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NNCC CCHT PRACTICE QUESTIONS AND ANSWERS
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NNCC CCHT PRACTICE QUESTIONS AND ANSWERS
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NNCC CCHT PRACTICE QUESTIONS AND ANSWERSPeritoneal dialysis differs from hemodialysis in which of the following ways?
A. PD requires both vascular access and abdominal access.
B. PD cannot be done at home
C. PD access is by an intra-abdominal catheter
D. Sterile dialysate is not require for PD - Answers -C
The main difference between an arteriovenous shunt (AVS) and an arteriovenous fistula
(AVF) is:
A. AVS is entirely within the arm
B. AVF is entirely within the arm
C. AVF is more likely to become clotted or infected
D. AVF requires an external tube - Answers -B
Which of the following dialyzers is used currently?
a. Kiil
B. flat plate
c. coil
d. hollow tube - Answers -D
Which of the following kidney structures connects with and delivers urine directly to the
ureter?
a. pelvis
b, calyx
c, glomerulus
d. cortex - Answers -A
The glomerular filtration rate is an important index of renal function and in the normal
adult is approximately:
a. 50 ml/nib/1.73 m2
b. 75 ml/min/1.73 m 2
c. 125 mL/min/1,73m2
d. 200 ml/ min/ 1.73m2 - Answers -C
In hemodialysis, blood and sialysate have which of the following properties?
a. They flow in the same direction
b. they flow in opposite directions
c. they mix within the dialyzer
d. they do not require a semipermeable membrane - Answers -B
In the dialyzer water may be removed from
a. the intracellular compartment
b. the intravascular compartment
c. the interstitial compartment
, d. all of the above - Answers -B
Which site in the hemodialysis pathway has the highest positive pressure?
a. arterial blood in the afferent tubing
b. blood entering the dialyzer fibers
c. blood leaving the dialyzer fibers
d. blood in the venous return - Answers -B
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. size of the pores in the membrane - Answers -A
Water moves from one body compartment to another by:
a. ultrafiltration
b. active transport
c. osmotic forces
d. all of the above - Answers -C
Biocompatibility is best illustrated by:
a. synthetic membranes that do not absorb blood proteins as well as cellulose
membranes
b. independence from protein absorption 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 - Answers -D
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 patients estimated dry weight from the
predialysis weight and adding any fluid
d. may be calculated by adding the patient's predialysis weight - Answers -C
The ultrafiltration coefficient of a dialyzer refers to the:
a. fluid 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 min - Answers -A
The molecular weight cutoff of a dialyzer is 12,000 daltons. Which of the following
molecules would not pass through the membrane into the dialysate?
a. phosphate
b. urea
c. albumin
d. sodium - Answers -C
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