Davita PCT Final Exam Study Guide
2024 Latest Update
acceptable result for residual bleach - ANSWER < 0.5 ppm
Acceptable result for chlorine/chloramine testing - ANSWER < or equal to 0.1 mg/L
acceptable hardness test result - ANSWER < 1 grain/gallon
final dialysate conductivity - ANSWER 13-15.5 mS
final dialysis pH - ANSWER 6.9-7.6
if dialysis conductivity is too low - ANSWER hemolysis, bursting of blood cells,
cranberry red blood
if dialysate conductivity is too high - ANSWER crenation, shriveling of blood cells, dark
red blood
alcohol-based hand rubs must contain ___________ - ANSWER 60-90% ethyl alcohol,
isopropyl alcohol, or both
when washing hands you should lather and wash vigorously for at least _________ -
ANSWER 20 seconds
PPE includes - ANSWER gowns, face shields, masks, gloves
environmental surfaces are cleaned with ___________ bleach solution - ANSWER
1:100
visible blood or gross blood spills are cleaned with ________ bleach solution -
ANSWER 1:10; and soaked with a new disposable towel in 1:10 bleach solution and
cleaned a second time
teammates who care for confirmed or suspected HBsAg positive patients will only be
assigned to care for surface _______________ patients - ANSWER antigen positive
diffusion - ANSWER movement of dissolved particles across a semipermeable
membrane from higher concentration to lower concentration
ultrafiltration - ANSWER removes water from the blood by pushing it across the
semipermeable membrane, from the blood side within the dialyzer's hollow fibers to the
dialysate side
, convection - ANSWER when solutes move with the water across the semipermeable
membrane
osmosis - ANSWER movement of water across a semipermeable membrane from the
side with the lower solute concentration to higher solute concentration
the maximum recirculation time after a machine has been set up prior to recirculation
initiation cannot exceed _________ - ANSWER 2 hours; longer time can lead to
bacterial proliferation
what is the correct procedure if strikethrough of the external transducer protector has
occurred? - ANSWER change transducer, flush lines back, send to biomed to be
disinfected
the manual conductivity must match the dialysis delivery system displayed conductivity
__________ - ANSWER +/- 0.4 mS
when are dialysate conductivity and pH testing required to be performed? - ANSWER
before each patient treatment (after testing, before recirculation)
if bleach and peracetic acid are mixed, a chemical reaction occurs, producing
__________ - ANSWER toxic chlorine gas
what two requirements must be met prior to initiating system disinfection? - ANSWER
treatment area must be free of patients and free of dialysis processes
acceptable result for absence of peracetic acid - ANSWER < or equal to 1 ppm
transmembrane pressure (TMP) equals __________ - ANSWER venous pressure -
dialysate pressure
blending valve - ANSWER mixes hot and cold water to allow RO to function at most
efficient temperature (77 degrees F)
backflow preventer - ANSWER prevents pre-treated water and disinfectants from
backing up into the city water supply
booster pump - ANSWER increases incoming water flow and pressure, maintains water
pressure needed for components operation
multimedia or depth filter - ANSWER filters out suspended particles like silt and sand in
the water and traps solutes and other substances
water softener - ANSWER softens hard water by removing calcium and magnesium
from incoming water, works together with the brine tank to prevent hard mineral
deposits from damaging RO membranes
2024 Latest Update
acceptable result for residual bleach - ANSWER < 0.5 ppm
Acceptable result for chlorine/chloramine testing - ANSWER < or equal to 0.1 mg/L
acceptable hardness test result - ANSWER < 1 grain/gallon
final dialysate conductivity - ANSWER 13-15.5 mS
final dialysis pH - ANSWER 6.9-7.6
if dialysis conductivity is too low - ANSWER hemolysis, bursting of blood cells,
cranberry red blood
if dialysate conductivity is too high - ANSWER crenation, shriveling of blood cells, dark
red blood
alcohol-based hand rubs must contain ___________ - ANSWER 60-90% ethyl alcohol,
isopropyl alcohol, or both
when washing hands you should lather and wash vigorously for at least _________ -
ANSWER 20 seconds
PPE includes - ANSWER gowns, face shields, masks, gloves
environmental surfaces are cleaned with ___________ bleach solution - ANSWER
1:100
visible blood or gross blood spills are cleaned with ________ bleach solution -
ANSWER 1:10; and soaked with a new disposable towel in 1:10 bleach solution and
cleaned a second time
teammates who care for confirmed or suspected HBsAg positive patients will only be
assigned to care for surface _______________ patients - ANSWER antigen positive
diffusion - ANSWER movement of dissolved particles across a semipermeable
membrane from higher concentration to lower concentration
ultrafiltration - ANSWER removes water from the blood by pushing it across the
semipermeable membrane, from the blood side within the dialyzer's hollow fibers to the
dialysate side
, convection - ANSWER when solutes move with the water across the semipermeable
membrane
osmosis - ANSWER movement of water across a semipermeable membrane from the
side with the lower solute concentration to higher solute concentration
the maximum recirculation time after a machine has been set up prior to recirculation
initiation cannot exceed _________ - ANSWER 2 hours; longer time can lead to
bacterial proliferation
what is the correct procedure if strikethrough of the external transducer protector has
occurred? - ANSWER change transducer, flush lines back, send to biomed to be
disinfected
the manual conductivity must match the dialysis delivery system displayed conductivity
__________ - ANSWER +/- 0.4 mS
when are dialysate conductivity and pH testing required to be performed? - ANSWER
before each patient treatment (after testing, before recirculation)
if bleach and peracetic acid are mixed, a chemical reaction occurs, producing
__________ - ANSWER toxic chlorine gas
what two requirements must be met prior to initiating system disinfection? - ANSWER
treatment area must be free of patients and free of dialysis processes
acceptable result for absence of peracetic acid - ANSWER < or equal to 1 ppm
transmembrane pressure (TMP) equals __________ - ANSWER venous pressure -
dialysate pressure
blending valve - ANSWER mixes hot and cold water to allow RO to function at most
efficient temperature (77 degrees F)
backflow preventer - ANSWER prevents pre-treated water and disinfectants from
backing up into the city water supply
booster pump - ANSWER increases incoming water flow and pressure, maintains water
pressure needed for components operation
multimedia or depth filter - ANSWER filters out suspended particles like silt and sand in
the water and traps solutes and other substances
water softener - ANSWER softens hard water by removing calcium and magnesium
from incoming water, works together with the brine tank to prevent hard mineral
deposits from damaging RO membranes
