Free CCHT Technical and Environment Test 2

Question 1

The reason potassium dialyzes and RBCs do not is:

Accepted Answer

potassium has a smaller molecular weight

Answer

potassium has a larger molecular weight

Answer

RBCs are not water-soluble

Answer

RBCs have a negative charge

Question 2

Acceptable limits for total chlorines in water for hemodialysis are?

Accepted Answer

less than 0 .1mg/L (ppm)

Answer

0.5 mg/L to 1 mg/L(ppm)

Answer

3.5 mg/L to 5.5 mg/L to 5.5 mg/L(ppm)

Answer

greater than 6.0 mg/L(ppm)

Question 3

The following are factors in poor clearance during dialysis except:

Accepted Answer

low hematocrit

Answer

poor dialyzer reuse

Answer

access recirculation

Answer

low blood flow rate

Question 4

The movement of water from an area of low solute concentration to an area of high solute concentration is called:

Accepted Answer

osmosis

Answer

diffusion

Answer

ultrafiltration

Answer

dialysis

Question 5

Potting compound, casing, fibers, and headers are part of a:

Accepted Answer

dialyzer

Answer

dialysis machine

Answer

water treatment system

Answer

R.O. system

Question 6

A hematocrit test indicates which of the following?

Accepted Answer

Concentration of red blood cells in the blood

Answer

Concentration of platelets

Answer

Concentration of creatinine in the blood

Answer

Concentration of white blood cells in the blood

Question 7

In a dialysis machine, the proportioning system does what?

Accepted Answer

Appropriately mix the dialysate concentrates with water

Answer

Prepare the dialysate to the proper pH

Answer

Warm the dialysate to the proper temperature

Answer

To monitor the dialysate flow rate

Question 8

The complication in which blood has a "cherry pop" appearance is:

Accepted Answer

hemolysis

Answer

blood leak

Answer

air embolism

Answer

None of the above

Question 9

The use of high sodium dialysate may predispose a patient to:

Accepted Answer

All of the above

Answer

fluid overload

Answer

hypertension

Answer

thirst

Question 10

The capability of a dialyzer to remove fluid, expressed as ml/mmHg/hr is:

Accepted Answer

UF Coefficient

Answer

clearance

Answer

surface area

Answer

priming volume