Figure 3. Summary of the studies that were analyzed with reference to the authors, the objective of the study, the results, type of study, results and conclusion and implications for practices in nursing.

* Gauge; † Concentrated red blood cells; ± Milliliters; § Milliliters per hour; | | Hemoglobin; ¶ Citrate phosphate dextrose adenine; ** infusion pumps; †† Blood total; ±± Dose of absorbed radiation§§ Millimeters of mercury; | || | Lactate Dehydrogenase; ¶¶ Saline-adenine-glucose-mannitol.