DAVITA PCT 2026 STUDY GUIDE QUESTIONS AND
ANSWERS MARKED A+
✔✔The manual conductivity must match the dialysis delivery system displayed
conductivity_________ - ✔✔+/- 0.4 mS of the theoretical conductivity (TCD) for
Fresenius delivery systems
✔✔The maximum recirculation time after a machine has been set up prior to treatment
initiation cannot exceed _____ hours. - ✔✔2 hours
✔✔What is the rationale for limiting recirculation time? - ✔✔bacterial proliferation in the
extracorporeal circuit may occur
✔✔Some blood lines are equipped with external transducer protectors. What is the
correct procedure to be followed once strikethrough of an external transducer protector
has occurred? - ✔✔upon completion of treatment, the delivery system is to be removed
from service and labeled with date, time, description of problem and name the
teammate reporting the problem. the internal transducer protector will be changed by
boomed tech. and delivery system will be disinfected prior to return use
✔✔The acceptable range for proportioned dialysate pH is ____________ - ✔✔6.9-7.6
✔✔When are dialysate conductivity and pH testing required to be performed? - ✔✔prior
to initiating a treatment and whenever dialysate concentrate(s) (acid or bicarb) are
changed or replaced during the course of the treatment
✔✔If bleach and peracetic acid are mixed, a chemical reaction occurs, producing -
✔✔toxic chlorine gas
✔✔What are the two requirements that must be met prior to initiating system
disinfection? - ✔✔the treatment area must be patient free and no other processes are
using the dialysis quality water
✔✔What must be done to indicate the presence of disinfectant in the machines during
system disinfection? - ✔✔notification of the type of disinfection is prominently displaced
on each delivery system
✔✔How do we verify the absence of chemical disinfectant following system disinfection
on the first treatment day following the disinfection? - ✔✔facility teammates perform an
independent chemical residual test prior to beginning the daily activities
✔✔What is an acceptable test result when testing for the absence of peracetic acid? -
✔✔a level or less than or equal to 1 ppm
,✔✔Dialysate with a conductivity that is too low causes.... - ✔✔hemolysis, the bursting of
RBCs. The color of hemolyzed blood is cranberry red.
✔✔Dialysate with a conductivity that is too high causes... - ✔✔crenation, a shriveling up
of RBCs. The color of the blood will be dark.
✔✔The transport mechanism of osmosis is responsible for.... - ✔✔hemolysis and
crenation as water leaves or enters RBCs.
✔✔If the dialysate temperature becomes too hot... - ✔✔it can hemolyze RBCs.
✔✔A dialysate temperature too cold - ✔✔s not life threatening but can chill the patient
and cause hypothermic symptoms and may decrease diffusion
✔✔Dialysate Flow Rate (DFR) - ✔✔is ordered by the physician as part of the
prescription
✔✔blood leak detector? - ✔✔checks for blood in dialysate during the treatment, air
bubbles can cause false alarm during set up and priming and to correct check Hansen
connectors and verify they are tight
✔✔transmembrane pressure (TMP) - ✔✔equal to the venous pressure minus the
dialysate pressure measured in mmHg.
✔✔Blood Flow Rate (BFR) - ✔✔resistance to the flow establishes the pressures in the
extracorporeal circuit
✔✔Arterial Pressure (AP) - ✔✔blood pump pulls blood from the vascular access, this
pressure is negative
✔✔Venous Pressure (VP) - ✔✔After the blood leaves the dialyzer and is pushed
through the venous drip chamber and
back into the body, the pressure reading becomes positive
✔✔water makes up about.. - ✔✔90% of dialysate
✔✔what are the 3 processes that make up the water treatment? - ✔✔pretreatment,
water purification, and distribution
✔✔what does AAMI stand for? - ✔✔Association for the Advancement of Medical
Instrumentation
, ✔✔pretreatment consist of? - ✔✔blending valve, black flow preventer, booster pump,
depth filter, water softener, carbon tanks, RO pre-filter
✔✔blending valve? - ✔✔Mixes hot and cold water to allow the RO to function at the
most efficient temperature, which is 77 F for conventional systems. between 65 F to 85
F
✔✔Backflow Preventer - ✔✔Prevents pre-treated water and disinfectants from backing
up into the city water supply
✔✔booster pump - ✔✔expectation tank catches additional pressure booster pump gives
off
✔✔multimedia or depth filter - ✔✔Filters out suspended particles like silt and sand in the
water and traps solutes and other substances
✔✔water softener - ✔✔"Softens" hard water by removing calcium and magnesium from
the incoming water
✔✔carbon tanks - ✔✔primary and secondary carbon tanks
✔✔RO pre-filter - ✔✔Removes fine carbon particles, resin beads and other debris; is
placed just before the RO unit
✔✔purification requires.. - ✔✔water to pass through RO membranes followed by an
ultrafilter
✔✔the RO unit removes.... - ✔✔removes bacteria, viruses, endotoxin, salts, particles
and other solutes by reversing the transport mechanism osmosis
✔✔RO membranes are very permeable to water but not to chemicals, substances that
are not dissolved, or microorganisms and most substances..... - ✔✔(90-99%) are
rejected from the water.
✔✔ultrafilter - ✔✔also known as the pyrogen or endotoxin filter is placed at the end of
the water treatment system prior to the first point of use and is capable of removing
viruses, bacteria, and most endotoxin
✔✔Observations and test results listed on the Daily Water Treatment Log are entered
each facility operating day ______ to the start of dialysis treatments. - ✔✔prior
✔✔A ___________ reviews the Daily Water Treatment Log for completeness and
verifies that all parameters are within specified limits. - ✔✔licensed nurse
ANSWERS MARKED A+
✔✔The manual conductivity must match the dialysis delivery system displayed
conductivity_________ - ✔✔+/- 0.4 mS of the theoretical conductivity (TCD) for
Fresenius delivery systems
✔✔The maximum recirculation time after a machine has been set up prior to treatment
initiation cannot exceed _____ hours. - ✔✔2 hours
✔✔What is the rationale for limiting recirculation time? - ✔✔bacterial proliferation in the
extracorporeal circuit may occur
✔✔Some blood lines are equipped with external transducer protectors. What is the
correct procedure to be followed once strikethrough of an external transducer protector
has occurred? - ✔✔upon completion of treatment, the delivery system is to be removed
from service and labeled with date, time, description of problem and name the
teammate reporting the problem. the internal transducer protector will be changed by
boomed tech. and delivery system will be disinfected prior to return use
✔✔The acceptable range for proportioned dialysate pH is ____________ - ✔✔6.9-7.6
✔✔When are dialysate conductivity and pH testing required to be performed? - ✔✔prior
to initiating a treatment and whenever dialysate concentrate(s) (acid or bicarb) are
changed or replaced during the course of the treatment
✔✔If bleach and peracetic acid are mixed, a chemical reaction occurs, producing -
✔✔toxic chlorine gas
✔✔What are the two requirements that must be met prior to initiating system
disinfection? - ✔✔the treatment area must be patient free and no other processes are
using the dialysis quality water
✔✔What must be done to indicate the presence of disinfectant in the machines during
system disinfection? - ✔✔notification of the type of disinfection is prominently displaced
on each delivery system
✔✔How do we verify the absence of chemical disinfectant following system disinfection
on the first treatment day following the disinfection? - ✔✔facility teammates perform an
independent chemical residual test prior to beginning the daily activities
✔✔What is an acceptable test result when testing for the absence of peracetic acid? -
✔✔a level or less than or equal to 1 ppm
,✔✔Dialysate with a conductivity that is too low causes.... - ✔✔hemolysis, the bursting of
RBCs. The color of hemolyzed blood is cranberry red.
✔✔Dialysate with a conductivity that is too high causes... - ✔✔crenation, a shriveling up
of RBCs. The color of the blood will be dark.
✔✔The transport mechanism of osmosis is responsible for.... - ✔✔hemolysis and
crenation as water leaves or enters RBCs.
✔✔If the dialysate temperature becomes too hot... - ✔✔it can hemolyze RBCs.
✔✔A dialysate temperature too cold - ✔✔s not life threatening but can chill the patient
and cause hypothermic symptoms and may decrease diffusion
✔✔Dialysate Flow Rate (DFR) - ✔✔is ordered by the physician as part of the
prescription
✔✔blood leak detector? - ✔✔checks for blood in dialysate during the treatment, air
bubbles can cause false alarm during set up and priming and to correct check Hansen
connectors and verify they are tight
✔✔transmembrane pressure (TMP) - ✔✔equal to the venous pressure minus the
dialysate pressure measured in mmHg.
✔✔Blood Flow Rate (BFR) - ✔✔resistance to the flow establishes the pressures in the
extracorporeal circuit
✔✔Arterial Pressure (AP) - ✔✔blood pump pulls blood from the vascular access, this
pressure is negative
✔✔Venous Pressure (VP) - ✔✔After the blood leaves the dialyzer and is pushed
through the venous drip chamber and
back into the body, the pressure reading becomes positive
✔✔water makes up about.. - ✔✔90% of dialysate
✔✔what are the 3 processes that make up the water treatment? - ✔✔pretreatment,
water purification, and distribution
✔✔what does AAMI stand for? - ✔✔Association for the Advancement of Medical
Instrumentation
, ✔✔pretreatment consist of? - ✔✔blending valve, black flow preventer, booster pump,
depth filter, water softener, carbon tanks, RO pre-filter
✔✔blending valve? - ✔✔Mixes hot and cold water to allow the RO to function at the
most efficient temperature, which is 77 F for conventional systems. between 65 F to 85
F
✔✔Backflow Preventer - ✔✔Prevents pre-treated water and disinfectants from backing
up into the city water supply
✔✔booster pump - ✔✔expectation tank catches additional pressure booster pump gives
off
✔✔multimedia or depth filter - ✔✔Filters out suspended particles like silt and sand in the
water and traps solutes and other substances
✔✔water softener - ✔✔"Softens" hard water by removing calcium and magnesium from
the incoming water
✔✔carbon tanks - ✔✔primary and secondary carbon tanks
✔✔RO pre-filter - ✔✔Removes fine carbon particles, resin beads and other debris; is
placed just before the RO unit
✔✔purification requires.. - ✔✔water to pass through RO membranes followed by an
ultrafilter
✔✔the RO unit removes.... - ✔✔removes bacteria, viruses, endotoxin, salts, particles
and other solutes by reversing the transport mechanism osmosis
✔✔RO membranes are very permeable to water but not to chemicals, substances that
are not dissolved, or microorganisms and most substances..... - ✔✔(90-99%) are
rejected from the water.
✔✔ultrafilter - ✔✔also known as the pyrogen or endotoxin filter is placed at the end of
the water treatment system prior to the first point of use and is capable of removing
viruses, bacteria, and most endotoxin
✔✔Observations and test results listed on the Daily Water Treatment Log are entered
each facility operating day ______ to the start of dialysis treatments. - ✔✔prior
✔✔A ___________ reviews the Daily Water Treatment Log for completeness and
verifies that all parameters are within specified limits. - ✔✔licensed nurse
