Background: To study the impact of 3 blood-saving strategies to reduce the amount of blood collected on the analyses performed on critically ill patients. Methods: Pre-post quasi-experimental study. Population: patients > 18 years of age, stay of more than 24 hours. Variables: sex, age, diagnosis, admission unit, number of tests performed in 24 hours, volume of waste, usable blood volume, total volume collected in 24 hours, haemoglobin (Hb) at admission and at 24 hours, weight balance, Acute Physiology and Chronic Health Evaluation (APACHE) severity indices, Simplified Acute Physiologic Score (SAPS), catheter, extraction technique, and work experience. A descriptive analysis of variance and association of variables was carried out using the SPSS Statistics 20.0. Results: The average number of laboratory tests per patient 24 hours after admission in the post-intervention phase was 5.8 (±1.9), compared to 7.2 (±2.6) in the pre-intervention phase (p < 0.001). The average volume of waste was 14 mL (±10.2) vs. 31.6 mL (±15.8) with p < 0.001. The average volume of usable blood for the analyses was 22.9 mL (±10) vs. 48.1 mL (±16.7) p < 0.001. The total volume of usable blood was 38.6 mL (±17.6) vs. 80.7 mL (±26.8) p < 0.001. Professionals with < 5 years’ experience were found to discard the most blood (p < 0.001). Conclusions: The implementation of 3 blood-saving strategies has reduced the volume collected for clinical analysis in critically ill patients by more than 50% in the first 24 hours of admission.
Cite this paper
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