Iimbonakalo :1. Umzimba ongaphezulu womntu omdala wenziwe ngezinto ezikhethekileyo, kwaye ulwakhiwo lwangaphakathi lomzimba lwahlukile;2. Inkqubo ye-cyclic ecacileyo: umthambo we-cephalic, umthambo we-basilic, umthambo we-jugular, umthambo we-subclavian, i-precava kunye ne-hear; yonke inkqubo ye-catheter engena kwi-precava inokubonwa.