Recomendaciones preanalíticas para la medición del equilibrio ácido-base y los gases en sangre. Recomendación (2018)
- Olaia Rodríguez Fraga
- Xavier Navarro Segarra
- Amparo Galán Ortega
- Fernando Rodríguez Cantalejo
- Rubén Gómez Rioja
- Laura Altimira Queral
- María Ángeles Juncos Tobarra
- María José Alcaide Martín
- Isabel García del Pino Castro 1
- Paloma Oliver Sáez
- Montserrat Ventura Alemany 2
- Luis García de Guadiana Romualdo
- 1 Comisión de Calidad Extraanalítica de la Sociedad Española de Medicina de Laboratorio (SEQCML), Barcelona, España
- 2 Comisión de Calidad Extraanalítica, Sociedad Española de Medicina de Laboratorio
ISSN: 1888-4008
Year of publication: 2019
Volume: 12
Issue: 4
Pages: 66-74
Type: Article
More publications in: Revista del laboratorio clínico
Abstract
Blood gas analysis is a commonly ordered test in different hospital settings. The measurement of the parameters included in this analysis is vulnerable to a huge number of pre-analytical conditions. Laboratory staff are responsible for ensuring that these results accurately reflect the acid-base and oxygenation status of the patient. Despite many pre-analytical steps in blood gas testing being common to other laboratory tests, such as proper sample identification, others are particular for this determination, such as the stability of the analytes measured. The aim of this document is to provide recommendations for the control of the pre-analytical variables and other error sources related to blood gas analysis. These include the characteristics of the materials used to collect the blood samples (syringes, needles and anticoagulants), the sample types (arterial, venous and «arterialised» capillary blood), as well as the conditions for sample handling and transport, including the effect of the time between sampling and analysis, the temperature during transport, and the type of transport.