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CCHT Exam ACCURATE TESTED VERSIONS OF THE EXAM FROM 2023TO 2024 | ACCURATE AND VERIFIED | NEXT GEN FORMAT | GUARANTEED PASS
Typology: Exams
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At the completion of a dialysis treatment, it's important to rinse back as much blood as possible in order to
A hemodialysis system includes blood volume monitoring to assess changes in the patient's hematocrit. If the hematocrit increases rapidly, this means
dyspnea, reddening of skin color, and blood in the venous line appearing port-wine in color. What is the likely cause of this complication?
When the technician is teaching a patient to self-cannulate using the tandem-hand technique, the ____________.
The aluminum level in dialysis water should be ____________. - Ans - ≤ 0.01 mg/L. Normal saline has a sodium chloride concentration of ____________. - Ans - 0.9%. As part of anemia management for patients receiving hemodialysis, the technician should ____________. - Ans - rinse back as much blood as possible. Patients receiving hemodialysis are at risk for amyloidosis. Which of the following symptoms may indicate amyloidosis? - Ans - Joint pain. A patient who experiences numbness, tremors, muscle spasms, and muscle pain may have low levels of ____________. - Ans - calcium. Which of the following laboratory tests is often done before and after hemodialysis to measure the effectiveness of dialysis in removing waste products from the body? - Ans - Blood urea nitrogen. A patient beginning hemodialysis usually has a hemoglobin test every ____________. - Ans - one to two weeks. The most common treatment for patients with end-stage kidney disease in the United States is ____________. - Ans - daytime in-center hemodialysis. Which of the following is an indication that a patient may be losing fat and/or muscle mass even though he or she reaches the target dry weight after treatment? - Ans - Patient becomes short of breath if lying flat after treatment. Which member of the hemodialysis care team is responsible for setting up the plan of care for a patient? - Ans - Nephrologist. If a patient comes for hemodialysis treatment but weighs less than the target dry weight before treatment, the technician should ____________. - Ans - notify the nurse and dietician. The first step in treating malnutrition in a dialysis patient is usually to ____________. - Ans - encourage the patient to eat more. One-half teaspoon of salt is equal to about how many milligrams of sodium? - Ans - 1000 mg. Because of increasing phosphorus levels, a patient has been prescribed a phosphate binder, but the patient is unsure when to take the medication. The best advice is to take the medication____________. - Ans - with meals.
If a patient is concerned about loss of income because of the need for hemodialysis, the best person to speak to the patient about this concern is the ____________. - Ans - social worker. When using active listening, which of the following is a good example of a short, open- ended question to use to encourage patient communication? - Ans - "What does the pain in your abdomen feel like?" If a patient has refused to participate in education, asks no questions, and shows no interest in learning about hemodialysis, the best approach for the technician is to ____________. - Ans - talk through all steps in the procedures. Diffusion is a process that involves ____________. - Ans - movement of solutes though a semipermeable membrane from an area of higher A dialysis machine is set up to use 36.1X parts dialysate. If the concentrate proportioning ratio calls for 1.00 part acid and 1.10 parts bicarbonate, how many parts of water are needed? - Ans - 34.0. About what percentage of body water is in the intravascular space (inside blood vessels)? - Ans - 10%. The mass transfer coefficient of a dialyzer refers to ____________. - Ans - When using an alcohol-based hand rub, the hand rub should be applied to one palm and the hands rubbed together ____________. When using an alcohol-based hand rub, the hand rub should be applied to one palm and the hands rubbed together ____________. - Ans - until dry. The three processes that affect dialyzer clearance are (1) diffusion, (2) convection, and (3) ____________. - Ans - adsorption. If a dialyzer has a sieving coefficient of 0.6 for a solute, what percentage of the solute should pass through the membrane? - Ans - 60%.. Most dialyzer membranes used today are made of____________. - Ans - synthetic If a dialyzer has a urea clearance rate of 200 mL/min and a blood flow rate of 400 mL/min, what percentage of the 400 mL of blood is cleared of urea in one minute? - Ans
If the blood leak alarm sounds during a hemodialysis treatment and the blood pump stops and lines clamp but the dialysate appears clear, the technician should ____________. - Ans - use Hemastix® to check the extent of the leak. When using a portable pH monitor to verify that an in-line pH monitor reading is correct, the technician should first ____________. - Ans - test a solution with a known pH. If a solution has an equal number of acid and base ions and is neutral, the pH is ____________. - Ans - 7. A volumetric ultrafiltration control system has ____________. - Ans - two identical dialysate chambers. The extracorporeal circuit carries blood ____________. - Ans - from arterial access to the dialyzer and back to venous access. A drip chamber that contains a fine mesh screen should be placed ____________. - Ans - between the dialyzer and the venous access. If a low-pressure alarm for arterial pressure (prepump) sounds during dialysis, this could indicate ____________. - Ans - infiltration of the arterial needle. If a high-pressure alarm for the predialyzer (postpump) pressure sounds during dialysis, this could indicate ____________. - Ans - clotted dialyzer. The lifespan of an arteriovenous graft is usually ____________. - Ans - 3 to 5 years. The heart must work harder when patients have an arteriovenous fistula because the ____________. - Ans - blood flow is faster. The technician should alert the nurse that the patient is experiencing tachycardia (rapid pulse) when the pulse exceeds ____________. - Ans - 100. A patient has opted to have a buttonhole tract for hemodialysis. Which of the following is the most important factor for creation of a buttonhole tract? - Ans - The same cannulator should do treatments until the tunnel is established. When a patient is utilizing home hemodialysis, the purpose of teaching the patient to "snap and tap" the tubing and filter is to ____________. - Ans - remove air bubbles. An 85-year-old patient with end-stage kidney disease and multiple health problems has started hemodialysis, but the patient is now refusing treatment, stating that death is preferable to the loss of independence and continued illness. The technician should ____________. - Ans - respect the patient's decision.
After a patient receives the initial heparin bolus for hemodialysis, when should dialysis be initiated? - Ans - Within three to five minutes. Which of the following signs and symptoms are indications of infection of an arteriovenous fistula or graft? - Ans - Redness, tenderness, and swelling. If the technician feels unsure about cannulating a patient's fistula because of irregular vessel shapes, the best solution is to ____________. - Ans - ask a more experienced staff member to cannulate. Which of the flowing needle sizes has the largest lumen (diameter)? - Ans - 14 gauge. Retrograde (against the blood flow) insertion of arterial dialysis needles can result in ____________. - Ans - increased scarring. The best method to secure a dialysis needle is probably ____________. - Ans - the butterfly technique. When removing an access needle at the completion of hemodialysis, the technician completely removes the needle before applying pressure. This technique ____________. - Ans - is the correct procedure. If a patient is terrified of needles and often feels faint and nauseated during cannulation, the best position to place the patient in during cannulation is ____________. - Ans - flat. If the blood in the arterial line looks very dark ("black blood syndrome"), the likely cause is ____________. - Ans - recirculation. The best method to prevent aneurysms in a fistula is to ____________. - Ans - use proper technique when inserting needles. If the air detector alarm sounds, the blood pump stops, and the venous line clamps, but the technician notes air in the venous line and is concerned that some air may have entered the patient's vein, the technician should immediately ____________. - Ans - Place the patient in the Trendelenburg position (head below heart) on the left side. The heparin infusion line should generally be placed ____________. - Ans - in the arterial line between the blood pump and the dialyzer. If the power goes out during a treatment, the blood in the bloodlines is ____________. - Ans - returned by hand cranking the blood pump. If a technician notes a high-pitched bruit, a "water-hammer" (pounding) pulse, and evidence of clotting in the extracorporeal circuit during hemodialysis, the technician should suspect ____________. - Ans - stenosis.
If the skin above an arteriovenous graft appears taut and shiny, and previous needle sites are unhealed, the technician should alert the nurse to possible ____________. - Ans - pseudoaneurysm. If the rate of blood flow is too low, this increases the risk of ____________. - Ans - thrombosis (clots) Dialysate is made by mixing water with acid and bicarbonate concentrates. Acid concentrate contains ____________. - Ans - electrolytes, such as calcium and magnesium. When a patient's arteriovenous graft has healed and is ready for the first cannulation, what needle size is usually indicated? - Ans - standard gauge for the blood flow rate. When placing needles in an arteriovenous graft, how far away from the previous needle sites should cannulation be done? - Ans - 0.5 inch. The most common site for development of stenosis in an arteriovenous graft is at ____________. - Ans - the venous end of the anastomosis. Which of the following sites for a central venous catheter may prevent future venous access in the limb on the same side? - Ans - Subclavian vein. The preferred solution to clean exit sites for central venous catheters is ____________.
When hanging a new bag of normal saline, the technician touches the spike to the outside of the bag. The technician must ____________. - Ans - discard the spike and attached tubing. How frequently should patients and staff members of a dialysis center have tuberculosis skin tests? - Ans - Once a year. If a patient has completed a dialysis session and is walking toward the door with the technician but becomes unsteady and begins to fall, the first thing the technician should do is to ____________. - Ans - ease the patient to the floor. The first thing to do when using a portable lift device, such as a Hoyer® lift, to transfer an obese patient is to ____________. - Ans - check the lift's weight limit and sling size. A small fire begins in a waste receptacle, and the technician uses a fire extinguisher to put out the flames. If using the P.A.S.S. protocol, the technician should ____________.
If a patient requires a blood draw for laboratory tests before a hemodialysis treatment, and the laboratory has provided four vacuum tubes for the blood samples, 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 a 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. If a patient develops a nosebleed during a hemodialysis treatment, this could indicate that the ____________. - Ans - heparin dosage is too high. A patient undergoing hemodialysis for the first time does well initially, but at 15 minutes into the treatment, she begins to complain of back pain, itching, slight shortness of breath, and nausea. The most likely cause of these signs and symptoms is ____________. - Ans - first-use syndrome. The best method to prevent leg cramps during hemodialysis is to ____________. - Ans
If three patients having dialysis at the same time in a center that uses a central dialysate delivery system complain of sudden onset of nausea, the technician should suspect a problem with the ____________. - Ans - water system. One fluid ounce is equal to ____ mL. - Ans - 30ml A patient 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 extracorporeal 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 patient'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 be to ____________. - Ans - assess for hypotension. A HeRO® Graft is indicated for ____________. - Ans - patients 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 tubing is based on flow rate and ____________. - Ans - tube diameter. When a dialysis treatment starts, the first point of restriction is the ____________. - Ans
In an arteriovenous fistula, the venous portion enlarges because of the ____________.
If a high-pressure alarm for venous pressure sounds during hemodialysis, this could indicate ____________. - Ans - infiltration of the venous needle. All of the following might be considered categories of acute renal failure except? - Ans - Chronic Chronic is not considered one of the three categories of acute renal failure.The three categories includes: - Ans - Pre-renal intrinsic (internal) Post-renal Medicare pays for dialysis treatments for patients using which of the following methods?
The two types of deionization systems includes the dual and mixed bed systems. Of these two,which would make the highest quality water? - Ans - Mixed bed-The mixed bed tanks contain both anion resin beads and cation resin beads. The mixed bedsystems make the highest quality water Which of the following has the potential to irritate the lining around the heart causing inflammation? - Ans - Fluid overload Uremic toxins Viral infections The rib cage and which of the following helps to protect the kidneys? - Ans - pads of fat help to protect the kidneys-Each kidney weighs approximately 5 ounces and is located at the back of the body. Which of the following would be used to classify an obstruction of the urinary tract that would be considered either partial or complete? - Ans - Degree Which of the following is typically considered an in-facility renal replacement therapy that is now being performed by some patient's at home? - Ans - Hemodialysis With the end-stage renal disease patient, anemia could potential cause all of the following except? - Ans - A pro-longed life span of their red blood cells Patient rights would not include which of the following? - Ans - To have 24 hour around the clock medical service at home. If an end-stage renal disease patient receives transfusions, which of the followingcomplications might occur? - Ans - Contract infections Develop iron overload Experience transfusion reactions Which of the following medications would not be eliminated through hemodialysis? - Ans - Ceftazidime The medications that would be eliminated through peritoneal dialysis instead of hemodialysis - Ans - Ceftazidime Aminoglycoside antibiotics Cefipime Enalapril Medications which would be eliminated through both hemodialysis and peritoneal dialysis - Ans - Fluconazole Imipenem Lithium Mannitol
Phenobarbital Salicylate Sulfisoxazole Which of the following should be monitored for bacterial growth and endotoxins? - Ans - Dialysate Water storage tanks Water distribution piping system Which of the following conditions can cause sharp calcium phosphate crystals to form in a patient's joints, heart, eyes or skin? - Ans - Extraskeletal calcification-s a rare condition that occurs when the phosphorus and calcium levels become too high at the same time and bonds together. GN stands for which of the following? - Ans - Glomerulonephritis-GN is considered the third most common cause of end-stage renal disease. All but which of the following medications would not interfer with the results of a serum creatinine level test? - Ans - Salicylates _________ _________ is a rare condition in which the calcium and the phosphorus levels aretoo high at the same time and they bond together? - Ans - Extraskeletal calcification All but which of the following would be considered a goal for the patient that is on dialysis? - Ans - To cure the patient The educational process that is used to prepare the hemodialysis patient to self- cannulate typically last for how long? - Ans - Four weeks The technician/LPN should know the average length of a needle that might be required to cannulatean upper arm access. Which of the following would be considered correct?
All but which of the following would help prevent the patient from developing a clot in their venous access? - Ans - Allow the use of the access arm for IV infusion in the site NANT stands for which of the following? - Ans - National Association of Nephrology Technicians/Technologists-This is an association that offers educational programs to help the technicians keep up to date on their skills and knowledge. One of the ingredients of typical dialysate fluid would be considered glucose. Which of the following would this ingredient help the dialysis patient with? - Ans - Helps to decrease the amount of potassium in the blood/ Helps prevent low blood sugar __________ molecules move faster than ________ ones? - Ans - Warm/cold When the kidneys excrete waste and excess water as urine, all but which of the following would be considered correct for where these would come from? - Ans - Respirations Which of the following would be the correct professional association for LPN/technicians? - Ans - NANT-NANT stands for National Association of Nephrology Technicians/Technologists. They offereducational programs that helps the technicians keep up to date on both their knowledge and skills. Of the following, which would be considered a main role of the LPN/technician? - Ans - Patient care Assembling and maintenance of equipment Which of the following would be eliminated from the body only by peritoneal dialysis? - Ans - Ceftazidime The technician/LPN is attempting to determine if a patient's catheter is an internal jugularor a subclavian, which of the following would be considered correct? - Ans - If the technician can't feel the catheter over the clavicle, it would be considered a subclavian. Of the following, which would be considered one of the factors that is convenient about using an automated system for reprocessing dialyzers? - Ans - The automated system can self-test. Which of the following foods would be considered high in potassium? - Ans - Cantaloupe Chocolate Tips which could be used by the technician/nurse when lifting/moving a patient would not include? - Ans - Always lift the patient by yourself
The KDOQI guidelines regarding a pseudoaneurysm could include which of the following? - Ans - These guidelines state to never place dialysis needles into a pseudoaneurysm. When the germicide peracetic acid is diluted, it breaks down to biodegradable acetic acid, oxygem, and water. Which of the following would be considered a reason for this germicide not be used? - Ans - High cost If a group of patients develop a reaction while using a dialyzer from a reprocess program, which of the following interventions should be done? - Ans - Stop the program and do not restart until the whole reprocessing system has been checked. If a patient develops analgesic nephropathy related to taking NSAIDS, which of the following would be considered the main treatment that would be considered correct? - Ans - Cessation of the NSAIDs Which of the following statements would be the most correct regarding the nephrology nurse? - Ans - The nephrology nurse has the potential to both support the patient and be instrumental inpreventing some of the complications of kidney failure. Which of the following will tell the technician/LPN the level of the total dissolved solids(TDS) in the water, in parts per million? - Ans - Conductivity The amount of time that it takes a medication to decrease by 50% in it's serum concentration would be considered? - Ans - Half-life All of the following would be considered types of diabetes mellitus except? - Ans - Neuropathy The types of diabetes consists of: - Ans - Type 2 Gestational Secondary Type 1 Pre-diabetes The organ in the body that does the largest percentage of metabolism of the fat-soluble medications so that they can be excreted would be considered? - Ans - Liver __________ would be considered a thin layer of tissue? - Ans - Membrane Which of the following statements would be considered the most correct in regards to convection? - Ans - During hemodialysis, when the solvent moves from the blood side to the dialysate side ofthe membrane dragging molecules of dissolved solute. Arterialization would be best described as which of the following? - Ans - When the strong fast arterial blood flow begins to enlarge the fistula making it tougher.
The temperature that the water is heated to when performing a 3-cycle heat disinfection process (for hemodialysis machine) is considered 85-95 C. How long is this hot water passed through the hydraulic circuit in a recirculation cycle? - Ans - 20 - 60 minutes Which of the following complications might be considered responsible for the dialysis patient to experience tetany? - Ans - Hypocalcemia-Symptoms of the complication can include:Tetany (muscle spasms, facial twitches, and muscle pain)SeizuresNumbness If bright cherry red blood is seen in the patient's lines during hemodialysis, which of the following should be the first thing the technician should do? - Ans - Stop treatment immediately During hemodialysis, it is possible for too much fluid to be taken off. Which of the following would not be considered a complication of too much fluid being taken off? - Ans - Shortness of breath Of the following interventions which would not be considered an intervention for helpingprevent seizures during dialysis? - Ans - Encourage the patient to follow their fluid restrictions. Which of the following would be considered the normal range amount of chloride in the human body? - Ans - 95 - 110 mEq/L would be the normal amount of calcium in the body. - Ans - 8.6-10.3 mg/dL would be the normal amount of urea in the body. - Ans - 5 - 25 mg/dL Of the following, which would not be considered correct regarding peritoneal dialysis? - Ans - Is not more work-friendly The following would be considered correct regarding peritoneal dialysis: - Ans - Is performed at home Is considered a self-care therapy treatment Is more flexible than hemodialysis Infections and which of the following would be considered common graft complications which can occur? - Ans - Pseudoaneurysm Dialysis dementia (caused by a build up of aluminum) in the dialysis patient, can lead toall of the following except? - Ans - Severe headaches Which of the following interventions would be considered correct for the technician to do if the sterile package that is obtained for a hemodialysis treatment is wet? - Ans - Do not use the pack
Of the following, which would be considered step 1 in filling a UF (ultrafiltration) burette during dialysis? - Ans - The high and low level sensors in the UF burette signal a valve to both open and close. During dialysis, water soluble vitamins may be removed. Which of the following would notbe considered one of these vitamins? - Ans - Vitamin E Temperature and which of the following would be considered profiling programs which the hemodialysis machine can run? - Ans - Dialysate flow rate The hemodialysis machines have the ability to run profiling programs. Which of the followingwould be considered one of these programs? - Ans - Ultrafiltration Sodium All of the following are considered alternative dialysis therapies except? - Ans - Triple needle hemodialysis When the technician/LPN checks the patient and sees bright cherry red blood in the patient'slines, which of the following interventions should be done first? - Ans - Stop the treatment Any venous access for dialysis requires an increase in the patient's cardiac output. What would be thetypical percentage of increase would an access require? - Ans - 10%- increase in the volume of blood passing through the heart will be required for the patient to have a fistula. When attempting to decrease the serum calcium level of the hemodialysis patient during their treatment, which of the following would not be considered correct? - Ans - Use a dialysate that is high in glucose The cephalic vein and which of the following would be used to form the brachiocephalic fistula? - Ans - Brachial artery The access site scarring that is similar to ear piercing that can occur because of placing the sharp dialysis needles into the same place for 3-4 weeks would be considered? - Ans - Buttonhole technique Which of the following is used as the filter for peritoneal dialysis and is full of capillaryblood vessels that act as tiny filters? - Ans - Peritoneum If a medication is ordered BID, which of the following would be considered correct as to how often it should be adminsitered? - Ans - Two times a day The technician has completed a treatment of a hemodialysis patient and is now cleaning up in preparation for the next patient. An item that has not been used is found on top of
the dialysis machine. Which of the following would be considered correct for what should be done with the item that was found? - Ans - Throw it out The new graft option that can be used on patient's whose only option would be a centralvenous catheter would be? - Ans - Hemodialysis Reliable Outflow Of the following, which term would be correct for when the strong fast arterial blood flowbegins to enlarge the fistula making it tougher? - Ans - Arterialization During the reprocessing treatment, the length of time that a disinfectant is required tostay in the dialyzer to make certain there is proper disinfection is referred to as whichof the following? - Ans - Dwell time The device on the dialysis machine that is used to detect air in the venous chamber, issometimes referred to as which of the following? - Ans - Air-embolism detector Foam detector The process of passing fluid through a filter would be considered which of the following?
The hemodialysis patient typically weighs daily at home for which of the following reasons? - Ans - Can help determine how well they are controlling their fluid balance between treatments. The core curriculum modules for dialysis technician/LPN training contains all of thefollowing except? - Ans - Acknowledgment Which of the following could be considered different dialysis technician/LPN trainingprograms that could be utilized? - Ans - Independent study On-the-job training Vocational programs Which of the following would be considered the most correct statement about how themachine used in the dialysis process works to control the ultrafiltration and howmuch water is removed during a dialysis treatment? - Ans - The pressure is varied in order to control the ultrafiltration. High pressure in the blood compartments forces water out of the blood. If an infiltration occurs during the cannulation process, which of the following would not be considered a sign or symptom? - Ans - Diaphoresis Which of the following might be considered an appropriate intervention if the hemodialysis patient experiences an infiltrate from needle cannulation? - Ans - Place an ice pack on the site of the infiltrate Patient care and which of the following would be covered in the Certified Hemodialysis Technician (CHT) exam? - Ans - Dialyzer reprocessing Of the following, which would not be considered correct for a boundary that the technician/nurse in the dialysis center should observe? - Ans - Never wash hands prior to touching a patient