10 free, exam-style Certified Clinical Hemodialysis Technician (CCHT) practice questions with answers and explanations. No signup required. Work through them below, then take the full free CCHT practice test to study every exam domain.
These 10 free CCHT questions are organized by exam domain, so you can see how each part of the Certified Clinical Hemodialysis Technician blueprint is tested. Reveal the answer and explanation under each question.
During hemodialysis, the venous line is found disconnected from an empty IV bag. The patient suddenly becomes dyspneic and reports chest tightness. After clamping the venous line and stopping the blood pump, which position should the patient be placed in?
Correct answer: C - Left lateral decubitus with the head tilted down
Forty-five minutes into a hemodialysis treatment, a patient reports burning at the access site and lower back pain. The technician observes that the blood in the venous return line appears cherry-red. What is the MOST appropriate immediate action?
Correct answer: B - Stop the pump and do not return blood to the patient
A patient's pre-dialysis weight is 82.0 kg and estimated dry weight is 78.0 kg. The prescribed treatment time is 3.5 hours and no additional fluid intake is anticipated. What is the approximate ultrafiltration rate, and how does it compare to the KDOQI recommended safety threshold?
Correct answer: D - 14.7 mL/kg/hr; the treatment plan should be modified
During a pre-dialysis assessment, a technician auscultates a bruit over a patient's arteriovenous fistula but cannot palpate a thrill anywhere along the vessel. The patient reports the arm 'felt different' when they woke up. What is the MOST appropriate action?
Correct answer: A - Withhold cannulation and notify the registered nurse immediately
A patient with a BUN of 148 mg/dL is presenting for their very first hemodialysis treatment. To minimize the risk of dialysis disequilibrium syndrome, which prescription parameters are MOST appropriate?
Correct answer: B - Blood flow 200 mL/min, 2-hour treatment, small-surface-area dialyzer
Before beginning the first patient treatment of the morning shift, a dialysis technician prepares to test the water for chlorine. Which sampling location and maximum allowable total chlorine level are correct?
Correct answer: A - After the worker carbon tank; no more than 0.1 mg/L
After reprocessing, a hemodialyzer's total cell volume (TCV) measures 76% of the pre-use baseline. The pressure-hold leak test is negative. Which action should the technician take?
Correct answer: A - Discard the dialyzer; the TCV is below the 80% minimum threshold
A patient is 90 minutes into a treatment when the high venous pressure alarm activates. The reading is significantly elevated compared to the baseline value recorded at treatment initiation. What is the MOST likely cause?
Correct answer: B - A partial obstruction in the venous return pathway
A technician is caring for an HBsAg-positive patient in the isolation room when a nurse unexpectedly calls out sick. The supervisor asks the technician to also monitor an unvaccinated patient in the main treatment area. What should the technician do?
Correct answer: C - Decline; this violates CMS isolation requirements
A patient reports severe muscle cramps during the last four treatments and asks the technician to raise the dialysate sodium from 135 to 145 mEq/L. The technician knows that sodium modeling can help reduce cramping. What is the MOST appropriate response?
Correct answer: D - Document the patient's complaint and notify the registered nurse for evaluation
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