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This comprehensive resource provides a valuable set of practice questions and answers for aspiring certified hemodialysis technicians (ccht). Covering key aspects of hemodialysis, including patient care, machine operation, and safety protocols, these questions are designed to prepare candidates for the certification exam. the questions delve into various aspects of hemodialysis, such as fluid management, blood access, and potential complications. This resource is ideal for students and professionals seeking to enhance their knowledge and skills in this critical healthcare field.
Typology: Exams
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AAMI Chemical Analysis of water used for hemodialysis is tested
Clean the machine surface immediately
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?
About one ounce (30 ml) fluid is on the floor
A dialysis technician observes all of the below on the treatment floor, which one poses an environment risk?
An artery to a vein
A fistula connects
Vitamin B
A marker used to determine the middle molecule clearance of a dialyzer is
Cations and anions
A mixed- bed DI tank contains
A glomerulus and a tubule system
A nephron is made up of
An infiltration
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
Dialysis Disequilibrium Syndrome
A patient who is to receive their first dialysis treatment is prone to?
bananas
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?
It's a new Federal regulation
A reason why a dialysis technician is to be certified is
Clotting of extracorporeal circuit
AAMI standards for the total microbial count of dialysate shall not exceed:
3 - 5% of EDW
Acceptable interdialytic weight gains are
Less than two (2) EU/mL
According to AAMI the standard level for endotoxins levels is
According to the new Conditions for Coverage, all dialysis technicians are to be certified by a national certifying agency or state specific certification by:
Nutritional
Albumin is an important test that tells about the patient's
Vitamin B
All of the following are phosphate binders except:
numbness and tingling
All of the following may be signs and symptoms of an infected access except:
The absence of disease producing organisms
Asepsis is defined as
1,385 mL/hr
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?
Discard the needle
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?
Hemolysis
Dialysate that is too hot will cause
Weight at which the patient has no edema or fluid in the lungs and BP is normal
Dry weight is defined as the
Disconnection of the bloodline
During predialysis data collection, it would be best for the technician to ask the patient which of these questions?
Take the patient's temperature
During the hemodialysis treatment, a patient complains of feeling chilled. In addition to getting the patient a blanket, which of these actions should the technician take?
Notify the equipment technician
During the set up of a hemodialysis machine, the alarm test for conductivity fails. Which of these actions should the dialysis technician take?
Indicators of the adequacy of the renal replacement therapy
ESRD specific tests such as BUN, Creatinine, and URR are
Ultrafiltration
Excess fluid is forced out of the blood and into the dialysate during dialysis by which principle
Percent rejection
Feed conductivity- product conductivity divided by x 100 is the formula calculation of
The ultrafiltration rate
Fluid to be removed divided by the treatment time tells us
Inadequate dialyzer priming
Germicide rebound occurs due to:
Anaphylaxis (severe allergic reaction)
Hives, itching, tightness of the chest and respiratory distress may be signs and symptoms of:
Cardiac arrest
Hyperkalemia can lead to
Hemoglobin
If the extracorporeal circuit clots and it must be discarded, it would be most important to monitor the patient's serum level of:
Check dialyzer for total cell volume
In reuse, the blood path integrity is tested to
Subcutaneous
Lidocaine is administered
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 and verified the weight. Which of the actions should the dialysis technician take next?
5,540 mL
Mrs Smith dry weight is 62 kg. Her pretreatment weight when she came in for treatment on Monday was 67 kg. The priming saline amount is 240 mL, the rinseback amount is 200mL, fluid from medication is 100 mL, and she is not allowed any fluids during treatment. What is the total amount of fluid weight to be removed during her treatment?
Trendelenburg position on left side
Ms Foster complains of shortness of breath. While calling for the nurse the dialysis technician notices there is air in the extracorporeal circuit she/he should place Ms Foster in:
Air
One reason that normal saline is used to rinse and prime the extracorporeal circuit prior to treatment is to remove:
Normal body pH is
Time to mature
One disadvantage of a fistula is an increase in
Poor rotation of sites
One cause of aneurysms and pseudoaneurysms is
Blood pump has stopped
The air detector alarms during treatment. If the machine is working properly, the dialysis technician should expect which of these events to have occurred?
Sterilant infusion
Pain at the venous needle site, along with respiratory difficulty and chest pain could be an indicator of:
Hypertension
One sign and symptom of fluid overload is
Hypo-osmole
Solutions that have a higher similarity than body fluids are called?
Numbness and tingling
Symptoms of hyperkalemia (high potassium) may include
12 - 20 breaths per min
The normal range of resting respirations in an adult is
Diabetes
The leading cause of chronic kidney disease for adults in the United States:
24 hours
The minimum dwell time to achieve sterilization with the chemical Renalin is
Cleansing of the hands
The most important intervention to prevent the spread of infection is
Osmosis
The movement of fluid from the tissue towards a higher concentration of sodium in the blood is an example of
Nephron
The functional unit of the kidney, or the structure in the kidney that does the work, is the
Listening with a stethoscope
The bruit in a Av fistula or graft is detected by
Temperature and transmembrane pressure
The hemodialysis machine continuously monitors many parameters. Which of these parameters must be verified by an external measuring device?
The National standard, based on the KDOQI (kidney Disease Outcomes Quality Initiative) guidelines, for the Urea Reduction Rate (URR) is a ratio greater than:
Peritonitis
The most common complication in Peritoneal dialysis is:
Patient
The most important member of the patient care team is the
Zemplar
The medication used to improve calcium absorption is:
Water moves across a membrane from an area of lower solute concentration to an area of higher solute concentration by which principle
Operates on the principle of ion exchange
The water softener
The TCV should be no less than
Edema and shortness of breath
What are the typical signs of fluid overload
A thrill
To determine the latency of an arteriovenous vascular access, the dialysis technician should initially feel for the presence of
Transmembrane pressure
Ultrafiltration is influenced by
Diffusion
Waste products are removed during dialysis by which principle
Calcium and magnesium
The water softener removes
Residual Sterilant
The reprocessed dialyzer is carefully rinsed prior to patient use to remove
Endotoxin
The part of the cell wall of bacteria that, when released, can cause fever in hemodialysis patient's is:
Should point in the direction of the blood flow
The venous needle in an AV fistula
Transmembrane pressure
The total pressure that exists across the dialyzer membrane is called
Aluminum
The substance that may be added to the municipal drinking water to make it clearer is:
Ice Cream
Which food below is highest in phosphorus?
O.9% normal saline
When fluid replacement is necessary during the hemodialysis treatment, which of the following solutions is used?
Elevated hematocrit
Which of the following is not a symptom of uremia?
Removing too much fluid
Which of the following is a cause of hypotension during and after dialysis treatments?
Dialysis quality water
Which of the following is considered to be safe water for dialysis?
18 gauge
Which of the following is the largest needle?
Using a bath that will provide a greater concentration gradient
Which of the following actions would increase diffusion during dialysis?
Urea
Which of the following diffuses from the patient's blood during dialysis?
Handwashing
What is the most important activity that the dialysis technician can perform to prevent the spread of infectious disease in the dialysis clinic?
2.0 inches apart
When cannulating. The tips of the needles should be at least
Hypotension and cramping
Which of the following symptoms would indicate a need to increase the estimated dry weight (EDW)?
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?
An arteriovenous fistula