CCHT STUDY GUIDE EXAM 2025 QUESTIONS WITH
SOLUTIONS GUARANTEE A+
✔✔with buttonhole access sites, what should the technician do to prevent '' hubbing " ?
- ✔✔leave 1/16 th to 1/8 inch of the needle exposed
✔✔if a patient has a dialyzer clearance rate of 250 mL/ min with 4- hour treatment, the
total volume of blood cleared is - ✔✔60 L.
✔✔what is the most important factor in preventing exsanguination from dialysis line
separation? - ✔✔access site visible
✔✔if a patient states that she has been skipping lunch because she is too tired to eat
after dialysis, the best solution is to. - ✔✔report to the nurse and renal dietician
✔✔if a patient exhibits signs and symptoms of hemolysis during dialysis, the immediate
action should be to - ✔✔stops the blood pump and clamp the blood lines
✔✔the amount of dialysis that a hemodialysis patient is prescribed is based on the
removal of - ✔✔urea
✔✔maturation of a prosthetic arteriovenous graft usually takes - ✔✔3 to 6 weeks
✔✔the purpose of the negative germicide test is to ensure that - ✔✔the reprocessed
dialyzer is free of germicides
✔✔if a patient develops angina (chest pain) radiating to the neck, jaw, and left arm and
the patient's blood pressure drops during treatment, the technician should notify the
nurse and - ✔✔decreased blood flow rate and ultrafiltration
✔✔the technician is reinforcing a patient's training regarding management of fluid
intake. the patient, who still urinates, has a base of 1000 ml intake per day. if the patient
urinates 500 ml in a 24-hour period , how much fluid is the patient allowed the following
day? - ✔✔1500ml
✔✔the greatest risk of bacteremia (infection in the blood) is associated with which type
of vascular access? - ✔✔dialysis catheter
✔✔the external surface of the hemodialysis machine should be cleaned and disinfected
at least. - ✔✔after every patient
✔✔when checking the water temperature in the system, the technician records the
temperature at 78 F (25.5 C). in order for the reverse osmosis (RO) equipment that is
,partof the water treatment system to work properly, the water temperature must be
maintained at - ✔✔77' F to 82'F ( 25' C to 28'C )
✔✔when testing the chlorine levels in the water system, the water sample should be
taken from the. - ✔✔first carbon tank
✔✔when considering the chain of infection, the three most common reservoirs of
interest include humans, environment and - ✔✔animals
✔✔a solution is a mixture of - ✔✔solute and solvent
✔✔when reinforcing education about weight gain, a patient should be advised that the
usual goal for interdialytic weight gain is less than - ✔✔1.0 kg/d
✔✔if a high-pressure alarm for arterial pressure (pre-pum ) sounds during hemodialysis,
this could indicate. - ✔✔drop in speed of blood pump
✔✔if a low- pressure alarm for venous sounds during hemodialysis, this could indicate. -
✔✔clotting in the access
✔✔according to KDOQI guidelines, when administering hemodialysis to a patient a,
facemark should be worn - ✔✔for all access connection
✔✔the most common complication associated with poor needle site rotation in a graft is
- ✔✔pseudoaneurysm
✔✔in hemodialysis, ultrafiltration refers to extraction of - ✔✔fluid
✔✔the patient has develop a small aneurysm and asks the technician to cannulate the
aneurysm for the hemodialysis treatment because another patient told this patient that it
would be less painful that cannulation of the fistula. the best response is to - ✔✔advise
the patient that cannulating an aneurysm may result i rupture.
✔✔a patient experience a cardiac arrest with no pulse or respiration during
hemodialysis. after the technician calls for help, the next action should be to - ✔✔stop
dialysis, return blood, and flush access lines with normal saline.
✔✔when auscultating a patient's AV fistula to listen for the bruit, if the technician notes
that the bruit is very high pitched, this may indicate - ✔✔stenosis
✔✔when using the buttonhole technique for vascular access for hemodialysis, the
needles are placed in. - ✔✔the same site in a fistula
, ✔✔when inserting a needle for hemodialysis, which of the following increases the risk of
infiltration? - ✔✔rotating the needle 180 degrees
✔✔the legal document that assigns a heal care proxy to make decisions in the event
that a person is unable to do so is called - ✔✔durable power of attorney
✔✔carbon filters in the water system are necessary to remove - ✔✔chlorine,
chloramine, and organic material
✔✔backwashing to free residue from sediment filters in the water system should be
done at least - ✔✔once daily
✔✔with the formula for urea kinetic modeling (UKM), the K in the Kt/V formula stands
for - ✔✔urea clearance (mL/ min) plus residual urinary output
✔✔when inserting needles into a graft for hemodialysis, the needle tips be should be at
least how far apart? - ✔✔2.0 inches
✔✔if a patient is undergoing hemodialysis and the technician notes that a bloodlines
has separated and blood has pooled beneath the access site, the first intervention
should be to - ✔✔stop the blood pump
✔✔during hemodialysis, the technician would expect a patient's temperature to rise by
about. - ✔✔0.5 C
✔✔approximately what percentage of the total blood volume circulate in the veins? -
✔✔65% to 80%
✔✔patient should be advised to avoid eating during hemodialysis because ingestion of
food may result in - ✔✔hypotension
✔✔prior to using a reprocessed dialyzer, a recirculating rinse with NS should be
completed with recirculating flow rate through the blood compartment and the dialysate
compartment of at least. - ✔✔200 mL/min for BFR and 200 mL/ min for DFR.
✔✔if a hemodialysis patient test positive for hepatitis C virus (HCV), which of the
following interventions does the KDIGO guidelines recommend when proving
hemodialysis treatment? - ✔✔adherence to strict infection-control procedures
✔✔if a dialyzer is to be reprocessed in 3 hours, the dialyzer must be - ✔✔refrigerated
SOLUTIONS GUARANTEE A+
✔✔with buttonhole access sites, what should the technician do to prevent '' hubbing " ?
- ✔✔leave 1/16 th to 1/8 inch of the needle exposed
✔✔if a patient has a dialyzer clearance rate of 250 mL/ min with 4- hour treatment, the
total volume of blood cleared is - ✔✔60 L.
✔✔what is the most important factor in preventing exsanguination from dialysis line
separation? - ✔✔access site visible
✔✔if a patient states that she has been skipping lunch because she is too tired to eat
after dialysis, the best solution is to. - ✔✔report to the nurse and renal dietician
✔✔if a patient exhibits signs and symptoms of hemolysis during dialysis, the immediate
action should be to - ✔✔stops the blood pump and clamp the blood lines
✔✔the amount of dialysis that a hemodialysis patient is prescribed is based on the
removal of - ✔✔urea
✔✔maturation of a prosthetic arteriovenous graft usually takes - ✔✔3 to 6 weeks
✔✔the purpose of the negative germicide test is to ensure that - ✔✔the reprocessed
dialyzer is free of germicides
✔✔if a patient develops angina (chest pain) radiating to the neck, jaw, and left arm and
the patient's blood pressure drops during treatment, the technician should notify the
nurse and - ✔✔decreased blood flow rate and ultrafiltration
✔✔the technician is reinforcing a patient's training regarding management of fluid
intake. the patient, who still urinates, has a base of 1000 ml intake per day. if the patient
urinates 500 ml in a 24-hour period , how much fluid is the patient allowed the following
day? - ✔✔1500ml
✔✔the greatest risk of bacteremia (infection in the blood) is associated with which type
of vascular access? - ✔✔dialysis catheter
✔✔the external surface of the hemodialysis machine should be cleaned and disinfected
at least. - ✔✔after every patient
✔✔when checking the water temperature in the system, the technician records the
temperature at 78 F (25.5 C). in order for the reverse osmosis (RO) equipment that is
,partof the water treatment system to work properly, the water temperature must be
maintained at - ✔✔77' F to 82'F ( 25' C to 28'C )
✔✔when testing the chlorine levels in the water system, the water sample should be
taken from the. - ✔✔first carbon tank
✔✔when considering the chain of infection, the three most common reservoirs of
interest include humans, environment and - ✔✔animals
✔✔a solution is a mixture of - ✔✔solute and solvent
✔✔when reinforcing education about weight gain, a patient should be advised that the
usual goal for interdialytic weight gain is less than - ✔✔1.0 kg/d
✔✔if a high-pressure alarm for arterial pressure (pre-pum ) sounds during hemodialysis,
this could indicate. - ✔✔drop in speed of blood pump
✔✔if a low- pressure alarm for venous sounds during hemodialysis, this could indicate. -
✔✔clotting in the access
✔✔according to KDOQI guidelines, when administering hemodialysis to a patient a,
facemark should be worn - ✔✔for all access connection
✔✔the most common complication associated with poor needle site rotation in a graft is
- ✔✔pseudoaneurysm
✔✔in hemodialysis, ultrafiltration refers to extraction of - ✔✔fluid
✔✔the patient has develop a small aneurysm and asks the technician to cannulate the
aneurysm for the hemodialysis treatment because another patient told this patient that it
would be less painful that cannulation of the fistula. the best response is to - ✔✔advise
the patient that cannulating an aneurysm may result i rupture.
✔✔a patient experience a cardiac arrest with no pulse or respiration during
hemodialysis. after the technician calls for help, the next action should be to - ✔✔stop
dialysis, return blood, and flush access lines with normal saline.
✔✔when auscultating a patient's AV fistula to listen for the bruit, if the technician notes
that the bruit is very high pitched, this may indicate - ✔✔stenosis
✔✔when using the buttonhole technique for vascular access for hemodialysis, the
needles are placed in. - ✔✔the same site in a fistula
, ✔✔when inserting a needle for hemodialysis, which of the following increases the risk of
infiltration? - ✔✔rotating the needle 180 degrees
✔✔the legal document that assigns a heal care proxy to make decisions in the event
that a person is unable to do so is called - ✔✔durable power of attorney
✔✔carbon filters in the water system are necessary to remove - ✔✔chlorine,
chloramine, and organic material
✔✔backwashing to free residue from sediment filters in the water system should be
done at least - ✔✔once daily
✔✔with the formula for urea kinetic modeling (UKM), the K in the Kt/V formula stands
for - ✔✔urea clearance (mL/ min) plus residual urinary output
✔✔when inserting needles into a graft for hemodialysis, the needle tips be should be at
least how far apart? - ✔✔2.0 inches
✔✔if a patient is undergoing hemodialysis and the technician notes that a bloodlines
has separated and blood has pooled beneath the access site, the first intervention
should be to - ✔✔stop the blood pump
✔✔during hemodialysis, the technician would expect a patient's temperature to rise by
about. - ✔✔0.5 C
✔✔approximately what percentage of the total blood volume circulate in the veins? -
✔✔65% to 80%
✔✔patient should be advised to avoid eating during hemodialysis because ingestion of
food may result in - ✔✔hypotension
✔✔prior to using a reprocessed dialyzer, a recirculating rinse with NS should be
completed with recirculating flow rate through the blood compartment and the dialysate
compartment of at least. - ✔✔200 mL/min for BFR and 200 mL/ min for DFR.
✔✔if a hemodialysis patient test positive for hepatitis C virus (HCV), which of the
following interventions does the KDIGO guidelines recommend when proving
hemodialysis treatment? - ✔✔adherence to strict infection-control procedures
✔✔if a dialyzer is to be reprocessed in 3 hours, the dialyzer must be - ✔✔refrigerated
