The answer is the third one! i learned it in class
The intervention that helped prove that catheter-associated bloodstream infections (CLABSIs) were preventable consequences of care was a checklist of evidence-based practices applied consistently and every time a catheter was used. This helped in the collection of data that was used to analyse the previous performances of the cases where catheter was used.
Purging will b the answer because C and D doesnt sound right.
Over time bacteria get used to anti bacterial medicine. Doing this can add symptoms and take away the easiest process of healing grout the human and destroying the bacteria.