Authors

Inmaculada Vázquez-Rodríguez Barbero1, José Miguel Pacheco-Salgado1, Amadeo Puebla-Martín1, Miguel Ángel Puebla-Martín1, Mª Pilar Rubio-Serrano1, Mª Gema García-Fernández1

Position

1Enfermero/a. Unidad de Cuidados Intensivos. Hospital General Universitario de Ciudad Real. Ciudad Real

Contact address

Inmaculada Vázquez Rodríguez-Barbero. C/ Arenas, 2. 13250 Daimiel (Ciudad Real).

Contact email: ivaroba@hotmail.com

Abstract

Objective: to confirm the difference in arterial blood glycemic values obtained with three different methods.
Method: a descriptive study conducted in the Intensive Care Unit of a University Hospital, from February to December, 2016. Those patients who were carrying an arterial catheter during the study period were included. The glycemic level in arterial blood was determined by three measurement methods: the Synchron® system, the “Gem Premier 300” gasometer and the FreeStyle glucometer (FreeStyle Optium H reactive strips). A descriptive analysis was conducted with frequencies, percentages, means and standard deviation (SD). Correlation analyses were conducted, and the SPSS version 18.1 statistical package was used.
Results: in total, 222 patients were recruited, 222 samples were obtained, and 666 glycemic data were analyzed. The mean arterial glycemia results obtained (mg/dl) were: 155.43 in the biochemistry lab (gold standard), 164.27 through gasometer and 146.97 through glucometer. The highest correlation was obtained between the glycemic values obtained in the lab and with the gasometer: 0.974
(p< 0.005). The mean values obtained at the lab and those obtained through the use of a gasometer show a mean difference of -8.42 and a 95% confidence interval (CI95%) of 6.88-9.96.
Conclusions: taking lab values (gold standard) as reference, the use of other techniques in the same ICU can present values which vary up to 20 mg/dl above (gasometer) or below (glucometer). There are lower differences with the gold standard when using the gasometer.

Keywords:

Glycemia; critical care; clinical protocols; radial artery; femoral artery; nursing research

Versión en Español

Título:

Glucemia en sangre arterial de pacientes críticos mediante tres técnicas de medición