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University of North Carolina
(Chapel Hill)
NHA Certified Hemodialysis Technician (CHT)
Certification
NHA CHT Certification Exam
Course Title and Number: NHA CHT Certification Exam Exam Title: NHA CHT Certification Exam Exam Date: Exam 2024- 2025 Instructor: [Insert Instructor’s Name] Student Name: [Insert Student’s Name] Student ID: [Insert Student ID]
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180 minutes
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NHA Certified Hemodialysis Technician
(CHT) Certification
NHA CHT Certification Exam Questions and
Answers | 100% Pass Guaranteed | Graded
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Read All Instructions Carefully and Answer All the Questions Correctly Good Luck: - True/False Dialysis is so complex, that an entire team is required to meet the patient's needs. - =Answer>> True The level of saturation rate in liquid is determined by how much solute can be dissolved is called what? - =Answer>> Concentration In dialysis, solubility is defined as? - =Answer>> How well a solid will dissolve in a solvent A fistula is autogenous, what does this mean? - =Answer>> It is made from the patient's own blood vessels The proper balance of fluid and chemicals in the body is called what? - =Answer>> Homeostasis Each dialyzer has a blood and a dialysate compartment, which of these compartments is the compartment that is around the outsides of the fibers? - =Answer>> Dialysate Compartment Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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waiting for a fistula to mature, a patient with acute renal failure, a patient waiting for a peritoneal dialysis catheter Which of the following statements about arteriovenous grafts is correct: - =Answer>> They are more prone to thrombosis than arteriovenous fistulae Care a new arteriovenous fistula should include all of the following except: - =Answer>> cannulating the vessel to see if the blood flow is adequate An antiseptic that kills bacteria when wet is: - =Answer>> 70% alcohol Which of the following arteries is most commonly used for an arteriovenous fistula? - =Answer>> Radial artery The Hemodialysis technician who is about to insert a needle into the AVF should first do all of the following except - =Answer>> Place the needle into previous cannulating spot During needle insertion it is important for the hemodialysis technician to always: - =Answer>> cannulate the venous access in an antegrade manner (with the blood flow) Using the buttonhole technique for blood access, the technician should: - =Answer>> use a sharp following by a blunt need To diminish vasovagal reactions and needle phobia in the dialysis patient, the technician should ask the Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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patient to: - =Answer>> lie down in a recumbent position, tense the muscles in the nonaccess hand for 10- seconds during needle insertion, cannualte his or her own vessels Recirculation refers to: - =Answer>> mixing dialyzed venous blood with blood entering the arterial needle A diabetic patient undergoing dialysis complains of tingling, numbing, and cold in the hand below the access site. The most likely cause is: - =Answer>> Steal syndrome Common sites of stenosis in patients with an arteriovenous fistula include all the following EXCEPT: - =Answer>> the artery next to the anastomosis A thrombosis is LEAST likely to develop with which of the following vascular access methods? - =Answer>> An arteriovenous fistula High-output cardiac failure is a complication of arteriovenous fistula or grafting. All of the following actions are a part of this condition EXCEPT: - =Answer>> decreased cardiac workload Which of the following statements about grafts used for arteriovenous shunts for dialysis patients is correct? - =Answer>> They can be made collagen or expanded polytetrafluoroethylene When placing a needle into a graft, a hemodialysis technician may do which of the following? - =Answer>> use three sides to cannulate the graft, not just the top Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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How do you calculate the fluid to be taken from the patient during hemodialysis? - =Answer>> Subtracting the estimated dry weight from the predialysis weight and adding any extra fluid received during treatment. What substance is not produced by the kidney; a. renin b. aldosterone c. erythropoietin d. calcitriol - =Answer>> b. aldosterone What percent of transplanted kidneys is functional one year after transplantation? - =Answer>> 90% What is the main difference between an ateriovenous shunt (AVS) and an ateriovenous fistula (AVF)? - =Answer>> AVF is entirely within the arm Blood tests for ferrtin are performed in hemodialysis patients why? - =Answer>> To check for iron stores True/False Dialysis does not remove water-soluble vitamins. - =Answer>> False What is the glomerular filtration rate in the normal adult? - =Answer>> 125mL/min/1.73m What phosphate binders would best control hyperphosphatemia with the fewest side effects in patients with end stage kidney disease (ESRD)? - =Answer>> Lanthanum carbonate are preferred because there is less toxicity Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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What is the most likely cause of post-renal failure? - =Answer>> Benign Prostatic Hypertrophy What is sodium modeling? - =Answer>> Changing the concentration of the dialysis sodium during the course of dialysis What does "sieving coefficient of the membrane" mean? - =Answer>> Faction of the solute that passes through the membrane by convection What is the fluid restriction for patients undergoing in- center hemodialysis? - =Answer>> 1 L. (4-cups) Failure to excrete beta2-microglobulin in patients with kidney failure predisposes to? - =Answer>> Amyloidosis A disadvantage of high-flux dialysis is what? - =Answer>> Pyrogen reactions are common What pattern of blood chemistries would you expect in renal osteodystrophy? - =Answer>> Low calcium and high phosphate levels What is osmosis? - =Answer>> Diffusion of solvent through a semipermeable membrane from low-to-high solute concentration Which properties does blood and dialysate have in hemodialysis? - =Answer>> They flow in opposite directions Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Water moves from one body compartment to another by - =Answer>> Osmotic forces Biocompatibility is best illustrated by - =Answer>> Reprocessed dialyzers that have a better biocompatible then new ones The amount of fluid to be taken from the patient during hemodialysis: - =Answer>> May be calculated by subtracting the estimated dry weight from the predialysis weight and adding any fluid received during treatment. The ultrafiltration coefficients of a dialyzer refers to the:
- =Answer>> The fluid that passes through the membrane in one hour. True or False: Albumin molecules will not pass through the dialyzer membrane into the dialysate? - =Answer>> True Clearance of low-molecular-weight molecules by dialysis is accomplished mostly by - =Answer>> Diffusion What properties does a hollow fiber dialyzer contain? - =Answer>> Very fine fiber tubes held in place by polyurethane material Synthetic membranes have which of the following properties? a. They are cellulose membranes in which hydroxyl groups are replaced with acetate. b. They have thick fiber walls. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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c. They have poor adsorption. d. They remove solute by diffusion only. - =Answer>> B. They have thick fiber walls. If a dialyzer has a urea clearance rate(K) of 200mL/min and a blood flow rate(Qb) of 300 mL/min, what volume of the blood will be cleared of urea in 1min? a. 100 mL b. 200mL c. 300mL d. 500mL - =Answer>> B. 200mL To determine the most accurate clearance rate of a particular solute, one should: a. Use water instead of blood? b. Reduce the manufacturer's stated rate by 10% c. Measure the solute concentrations of blood going into and out of the dialyzer - =Answer>> C. Measure the solute concentration of blood going into and out of the dialyzer. True or False. Phosphate is added to dialysate? - =Answer>> False. Bicarbonate, Chloride and Sodium are substances added to dialysate. Sodium modeling refers to: a. Changing the concentration of the dialysate sodium during the course of dialysis. b. Injecting sodium chloride directly into the patients vein. c.adjusting the sodium concentrate of the dialysate with normal saline. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Peritoneal Dialysis differs from hemodialysis in which of the following? - =Answer>> PD access is by an intra- abdomial catheter. The main difference between an arteriovenous shunt (AVS) and an arteriovenous fistula( AVF) is an: - =Answer>> AVF is entirely within the arm Which of the following dialyzers is used currently? - =Answer>> Hollow tube Which of the kidney structures connects with and delivers urine directly to the ureter? - =Answer>> Pelvis The glomerular filtration rate(GFR) is an important index of renal function and in the normal adult is approximately: - =Answer>> 125mL/min/1.73m All of the following substances are produced by Kidney except: - =Answer>> Aldosterone The most likely cause of post renal failure is: - =Answer>> Benign prostatic hypertrophy The most common cause of chronic kidney disease in the United States is - =Answer>> Diabetes Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Which of the following conditions is least likely to cause uremia? - =Answer>> Urinary tract infection All of the following conditions are associated with chronic kidney failure except: - =Answer>> Hypo parathyroidism What percentage of transplanted kidneys are functional 1 year after transplantation? - =Answer>> 90% Which hemodialysis schedule is likely to be most efficient? - =Answer>> Short daily home hemodialysis, 2- hours a session, 5-7 days a week The fluid restriction for most patients undergoing in center hemodialysis is equal to urine volume/ day plus - =Answer>> 1 liter Failure to excrete beta2 - microglobulin in patients with kidney failure predisposes the patient to: - =Answer>> Amyloidosis Blood test for ferritin are performed in hemodialysis patients - =Answer>> To check for iron stores Which of the following phosphate blinders would best control hyperphosphatemia with the fewest side effects Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Biocompatibility is best illustrated by - =Answer>> Reprocessed dialyzers that have a better biocompatibility than new ones The amount of fluid to be taken from the patient during hemodialysis - =Answer>> May be calculated by subtracting the patients estimated dry weight from the pre dialysis weight and adding any fluid the patient receives during treatment. The ultrafiltration coefficient of a dialyzer refers to the - =Answer>> Fluid that passes through the membrane in 1 hour The molecular weight cutoff of a dialyzer is 12, daltons. Which of the following molecules would not pass through the membrane into the dialysate? - =Answer>> Albumin Clearance of low- molecular- weight molecules by dialysis is accomplished mostly by - =Answer>> Diffusion A hollow fiber dialyzer has which of the following properties? - =Answer>> Very fine fiber tubes held in place by polyurethane material Synthetic membranes have which of the following properties? - =Answer>> They have thick fiber walls Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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If a dialyzer has a urea clearance rate (K) of 200 ml/min and a blood flow rate (Qb) of 200 ml/min, what volume of the blood will be cleared of urea in 1 minute? - =Answer>> 200mL To determine the most accurate clearance rate of a particular solute, one should: - =Answer>> Measure the solute concentrations of blood going into and out of the dialyzer. All of the following substances are added to the dialysate except: - =Answer>> Phosphate Sodium modeling refers to: - =Answer>> Changing the concentration of the dialysate sodium during the course of dialysis Conductivity is best defined as: - =Answer>> A method of checking electrolyte levels in the dialysate Which of the following statements about the proportioning system is correct? - =Answer>> It relies on a continuous supply of fresh concentrate and treated water. An advantage of high-flux dialysis is: - =Answer>> Fast removal of fluid Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Drip chambers in the extracorporeal circulation do all the following EXCEPT: - =Answer>> Pump blood into the dialyzer Which of the following statements about extracorporeal circulation is correct - =Answer>> approximately 100- ml are outside the patient's body at any time Which of the following statements about transducer protectors is correct - =Answer>> They use hydrophobic membranes to keep fluid from passing through Blood flow into the dialyzer is usually: - =Answer>> done by manual hand cranking Which pressure in the dialysis circuit is usually negative? - =Answer>> arterial pressure Which of the following will set off the pre- pump high- pressure alarm? - =Answer>> a decrease in the blood pump speed A low- pressure alarm in the venous (post dialyzer) line is likely to be set off by - =Answer>> A blockage in the blood tubing before the monitoring site Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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Which of the following statements about an air detector is correct? - =Answer>> it uses an ultrasonic device to detect air in the blood path How is the anticoagulant heparin given during the dialysis treatment? - =Answer>> intermittently, as a single bolus, by continuous infusion A sorbent is best described as a: - =Answer>> continuous dialysate disinfection system that removes bacteria and endotoxins Which of the following statements about sorbent dialysis is correct? - =Answer>> In preparing the dialysate, 6 liters of water are added to premixed chemicals Which type of arteriovenous fistula is likely to result in high blood flow with the fewest complications? - =Answer>> artery side to vein end For which type of dialysis patient is a central venous catheter blood access appropriate? - =Answer>> A patient waiting for a fistula to mature, a patient with acute renal failure, a patient waiting for a peritoneal dialysis catheter Which of the following statements about arteriovenous grafts is correct: - =Answer>> They are more prone to thrombosis than arteriovenous fistulae Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
