The first step and usually reassure ur pt.
wash hands. prepare ur pt and ur sterile gloves and foly catheter and sterile pasin and cotton. wash hands again.open the pack of the catherter (maintain it setrility) .don ur sterile gloves.put the setrile pain near the pt. insert the cathe. which it must be suitable in it's gauge. insertion must be gentle to decrease the pain. and the end of the catheter must be in the pasin.By gradual insertion drops of urine start to flow in the tube that mean the catheter is in the bladder.so u must after that to inflate the ballon of the catheter accouding it's size using setrile normal saline. finally conncet the end of the tube to the urine sack...................there is may less pain during insertion so ask the pt to inhalate deeply.
dont forget to document this procedure in the rsing note.