DAVITA PCT 2026 END OF COURSE QUESTIONS AND
ANSWERS MARKED A+
✔✔Water treatment log entered when each day? - ✔✔Prior to the start of dialysis
treatments
✔✔Who reviews the daily water treatment logs? - ✔✔The registered nurse
✔✔Total chlorine testing is done when? - ✔✔Before the first patient, and every four
hours until all activities requiring dialysis quality water are completed
✔✔Total chlorine samples are draw after the water system has been operating for ___
minutes - ✔✔15 minutes
✔✔An acceptabletotal chlorine test result from the primary carbon tank is - ✔✔<0.5 ppm
✔✔Hardness testing is done at the _______ of the day - ✔✔End
✔✔Hardness testing results greater than ______ must be reported to the biomed team -
✔✔>1 grain/gallon
✔✔How much of dialysate is water? - ✔✔About 90%
✔✔Reason(s) for a high (more negative) pre-pump AP - ✔✔Inadequate flow from
vascular access
✔✔Reason(s) for a low (less negative) pre-pump AP - ✔✔Vasospasm, inappropriate
blood flow
✔✔If dialysate becomes too hot, it can - ✔✔Hemolyze red blood cells
✔✔Dialysate that is too cold can - ✔✔Cause hypothermic symptoms in the patient
✔✔Why is arterial pressure negative? - ✔✔The blood pump pulls from the access,
causing negative pressure
✔✔Dialysate is a mixture of: - ✔✔Dialysis quality water, acid concentrates with
electrolytes (sodium, calcium, magnesium, chloride, potassium, and glucose), and
bicarbonate concentrate to buffer the acid
✔✔Low dialysate conductivity - ✔✔Causes hemolysis
✔✔High dialysate conductivity - ✔✔Causes crenation, the shriveling of red blood cells
, ✔✔If bleach and peracetic acid are mixed, _______ gas occurs - ✔✔Chlorine
✔✔Two requirements that must be met prior to initiating system disinfection - ✔✔1.
There are no patients
2. There are no other processes using dialysis water
✔✔Acceptable test result for the absence of peracetic acid - ✔✔<500 ppm (mg/L)
✔✔Machine daily internal cleaning - ✔✔Heat disinfection, citric acid and vinegar rinse
✔✔Machine weekly internal cleaning - ✔✔Bleach or peracetic acid disinfection
✔✔Maximum recirculation time after a machine has been set up prior to treatment -
✔✔2 hours
✔✔Why do we limit recirculation time? - ✔✔Bacterial proliferation could occur
✔✔What do you do if strikethrough of a transducer occurs? - ✔✔Notify FA, find date of
last strikethrough inspection, perform strikethrough recovery, document it in BART
✔✔Acceptable range for proportioned dialysate pH is - ✔✔6.9-7.6
✔✔Manual conductivity must match delivery system displayed conductivity at - ✔✔+/-
0.4
✔✔When are conductivity and pH testing performed? - ✔✔When changing the acid
container or changing the acid concentrate
✔✔External transducer protectors must be replaced - ✔✔Prior to each patient use or
whenever blood or saline is observed in contact with the patient side of the transducer
protector
✔✔The only solution we use to prime blood lines and dialyzer - ✔✔Sodium chloride
0.9% (normal saline)
✔✔Convection or solute drag - ✔✔Solutes move with the water across the
semipermeable membrane
✔✔Osmosis - ✔✔The movement of water across a semipermeable membrane from the
side with the lower solute concentration to the side with higher solute concentration
✔✔Ultrafiltration - ✔✔removes water from the blood during dialysis by pushing it across
a semipermeable membrane
ANSWERS MARKED A+
✔✔Water treatment log entered when each day? - ✔✔Prior to the start of dialysis
treatments
✔✔Who reviews the daily water treatment logs? - ✔✔The registered nurse
✔✔Total chlorine testing is done when? - ✔✔Before the first patient, and every four
hours until all activities requiring dialysis quality water are completed
✔✔Total chlorine samples are draw after the water system has been operating for ___
minutes - ✔✔15 minutes
✔✔An acceptabletotal chlorine test result from the primary carbon tank is - ✔✔<0.5 ppm
✔✔Hardness testing is done at the _______ of the day - ✔✔End
✔✔Hardness testing results greater than ______ must be reported to the biomed team -
✔✔>1 grain/gallon
✔✔How much of dialysate is water? - ✔✔About 90%
✔✔Reason(s) for a high (more negative) pre-pump AP - ✔✔Inadequate flow from
vascular access
✔✔Reason(s) for a low (less negative) pre-pump AP - ✔✔Vasospasm, inappropriate
blood flow
✔✔If dialysate becomes too hot, it can - ✔✔Hemolyze red blood cells
✔✔Dialysate that is too cold can - ✔✔Cause hypothermic symptoms in the patient
✔✔Why is arterial pressure negative? - ✔✔The blood pump pulls from the access,
causing negative pressure
✔✔Dialysate is a mixture of: - ✔✔Dialysis quality water, acid concentrates with
electrolytes (sodium, calcium, magnesium, chloride, potassium, and glucose), and
bicarbonate concentrate to buffer the acid
✔✔Low dialysate conductivity - ✔✔Causes hemolysis
✔✔High dialysate conductivity - ✔✔Causes crenation, the shriveling of red blood cells
, ✔✔If bleach and peracetic acid are mixed, _______ gas occurs - ✔✔Chlorine
✔✔Two requirements that must be met prior to initiating system disinfection - ✔✔1.
There are no patients
2. There are no other processes using dialysis water
✔✔Acceptable test result for the absence of peracetic acid - ✔✔<500 ppm (mg/L)
✔✔Machine daily internal cleaning - ✔✔Heat disinfection, citric acid and vinegar rinse
✔✔Machine weekly internal cleaning - ✔✔Bleach or peracetic acid disinfection
✔✔Maximum recirculation time after a machine has been set up prior to treatment -
✔✔2 hours
✔✔Why do we limit recirculation time? - ✔✔Bacterial proliferation could occur
✔✔What do you do if strikethrough of a transducer occurs? - ✔✔Notify FA, find date of
last strikethrough inspection, perform strikethrough recovery, document it in BART
✔✔Acceptable range for proportioned dialysate pH is - ✔✔6.9-7.6
✔✔Manual conductivity must match delivery system displayed conductivity at - ✔✔+/-
0.4
✔✔When are conductivity and pH testing performed? - ✔✔When changing the acid
container or changing the acid concentrate
✔✔External transducer protectors must be replaced - ✔✔Prior to each patient use or
whenever blood or saline is observed in contact with the patient side of the transducer
protector
✔✔The only solution we use to prime blood lines and dialyzer - ✔✔Sodium chloride
0.9% (normal saline)
✔✔Convection or solute drag - ✔✔Solutes move with the water across the
semipermeable membrane
✔✔Osmosis - ✔✔The movement of water across a semipermeable membrane from the
side with the lower solute concentration to the side with higher solute concentration
✔✔Ultrafiltration - ✔✔removes water from the blood during dialysis by pushing it across
a semipermeable membrane
