with paired laboratory samples in adult intensive care unit patients. Caution should be applied when interchanging results between laboratory and point-of-care sodium values in patients with moderate to severe dysnatraemia, as serial measurements using different methods during treatment are unlikely to be within a clinically acceptable range. This is important when caring for patient groups with severe hyponatraemia and induced hypernatraemia, and serial measurement may be better achieved with point-of-care testing due to a combination of ease of access, repeatability, and lower cost.
Authors
- Kevin B. Laupland (ORCID: https://orcid.org/0000-0002-1205-5354)
- Alexis Tabah (ORCID: https://orcid.org/0000-0003-3513-2778)
- Peter Garrett (ORCID: https://orcid.org/0000-0002-6562-5349)
- Jatinder Grewal (ORCID: https://orcid.org/0000-0002-7931-3493)
- Stephanie V. Blank (ORCID: https://orcid.org/0000-0002-5333-9484)
- Chris Anstey (ORCID: https://orcid.org/0000-0003-3636-0107)
- Karthik Venkatesh (ORCID: https://orcid.org/0000-0002-2606-9140)
- James P. McCullough (ORCID: https://orcid.org/0000-0002-7292-2237)
- Antony Attokaran (ORCID: https://orcid.org/0000-0001-6208-5116)
- Amanda Corley (ORCID: https://orcid.org/0000-0002-4250-4077)
- K. Hunter (ORCID: https://orcid.org/0009-0001-1363-0058)
- Stephen Luke (ORCID: https://orcid.org/0000-0002-0429-5649)
- Mahesh Ramanan (ORCID: https://orcid.org/0000-0003-4509-4015)
- Kyle White (ORCID: https://orcid.org/0000-0002-0129-8297)
- Alexander Nesbitt (ORCID: https://orcid.org/0000-0002-1979-8003)
- Aashish Kumar (ORCID: https://orcid.org/0000-0003-2277-4050)
- Stephen Whebell (ORCID: https://orcid.org/0000-0002-2604-8657)
- Philippa McIlroy (ORCID: https://orcid.org/0000-0002-6675-6017)
- Marissa Daniels
- Dinesh Parmar
Institutions
- Griffith University (AU)
- Queensland University of Technology (AU)
- The University of Queensland (AU)
- Royal Brisbane and Women's Hospital (AU)
- Queen Elizabeth II Jubilee Hospital (AU)
- Gold Coast Hospital (AU)
- Mackay Base Hospital (AU)
- Townsville Hospital (AU)
- Cairns Hospital (AU)
- Logan Hospital (AU)
- Princess Alexandra Hospital (AU)
- UNSW Sydney (AU)
- Sunshine Coast University Hospital (AU)
- NTT WEST Osaka Hospital (JP)
- The George Institute for Global Health (AU)
- Prince Charles Hospital (AU)
- Redcliffe Hospital (AU)
- Central Queensland University (AU)
- James Cook University (AU)
Publication Details
- Journal
- Critical Care and Resuscitation
- Published
- 2025-12-01
- DOI
- https://doi.org/10.1016/j.ccrj.2025.100149
- Citations
- 1
- Primary Topic
- Electrolyte and hormonal disorders
- Type
- article
- Field-Weighted Citation Impact
- 1.52