Table 5.

Types of errors to be assessed during the study.

Phase 1 (Drug Preparation)

Phase 2 (Drug Administration)

✓Defective connection of the needle to the syringe (both groups); ✓Non-compliance with aseptic technique during needle connection (both groups); ✓Incorrect drug dose or flushing volume after aspiration (in mL) (both groups); ✓Non-compliance with aseptic technique during drug/flushing aspiration (both groups); ✓Incorrect syringe labelling or label position (both groups); ✓Wrong chamber aspiration sequence (double-chamber group); ✓Aspiration of drug/flushing solution to the wrong chamber (double-chamber group); ✓Chamber contamination (double-chamber group).

✓Defective connection of the syringe to the catheter hub (both groups); ✓Non-compliance with aseptic technique during syringe-to-hub connection (both groups); ✓Incorrect administration of drug dose or flushing volume (in mL) (both groups); ✓Non-compliance with aseptic technique during drug/flushing administration (both groups); ✓Wrong administration sequence (both groups); ✓Non-compliance with the push–pause technique during catheter flushing (both groups); ✓Chamber contamination (double-chamber group); ✓Catheter accidental removal (both groups).