| (B) has at least 18 months experience as an RN, and holds a current certification from a nationally recognized board in nephrology nursing or hemodialysis. (72) Supervision--Authoritative procedural guidance by a qualified person for the accomplishment of a function or activity with initial direction and periodic inspection of the actual act of accomplishing the function or activity. Immediate supervision means the supervisor is actually observing the task or activity as it is performed. Direct supervision means the supervisor is on the premises but not necessarily immediately physically present where the task or activity is being performed. Indirect supervision means the supervisor is not on the premises but is accessible by two-way communication and able to respond to an inquiry when made, and is readily available for consultation. (73) Technical supervisor--The supervisor of the facility's mechanical, reuse and water treatment systems. (74) Training--The learning of tasks through on-the-job experience or instruction by an individual who has the capacity through education or experience to perform the task or activity to be delegated. (75) Ultrafilter--A membrane filter with a pore size in the range 0.001 to 0.05 micron (µm). Performance is usually rated in terms of a nominal molecular weight cut off (MWCO), which is defined as the smallest molecular weight species for which the filter membrane has more than 90% rejection. Ultrafilters with a nominal MWCO of 20,000 or less are generally adequate for endotoxin removal. (76) Water distribution systems--Components to include any storage tanks and piping used to distribute the product water from the purification cascade to or from its point of use, including individual hemodialysis machines, dialyzer reprocessing equipment, and dialysate concentrate preparation systems. (77) Water treatment system--A collection of water purification devices and associated piping, pumps, valves, gauges, etc., that together produce purified water for hemodialysis applications and deliver it to the point of use. (78) Working day--Any day of the calendar week excluding Saturday or Sunday or holidays. |
