Download Hemodialysis Technician Exam Questions and Answers and more Exams Health sciences in PDF only on Docsity!
2025 CCHT EXAM/ORIGINAL 300+Qs&As|NEW UPDATE
2025 - 2026|GRADED A+
If a patient requires a blood draw for laboratory test before a hemodialysis treatment, and the laboratory has provided four vacuum tubes for the blood sample, then the technician should. ANS:->> ✅check the order of the draw If a patient is not to receive a saline prime at the beginning of the hemodialysis treatment, and the saline prime is drained into a waste container on the side of the dialysis machine, then the technician must connect the venous line to the access when blood reaches the. ANS:->> ✅venous chamber A patient is very anxious during an initial hemodialysis treatment and requires extra attention. When the treatment is completed, the patient offers a $20 tip. The technician should ANS:->> ✅politely decline the tip Which of the following statements by a hemodialysis patient suggests that the patient needs more education? ANS:->> ✅i should stay on a low protein diet. A patient's granddaughter calls the dialysis center and asks for a progress report on her father, who is a patient in the center. The technician should. ANS:->> ✅state that patient information cannot be divulged If a hematoma forms at the access site where a needle infiltrated, the usual intervention is to apply ANS:->> ✅ cold compresses Which of the following actions by a patient increases the risk of blood clots in a venous access? ANS:->> ✅ wearing a top with very tight- fitting long sleeves
The inner part of the kidney is the ANS:->> ✅ medulla A nephron is comprised of a glomerulus and a ANS:->> ✅tubule How much urine does a patient with healthy kidneys usually excrete in 24 hours? ANS:->> ✅1000 to 2000ml When removing soiled gloves, the first glove removed should be. ANS:->> ✅grasped in the opposite gloved hand Which of the following hormones is produced by the kidneys? ANS:->> ✅erythropoietin At which stages of chronic kidney disease should a patient being dialysis? - ans:->> ✅ 5 Which of the following is a genetic disorder that can lead to kidney failure? - ans:->> ✅polycystic kidney disease Which of the following complains by a patient may be an indication of uremia? ANS:->> ✅itching A patient with a right-sided radiocephalic a fistula (above the wrist) needs to have blood test in the lab for a number of different lab test. The blood should be drawn from the ANS:->> ✅left hand When setting up hemodialysis equipment, the four thing that need to be checked are [ 1 ] dialysate, [ 2] extracorporeal circuit, [ 3] dialyzer and, [ 4] ANS:->> ✅machine alarm Generally, the optimal dialysate flow rate for hemodialysis should be - ans:->> ✅1.5 to 2 times the blood flow rate
A patient has buttonhole tracts for access. After the access is cleaned and prepped for treatment, what is the next step? ANS:->> ✅use a crab picker/ aseptic tweezer to remove the scabs With buttonhole tracts, the technician should apply pressure as the needle are removed and then for ANS:->> ✅5 to 10 minutes If a buttonhole access frequently has long clots that are very difficult to remove, the most likely reason is ANS:->> ✅failure to use 2 - finger hold for needle removal A patient who had an av fistula in the forearm developed an aneurysm and has had to have a new av fistula created in the upper arm. The patient has a temporary catheter in place for dialysis until the fistula has matured. Which of the following exercise may help strengthen the av fistula? ANS:->> ✅bicep curl With buttonhole access sites, what should the technician do to prevent '' hubbing "? ANS:->> ✅ leave 1/16 th to 1/8 inch of the needle exposed If a patient has a dialyzer clearance rate of 250 ml/ min with 4- hour treatment, the total volume of blood cleared is ANS:->> ✅ 60 l. What is the most important factor in preventing exsanguination from dialysis line separation? ANS:->> ✅access site visible If a patient states that she has been skipping lunch because she is too tired to eat after dialysis, the best solution is to. ANS:->> ✅ report to the nurse and renal dietician If a patient exhibits signs and symptoms of hemolysis during dialysis, the immediate action should be to ANS:->> ✅ stops the blood pump and clamp the blood lines The amount of dialysis that a hemodialysis patient is prescribed is based on the removal of ANS:->> ✅urea Maturation of a prosthetic arteriovenous graft usually takes ANS:->> ✅ 3 to 6 weeks
The purpose of the negative germicide test is to ensure that ANS:->> ✅the reprocessed dialyzer is free of germicides If a patient develops angina (chest pain) radiating to the neck, jaw, and left arm and the patient's blood pressure drops during treatment, the technician should notify the nurse and ANS:->> ✅decreased blood flow rate and ultrafiltration The technician is reinforcing a patient's training regarding management of fluid intake. The patient, who still urinates, has a base of 1000 ml intake per Day. If the patient urinates 500 ml in a 24 - hour period , how much fluid is the patient allowed the following day? ANS:->> ✅1500ml The greatest risk of bacteremia (infection in the blood) is associated with which type of vascular access? ANS:->> ✅dialysis catheter The external surface of the hemodialysis machine should be cleaned and disinfected at least. ANS:->> ✅after every patient When checking the water temperature in the system, the technician records the temperature at 78 f (25.5 c). In order for the reverse osmosis (ro) equipment that is partof the water treatment system to work properly, the water temperature must be maintained at ANS:->> ✅77' f to 82'f ( 25' c to 28'c ) When testing the chlorine levels in the water system, the water sample should be taken from the. ANS:->> ✅first carbon tank When considering the chain of infection, the three most common reservoirs of interest include humans, environment and ANS:->> ✅animals A solution is a mixture of ANS:->> ✅solute and solvent
When inserting a needle for hemodialysis, which of the following increases the risk of infiltration? ANS:->> ✅rotating the needle 180 degrees The legal document that assigns a heal care proxy to make decisions in the event that a person is unable to do so is called ANS:->> ✅durable power of attorney Carbon filters in the water system are necessary to remove ANS:->> ✅chlorine, chloramine, and organic material Backwashing to free residue from sediment filters in the water system should be done at least ANS:->> ✅once daily With the formula for urea kinetic modeling (ukm), the k in the kt/v formula stands for ANS:->> ✅urea clearance (ml/ min) plus residual urinary output When inserting needles into a graft for hemodialysis, the needle tips be should be at least how far apart? ANS:->> ✅2.0 inches If a patient is undergoing hemodialysis and the technician notes that a bloodlines has separated and blood has pooled beneath the access site, the first intervention should be to ANS:->> ✅stop the blood pump During hemodialysis, the technician would expect a patient's temperature to rise by about. ANS:->> ✅0.5 c Approximately what percentage of the total blood volume circulate in the veins? ANS:->> ✅65% to 80% Patient should be advised to avoid eating during hemodialysis because ingestion of food may result in ANS:->> ✅hypotension Prior to using a reprocessed dialyzer, a recirculating rinse with ns should be
completed with recirculating flow rate through the blood compartment and the dialysate compartment of at least. ANS:->> ✅200 ml/min for bfr and 200 ml/ min for dfr. If a hemodialysis patient test positive for hepatitis c virus (hcv), which of the following interventions does the kdigo guidelines recommend when proving hemodialysis treatment? ANS:->> ✅adherence to strict infection-control procedures If a dialyzer is to be reprocessed in 3 hours, the dialyzer must be ANS:->> ✅refrigerated When documenting observations about a patient, which of the following is the most appropriate description? ANS:->> ✅patient is sighing and rubbing hands together Which of the following is the most common cause of hypotension developing during hemodialysis? ANS:->> ✅removing excessive volume of fluid Which of the following interventions is most likely to decrease hypotension that occurs during hemodialysis? ANS:->> ✅decreasing the ultrafiltration rate
ANS:->> ✅30 to 60 minutes If a patient develops painful muscle cramps in the hands, feet, and abdomen shortly after hemodialysis begins, the most likely interventions is ANS:->> ✅saline bolus and/or decreased ultrafiltration rate. If a hemodialysis patient's temperature per tympanic membrane thermometer is 37c in order to reduce incidendence of intradialytic ( during dialysis ) hypotension, the temperature of the dialysate solution should ideally be set at ANS:->> ✅36.5 c Foam in the venous bloodline of a dialyzer may indicate ANS:->> ✅air embolism Prior to initiating hemodialysis, the ph of the dialyste usually ranges from - ans:->> ✅7.0 to 7. The number one cause of kidney failure in the us is ANS:->> ✅diabetes mellitus, type 2 The use of topical anesthetic, such as emla, to reduce discomfort during cannulation is contraindicated with ANS:->> ✅buttonhole sites A patient who has been very alert and shown no sign of cognitive impairment seems confused during dialysis and repeatedly asks the same question. The best initial response is to ANS:->> ✅notify the nurse When determining if a new av fistula is maturing the three factors to assess by palpation are the ANS:->> ✅thrill, vessel growth, and vessel firmness Which of the following antiseptics used for skin pre for a fistula site has the broadest spectrum antibacterial activity? ANS:->> ✅2% chlorhexidine gluconate While a patient is undergoing hemodialysis, chloramine testing of the water system should be conducted every ANS:->> ✅4 hours
If a patient is to undergo heparin-free dialysis, the optimal blood flow rate is ANS:->> ✅ 300 to 400 ml/min Before cannulating an av fistula for a hemodialysis treatment, the technician examines the patient's access arm and finds that the access arm appears slightly edamatous, and the skin is pale. On further examination, the technician notes that there are small purple veins evident on the chest wall near where the arm meets the body. The technician should suspect ANS:->> ✅stenosis In order to increase survival rates. The ultrafiltration rate for hemodialysis patients should be maintained at least than ANS:->> ✅ 12 ml/kg/m As part of fistula assessment before cannulation, the technician evaluates the thrill and then applies acclusion by placing a finger across the body of the fistula. While the fistula is acceded, the technician palpates and feels both a thrill and a pulse. This probably signifies a (n) ANS:->> ✅accessory pathway ( collateral circulation ) How much additional proteins should a patient on hemodialysis ingest every day in comparison to a health person ANS:->> ✅50% Weight gain between hemodialysis treatments should not exceed ANS:->> ✅5% of dry weight The technician has calculate the target weight loss for a patent's hemodialysis session, but the patient insists that the technician has made an error and the target is 1 kg too high. The technician should ANS:->> ✅recalculate the target weight loss. The most important reason for placing hemodialysis needles in antegrade position ( in direction of blood flow) is because ANS:->> ✅it causes less scarring When preparing dialysate with a 45x concentrate, if the proportioning ratio contains 1.0 part acid and 1.72 parts bicarbonate, how many parts of water are needed? ANS:->> ✅42.
When washing the hands, the hands should be wet and soap applied and then the hands rubbed together for at least ANS:->> ✅ 15 seconds How long can hepatitis b virus live on surfaces if they are not properly disinfected? ANS:->> ✅ 7 days In the event that a fire occurs in a dialysis center, the race method of response includes ANS:->> ✅rescue, active alarm, contain/confine fire, and extinguish/evacuate A patient and his and his spouse are undergoing training for in-home hemodialysis, but the patient tells the technician, '' i ' m so nervous. What happens if i can't learn to do this? The best response is. ANS:-
✅you will only do in-home dialysis when you feel ready.'' In the estrecorporeal circuit, the highest positive pressure is found at the - ans:->> ✅arterial header of the dialyzer. If testing before a hemodialysis treatment shows that the patient's blood level of potassium is too low, the level of potassium in the dialysate is usually ANS:->> ✅increased The factor that has the most influence on a dialysis patients's level of thirst between treatments is. ANS:->> ✅salt intake The purpose of using a water softener in the water distribution system is to ANS:->> ✅reduce levels of calcium and magnesium Patients receiving high-flux dialysis may have. ANS:->> ✅shorter treatment times. If a patient becomes nauseated and vomits during hemodialysis, the initial intervention should. ANS:->> ✅assesss for hypotension
A hero graft is indicated for. ANS:->> ✅patient with stenosis/blockage of central veins leading to the heart. Water is removed from a patient's blood during hemodialysis by
-. ANS:->> ✅osmosis The fluid velocity (speed ) of blood through tubbing is based on flow rate and ANS:->> ✅tube diameter When a dialysis treatment starts, the first point of restriction is the . ANS:->> ✅needle If there is a kink in the venous bloodline between the venous pressure gauge and the venous access, what type of alarm should sound? ANS:->> ✅high venous pressure alarm In an arteriovenous fistula, the venous portion enlarges because of the . ANS:->> ✅high-pressure flow of blood from an artery If an arterial venous fistula, is referred to as autogenous, this means that fistula . ANS:->> ✅is made from the person's own blood vessels Brachiocephalic arteriovenous fistula is located in the. ANS:-
✅upper arm If using ethyl chloride spray on an access site to reduce discomfort, ANS:->> ✅the patient should not feel the needle at all Signs and symptoms of steal syndrome indicate. ANS:->> ✅the hand on side of access feel cold and painful
After the onset of hemodialysis, an anaphylactic reaction usually occurs within. ANS:->> ✅5 to 10 minutes If a reprocessed dialyzer has been accidentally exposed to two germicides, the dialyzer. ANS:->> ✅must be discard The most common site for placement of a straight graft is the. ANS:->> ✅forearm Which of the following is in indication of a pyrogenic reaction to hemodialysis? ANS:->> ✅development of chills and fever 45 minutes into treatment If a high-pressure alarm for venous pressure sounds during hemodialysis, this could indicate. ANS:->> ✅infiltration of the venous needle If the technician needs to move boxes of supplies from the floor to elevated shelves, the technician should ANS:->> ✅bend down at the knees and keep the back straight while lifting For documentation in the medical record, which of the following includes a ANS:->> ✅0.5 kg
For a hemodialysis cannulation with a blood flow rate of fewer than 300ml/ min, which of the following needle gauge sizes is usually recommended? ANS:->> ✅ 17 If the nephrologist has ordered a pre-dialytic and post-dialytic bun ( blood urea nitrogen) for a patient with an av fistula, the pre-dialytic blood sample should be obtained from the. ANS:->> ✅arterial needle The primary focus of the life safety code is on ANS:->> ✅protection of people The dialysis prescription is for a 3 - hour treatment with 1.5 kg to be removed. During treatment 250 ml is used as saline prime and 200 ml as saline rinseback. The patient ingested 150 ml of fluid that contains oral proteins supplement. The ultrafiltration rate to be removed per hour is ANS:->> ✅700 ml If the ultrafiltration rate to be removed per hour is 600 ml and the dialyzer kuf is 40 what is the transmembrane pressure (tmp)? ANS:->> ✅15 mm hg If using a combination chlorhexidine gluconate and alcohol skin prep (such as chloraprep before cannulation, how much skin contact time is required? ANS:->> ✅30 seconds Which of the following preventive measures is usually the best approach for patients who routinely experience hypotension during dialysis because of volume-related problems associated with large weight gain between treatments? ANS:->> ✅increasing restrictions of sodium intake If a patient undergoing hemodialysis and in the care of the technician has a persistent cough, standards precautions require that the ANS:->> ✅patient wear a mask What color is arterial blood tubing for hemodialysis most often color-coded? ANS:->> ✅red
After a hemodialysis needle is removed at the end of treatment, the procedure is to apply pressure to ANS:->> ✅each access site with two fingers for up to 20 minutes A patient who wants to learn self-cannulation may do so if ANS:->> ✅the patient receives appropriate training Thrombosis is newly-created access may be caused by ANS:->> ✅low blood pressure If a new patient has hero (hemodialysis reliable outflow) graft, the cannulation site is generally in the ANS:->> ✅proximal upper arm (below the axilla). If effluent (used dialysate ) spills into the floor, the technician should - ans:->> ✅notify staff trained in hazardous waste removal A patient is recovering hemodialysis with 17-gauge needle, but his blood flow rate has been increased to 450ml/min. The patient complains of symptoms consisten with hemodialysis ( breakdown of red blood cells) sudden onset of chest tightness, back pain, dyspnea, reddening ok skin color, and blood in the venous line appearing port-wine in color. What is likely cause of this complication? ANS:->> ✅needle too small for blood flow rate When handing off a patient to another staff person, the technician should always ANS:->> ✅follow the hand-off protocol established by the institution The technician should ensure when exposing the opening of a central catheter to air (such as when removing the cap or a syringe) that the ANS:->> ✅clamp is closed The hemodialysis center has instituted a "zero lift" policy. The primary purpose of such a policy is to ANS:->> ✅prevent injuries If the dialysis center has an extra hemodialysis machine that has not been used in the previous 2 weeks, how frequently does this machine need to be disinfected? ANS:->> ✅every 48 hours
Five minutes after a patient begins a hemodialysis treatment, the patient has difficulty breathing and rapidly develops generalized hives, itching and swelling about the eyes. After asking the nurse for help, the next action should be to. ANS:->> ✅stop the dialysis and clamps all the lines A patient routinely experiences hypotensive episodes near the end of a session and experiences malaise (tiredness), muscle cramps, and dizziness after dialysis. What is the most likely cause? ANS:->> ✅the dry weight is set too high An adolescent patient has required frequent hospitalization because of nonadherece to be the treatment plan. The best approach to take with the patient is to ANS:->> ✅ask the patient how the staff can help the patient manage better. When the first carbon tank ( the worker) in the water system is exhausted, the next step is to ANS:->> ✅remove the first tank, move the second tank to first position, and add a new tank in second position. Following dialysis, the patient's blood pressure in semi-reclining position is 128/86. The technician takes a series of blood pressure over 3 minutes after the patient stands. At which blood pressure should the technician alert the nurse that the patient is exhibiting orthotic hypotension? ANS:->> ✅108/ The technician is able to feel no pulse or thrill along the patient's outflow vein and can detect no bruit. The technician should suspect ANS:->> ✅thrombosis If a dialysis patient is very large in both stature and weight, which of the following is most likely to improve the effectiveness of hemodialysis ANS:->> ✅increase dialyzer size The duties that the technician is allowed to carry out depend primarily on the ANS:->> ✅state regulations/standards of practice
