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CCHT PRACTICE EXAM 1B QUESTIONS AND ANSWERS 2023 100% CORRECT 2023
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CCHT PRACTICE EXAM 1BTrue or False: Peritoneal dialysis (PD) differs from hemodialysis in that PD access is by
an intra-abdominal catheter - answer TRUE
The term :sieving coefficient of a membrane" refers to the:
a. fraction of solute that passes through the membrane by convection
b. amount of water required for solute drag through the membrane
c. concentration of pores in the membrane
d. seize of the pores in the membrane - answer a. fraction of solute that passes
through the membrane by convection
Water moves from one body compartment to another by:
a. ultrafiltration
b. active transport
c. osmotic forces
d. all of the above - answer c. osmotic forces
Which of the following will set off the prepump high-pressure alarm?
a. an increase in the blood pump speed
b. kinking of the arterial bloodline
c. a decrease in the blood pump speed
d. infiltration of the arterial needle - answer c. a decrease in the blood pump speed
A low-pressure alarm in the venous (postdialyzer) line is likely to be set off by:
a. a blockage in the blood tubing between the monitoring site and the venous needle
b. an infiltration of the venous needle
c. a clot in the venous access
d. a blockage in the blood tubing before the monitoring site - answer d. a blockage in
the blood tubing before the monitoring site
Which of the following statements about an air detector is correct?
a. it is present in the predialyzer blood tubing
b. it uses an ultrasonic device to detect air in the blood path
c. it sets off an alarm and clamps the predialyzer blood tubing
d. all of the above statements are correct - answer b. it uses an ultrasonic device to
detect air in the blood path
How is the anticoagulant heparin given during the dialysis treatment?
a. intermittently
b. as a single bolus
c. by continuous infusion
, d. by all of the above ways - answer d. by all of the fabove ways
The main difference between an arteriovenous shunt (AVS) and an arteriovenous fistula
(AVF) is... - answer AVF is entirely within the arm
Biocompatibility is best illustrated by:
a. synthetic membranes that do not absorb blood proteins as well as cellulose
membranes
b. independence from protein adsorption of the membrane
c. reprocessed dialyzers that have a lower biocompatibility than new ones
d. reprocessed dialyzers that have a better biocompatibility than new ones - answer
d. reprocessed dialyzers that have a better biocompatibility than new ones
The amount of fluid to be taken from the patient during hemodialysis:
a. is independent of the filtration pressure
b. requires the dialysate to have a higher pressure than the blood
c. may be calculated by subtracting the patient's estimated dry weight from the
predialysis weight and adding any fluid the patient receives during treatment
d. may be calculated by adding the patient's predialysis weight and the amount of fluid
the patient receives during treatment - answer c. may be calculated by subtracting
the patient's estimated dry weight from the predialysis weight and adding any fluid the
patient receives during treatment
The ultra filtration coefficient of a dialyzer refers to the:
a. fluid that passes through the membrane in 1 hour
b. pressure in the blood compartment needed to force fluid through the membrane
c. pressure difference across the membrane
d. fluid that passes through the membrane in 1 minute - answer a fluid that passes
through the membrane in 1 hour
A sorbent is best described as a:
a. material that moisturizes the dialysis membrane
b. material that is added to the dialysate to buffer it and keep the pH constant
c. continuous dialysate disinfection system that removes bacteria and endotoxins
d. type of electronic device that measures blood pressure - answer c. continuous
dialysate disinfection system that removes bacteria and endotoxins
Which of the following statements about sorbent dialysis is correct?
a. it needs a continuous supply of fresh water to add to new dialysate
b. in preparing the dialysate, 6 liters of water are added to premixed chemicals
c. the duration of the dialysis procedure cannot be altered
d. it requires a six-layered cartridge - answer b. in preparing the dialysate, 6 liters of
water are added to premixed chemicals
Which dialyzer is used currently? - answer Hollow tube
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