Table 2.

Packed red blood cell validation parameters.

Parameter	PTSa	CRRa	p-value
Temperature variation (°C)	8.3 (5.3 – 10.7)	4.1 (1.5 – 8.5)	0,085
Ht variation	0.6 (-1.05 – 0.95)	0 (-0.8 – 0.6)	0.336
Hb variation	0 (-0.15 – 0.2)	-0.1 (-0.03 – 0.1)	0.369
Supernatant Potassium variation	1.6 (0.1 – 2.45)	0.1 (-1.85 – 2.25)	0.345
AST variation	2 (1 – 7.5)	3 (1 – 7.5)	0.796
LDH variation	58 (17.5 – 149.5)	108 (29.75 - 157)	0.666
Variation in Hemolysis Index	37 (5.5 – 73.5)	51 (27 – 132.5)	0.554
Variation of Visual Hemolysis	169 (80.5 – 415.75)	142.5 (81.5 - 321)	0.412
Free Hb variation	0.03 (0.005 – 0.0925)	0.01 (0 – 0.1)	0.114

PTS: pneumatic tube system. CRR: courier. Hb: hemoglobin. Ht: hematocrit. AST: aspartate aminotransferase. LDH: lactic dehydrogenase. N sample: 9 PTS and 14 CRR.

^aMedian (p25 - p75).