Water Treatment Final Exam Multiple Choice

Semipermeable membrane - Answer- Allows only certain sized particles to pass through What happens in diffusion? - Answer- Solutes move through a membrane from an area of higher concentration to a lower one Which of these best describe osmosis? - Answer- water moving through a membrane from a lower solute concentration to a higher one What role does ultrafiltration play in dialysis? - Answer- Removes water from the patients blood Gradient is a - Answer- difference Which of these substances might be included in a dialysate prescription? - Answer- bicarbonate, sodium, potassium what condition occurs due to dialysate that is too hot? - Answer- hemolysis Testing for sterilant levels in a hemodialysis machine prior to patient use is positive for sterilant. This means the machine: - Answer- needs further rinsing In a dialysis machine, the proportioning system does what? - Answer- appropriately mix the dialysate concentrates with water Blood leak detectors are extremely sensitive and can determine: - Answer- serum potassium levels A conductivity alarm sounds during a hemodialysis treatment. The technician should expect which of these events to have occurred? - Answer- Dialyzer was bypassed Although dialysate delivery systems have back-up monitoring systems, it is critical that: - Answer- all of the above Which of the following are ways to handle chemicals safely? - Answer- all of the above All are included in the dialysate delivery system monitors except: - Answer- UF control systems A measurement of ions or particles that carry an electrical charge is known as: - Answer- conductivity In h