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CCHT Practice Exam Questions and
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AAMI Chemical Analysis of water used for hemodialysis is tested ✔✔annually
A dialysis technician observes a drop of blood on the surface of a patient's hemodialysis machine. Which of these actions should the dialysis technician take? ✔✔Clean the machine surface immediately
A dialysis technician observes all of the below on the treatment floor, which one poses an environment risk? ✔✔About one ounce (30 ml) fluid is on the floor
A fistula connects ✔✔An artery to a vein
A marker used to determine the middle molecule clearance of a dialyzer is ✔✔Vitamin B
A mixed- bed DI tank contains ✔✔Cations and anions
A nephron is made up of ✔✔A glomerulus and a tubule system
A patient complains of pain at the venous needle site. The dialysis technician observes there is swelling distal to the venous needle site and that the venous pressure is rising. The dialysis technician should suspect ✔✔An infiltration
A patient who is to receive their first dialysis treatment is prone to? ✔✔Dialysis Disequilibrium Syndrome
A patient tells the technician that the dietician reviewed high potassium foods with her. During the conversation she states she routinely eats the following foods. Which one is highest in potassium? ✔✔bananas
A reason why a dialysis technician is to be certified is ✔✔It's a new Federal regulation
A rise in transmembrane pressure in a low flux dialyzer during hemodialysis is indicative of ✔✔Clotting of extracorporeal circuit
A teammate asks you to document the normal saline he just gave to Mr. Smith. You would: ✔✔Never document something that someone else did
According to the new Conditions for Coverage, all dialysis technicians are to be certified by a national certifying agency or state specific certification by: ✔✔4/15/
Albumin is an important test that tells about the patient's ✔✔Nutritional
All of the following are phosphate binders except: ✔✔Vitamin B
All of the following may be signs and symptoms of an infected access except: ✔✔numbness and tingling
Asepsis is defined as ✔✔The absence of disease producing organisms
Based on Mrs Smith's total amount of fluid to be removed, what is the ultrafiltration rate per hour (mL/hr) for her 4 hour treatment? ✔✔1,385 mL/hr
Before a hemodialysis treatment, the technician removes the cap from the fistula needle and accidentally touches the chair with the tip of the needle. Which of these actions should the technician take first? ✔✔Discard the needle
Dialysate that is too hot will cause ✔✔Hemolysis
Dry weight is defined as the ✔✔Weight at which the patient has no edema or fluid in the lungs and BP is normal
During a hemodialysis treatment the technician responds to a low venous pressure alarm. The most likely cause for this alarm is: ✔✔Disconnection of the bloodline
Biohazardous waste includes any material exposed to: ✔✔Blood
Decreasing the patient's prescribed blood flow rate affects the rate of ✔✔Diffusion
During a hemodialysis treatment, a patient's venous needle infiltrates. Which of these actions should the dialysis technician take first? ✔✔Stop the pump
Dialysate pH should be: ✔✔Between 7.0 and 7.
Feed conductivity- product conductivity divided by x 100 is the formula calculation of ✔✔Percent rejection
Fluid to be removed divided by the treatment time tells us ✔✔The ultrafiltration rate
Germicide rebound occurs due to: ✔✔Inadequate dialyzer priming
Hives, itching, tightness of the chest and respiratory distress may be signs and symptoms of: ✔✔Anaphylaxis (severe allergic reaction)
Hyperkalemia can lead to ✔✔Cardiac arrest
If the extracorporeal circuit clots and it must be discarded, it would be most important to monitor the patient's serum level of: ✔✔Hemoglobin
In reuse, the blood path integrity is tested to ✔✔Check dialyzer for total cell volume
Lidocaine is administered ✔✔Subcutaneous
Low albumin levels in the dialysis patient have been linked with: ✔✔Higher hospitalization and death rates
Medications that dialyze easily are all except ✔✔Digoxin
Mr. Jones demonstrates how to wash his aces. This is an example of which adult learning principle? ✔✔Psychomotor
Mr. Jones suffers from constipation. He goes to the drug store to buy a laxative. Mr Jones should avoid which medication? ✔✔Milk of Magnesia
Mr. Roberts verbalized how to hand crank his blood pump in the event of an emergency. This is an example of which adult principle? ✔✔Cognitive
Mrs. Smith arrives for dialysis treatment complaining of shortness of breath. Her pre dialysis weight is 4.7 kilograms above the last post treatment weight. The dialysis technician reweighed
One cause of aneurysms and pseudoaneurysms is ✔✔Poor rotation of sites
The air detector alarms during treatment. If the machine is working properly, the dialysis technician should expect which of these events to have occurred? ✔✔Blood pump has stopped
Pain at the venous needle site, along with respiratory difficulty and chest pain could be an indicator of: ✔✔Sterilant infusion
One sign and symptom of fluid overload is ✔✔Hypertension
Solutions that have a higher similarity than body fluids are called? ✔✔Hypo-osmole
Symptoms of hyperkalemia (high potassium) may include ✔✔Numbness and tingling
The accuracy of lab results depends on adherence to proper lab draw technique. You must ensure that labs are drawn: ✔✔Before treatment, after treatment, and after giving heparin
Short frequent hemodialysis treatments in patient's with high BUN (blood Urea Nitrogen) are performed to prevent: ✔✔Dialysis Disequilibrium Syndrome
Prior cannulation a technician notices the skin over the patient's fistula is reddened and warm to touch. These symptoms are most likely due to: ✔✔An infection
A medication used to treat anemia is ✔✔Epogen
The most important monitor in the dialysis setting is: ✔✔Teammate
The most frequent cause of death in the first year post transplant is: ✔✔Infection
The normal range of resting respirations in an adult is ✔✔12-20 breaths per min
The leading cause of chronic kidney disease for adults in the United States: ✔✔Diabetes
The minimum dwell time to achieve sterilization with the chemical Renalin is ✔✔24 hours
The most important member of the patient care team is the ✔✔Patient
The medication used to improve calcium absorption is: ✔✔Zemplar
The minimum amount of experience required to take the NNCC certifying exam is: ✔✔6 months
The usual fluid allowance for a person with kidney failure is ✔✔1.0 to 1.5 liters per day
The organization that sets the standards for dialysis water quality is called ✔✔AAMI
Total cell volume (TCV) is an indirect measure of the: ✔✔Performance of the dialyzer
Total chlorine levels in the water are tested ✔✔Before each patient shift or every four hours
The purpose of using counter-current flow is to ✔✔Increase the rate of waste removal
Water moves across a membrane from an area of lower solute concentration to an area of higher solute concentration by which principle ✔✔Osmosis
The water softener ✔✔Operates on the principle of ion exchange
The TCV should be no less than ✔✔80%
What are the typical signs of fluid overload ✔✔Edema and shortness of breath
To determine the latency of an arteriovenous vascular access, the dialysis technician should initially feel for the presence of ✔✔A thrill
Ultrafiltration is influenced by ✔✔Transmembrane pressure
Waste products are removed during dialysis by which principle ✔✔Diffusion
The water softener removes ✔✔Calcium and magnesium
The reprocessed dialyzer is carefully rinsed prior to patient use to remove ✔✔Residual Sterilant
What lab tests are used to monitor anemia in the ESRD patient? ✔✔Hemoglobin/Hematocrit
Which learning domain is knowledge based? ✔✔Cognitive
Which of the following is the classic sign of hemolysis? ✔✔Cranberry juice colored blood in the venous line
Which food below is highest in phosphorus? ✔✔Ice Cream
When fluid replacement is necessary during the hemodialysis treatment, which of the following solutions is used? ✔✔O.9% normal saline
Which of the following is not a symptom of uremia? ✔✔Elevated hematocrit
Which of the following is a cause of hypotension during and after dialysis treatments? ✔✔Removing too much fluid
Which of the following is considered to be safe water for dialysis? ✔✔Dialysis quality water
Which of the following is the largest needle? ✔✔18 gauge
Which of the following actions would increase diffusion during dialysis? ✔✔Using a bath that will provide a greater concentration gradient
Which of the following diffuses from the patient's blood during dialysis? ✔✔Urea
What is the most important activity that the dialysis technician can perform to prevent the spread of infectious disease in the dialysis clinic? ✔✔Handwashing
When cannulating. The tips of the needles should be at least ✔✔2.0 inches apart
Which of the following symptoms would indicate a need to increase the estimated dry weight (EDW)? ✔✔Hypotension and cramping
Your patient is to receive 2000 units of heparin. The vial you are using is 1000 u/ml heparin. How many mls will you draw up for this patient? ✔✔2.
You have documented incorrectly on a patient's chart. How do you correct this? ✔✔Draw one line through it, date, time, signature/credentials, with the words "error"
What's the normal lab value? ✔✔Phosphorus, potassium, and calcium
What is diffusion? ✔✔The movement of particles across a semipermeable membrane from an area of higher solute concentration to an area of lower solute concentration, until the concentration on both sides of the membrane is equal
What is filtration? ✔✔The process of passing fluid through a filter or semipermeable membrane
What is epogen? ✔✔A medication(synthetic erythropoietin) used to stimulate production of red blood cells
How long can a used dialyzer sit out before reprocessing? ✔✔2 hours
How long can a reprocessed dialyzer sit out to dry before use? ✔✔11 hours
What is a reused dialyzer shelf life? ✔✔14 days
What is a reuse dialyzer (TCV) percentage ✔✔80%
What does AAMI stand for? ✔✔Association for the Advancement of Medical Instrumentation
The base used to maintain an acceptable dialysate pH(acid/base balance). A buffer ✔✔Bicarbonate
What is BUN? ✔✔Blood urea nitrogen, the end product of protein metabolism
What is a aneurysm? ✔✔A ballooning of the AV fistula, sometimes caused by improper rotation of needle sites
An irregular heart beat ✔✔dysrhythmia
Difficulty breathing ✔✔Dyspnea
