Table 1. Hemolysis rate in serum samples collected from intravenous lines in the emergency department with a traditional vacuum system and with the S-Monovette blood drawing system in aspiration mode.

	Traditional vacuum system	S-Monovette	P
Total	14155	13319
Non hemolysed (%)	13531 (95.59%)	12977 (97.43%)	< 0.001
Hemolysed (%)	624 (4.41%)	342 (2.57%)