CCHT EXAM /CERTIFIED CLINICAL HEMODIALYSIS
TECHNICIAN ACTUAL TEST 2026/2027 ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED
SOLUTIONS) CURRENTLY UPDATED VERSION 2026
EDITION |GUARANTEED PASS A+ |FULL REVISED CCHT
EXAM
1. A patient’s predialysis BUN is 60 mg/dL and postdialysis BUN is 18 mg/dL. What is the calculated URR?
A) 65%
B) 70%
C) 42%
D) 70%
CORRECT ANSWER: D – URR = (predialysis BUN – postdialysis BUN) / predialysis BUN × 100 = (60-18)/60
× 100 = 70%. URR should be ≥65%.
2. During hemodialysis, a patient complains of chest pain and shortness of breath. The technician notes
the venous pressure is suddenly elevated. The most likely cause is:
A) Hypotension
B) Needle infiltration
C) Venous needle malposition or stenosis
D) Air embolism
CORRECT ANSWER: C – Elevated venous pressure with chest pain suggests outflow obstruction (e.g.,
stenosis or needle against vein wall). Hypotension lowers pressures; infiltration causes low venous
pressure.
3. Which of the following is the preferred vascular access for long-term hemodialysis?
A) Graft
B) Fistula
C) Central venous catheter
D) PICC line
,CORRECT ANSWER: B – Arteriovenous fistula has lowest infection and complication rates, best long-term
patency.
4. A patient’s potassium level is 6.8 mEq/L before dialysis. The technician should first:
A) Begin dialysis immediately
B) Notify the patient’s family
C) Report to the nurse or provider
D) Give oral kayexalate
CORRECT ANSWER: C – Critical hyperkalemia requires immediate provider notification; dialysis is likely,
but technician must report first.
5. During rinse back, the technician notices a small clot in the venous drip chamber. What is the
appropriate action?
A) Return the blood quickly before the clot moves
B) Stop the blood pump and do not return the clot
C) Flush the clot through with saline
D) Remove the clot with a sterile syringe
CORRECT ANSWER: B – Returning a clot risks embolism; correct procedure is to stop pump and discard
the lines.
6. The primary purpose of dialysate is to:
A) Sterilize the blood
B) Add medications to blood
C) Remove waste products and balance electrolytes
D) Warm the blood
CORRECT ANSWER: C – Dialysate creates diffusion gradients for waste removal and electrolyte
correction.
7. A patient’s arterial pressure becomes less negative (e.g., from –200 to –120 mmHg). This indicates:
A) Improved blood flow
, B) Possible access stenosis or needle against vessel wall
C) Venous pressure drop
D) Dialyzer clotting
CORRECT ANSWER: B – Less negative arterial pressure means reduced inflow resistance; often due to
access narrowing or poor needle position.
8. Which lab value is most critical to monitor for a patient receiving heparin during dialysis?
A) Serum sodium
B) Activated clotting time (ACT)
C) Serum calcium
D) Hemoglobin
CORRECT ANSWER: B – ACT measures anticoagulation; too high risks bleeding, too low risks clotting.
9. The dialysate flow rate is typically set at what ratio to blood flow?
A) 0.5:1
B) 1:1
C) 1.5–2:1
D) 4:1
CORRECT ANSWER: C – Dialysate flow 500–800 mL/min vs blood flow 300–450 mL/min (1.5–2:1)
maximizes clearance.
10. A patient develops hypotension during dialysis. The first action is:
A) Increase ultrafiltration rate
B) Place patient in Trendelenburg and reduce UFR
C) Give normal saline bolus
D) Increase blood flow
CORRECT ANSWER: B – Positioning and reducing fluid removal are immediate first steps; saline if no
improvement.
11. What is the acceptable sodium concentration range in dialysate?
TECHNICIAN ACTUAL TEST 2026/2027 ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED
SOLUTIONS) CURRENTLY UPDATED VERSION 2026
EDITION |GUARANTEED PASS A+ |FULL REVISED CCHT
EXAM
1. A patient’s predialysis BUN is 60 mg/dL and postdialysis BUN is 18 mg/dL. What is the calculated URR?
A) 65%
B) 70%
C) 42%
D) 70%
CORRECT ANSWER: D – URR = (predialysis BUN – postdialysis BUN) / predialysis BUN × 100 = (60-18)/60
× 100 = 70%. URR should be ≥65%.
2. During hemodialysis, a patient complains of chest pain and shortness of breath. The technician notes
the venous pressure is suddenly elevated. The most likely cause is:
A) Hypotension
B) Needle infiltration
C) Venous needle malposition or stenosis
D) Air embolism
CORRECT ANSWER: C – Elevated venous pressure with chest pain suggests outflow obstruction (e.g.,
stenosis or needle against vein wall). Hypotension lowers pressures; infiltration causes low venous
pressure.
3. Which of the following is the preferred vascular access for long-term hemodialysis?
A) Graft
B) Fistula
C) Central venous catheter
D) PICC line
,CORRECT ANSWER: B – Arteriovenous fistula has lowest infection and complication rates, best long-term
patency.
4. A patient’s potassium level is 6.8 mEq/L before dialysis. The technician should first:
A) Begin dialysis immediately
B) Notify the patient’s family
C) Report to the nurse or provider
D) Give oral kayexalate
CORRECT ANSWER: C – Critical hyperkalemia requires immediate provider notification; dialysis is likely,
but technician must report first.
5. During rinse back, the technician notices a small clot in the venous drip chamber. What is the
appropriate action?
A) Return the blood quickly before the clot moves
B) Stop the blood pump and do not return the clot
C) Flush the clot through with saline
D) Remove the clot with a sterile syringe
CORRECT ANSWER: B – Returning a clot risks embolism; correct procedure is to stop pump and discard
the lines.
6. The primary purpose of dialysate is to:
A) Sterilize the blood
B) Add medications to blood
C) Remove waste products and balance electrolytes
D) Warm the blood
CORRECT ANSWER: C – Dialysate creates diffusion gradients for waste removal and electrolyte
correction.
7. A patient’s arterial pressure becomes less negative (e.g., from –200 to –120 mmHg). This indicates:
A) Improved blood flow
, B) Possible access stenosis or needle against vessel wall
C) Venous pressure drop
D) Dialyzer clotting
CORRECT ANSWER: B – Less negative arterial pressure means reduced inflow resistance; often due to
access narrowing or poor needle position.
8. Which lab value is most critical to monitor for a patient receiving heparin during dialysis?
A) Serum sodium
B) Activated clotting time (ACT)
C) Serum calcium
D) Hemoglobin
CORRECT ANSWER: B – ACT measures anticoagulation; too high risks bleeding, too low risks clotting.
9. The dialysate flow rate is typically set at what ratio to blood flow?
A) 0.5:1
B) 1:1
C) 1.5–2:1
D) 4:1
CORRECT ANSWER: C – Dialysate flow 500–800 mL/min vs blood flow 300–450 mL/min (1.5–2:1)
maximizes clearance.
10. A patient develops hypotension during dialysis. The first action is:
A) Increase ultrafiltration rate
B) Place patient in Trendelenburg and reduce UFR
C) Give normal saline bolus
D) Increase blood flow
CORRECT ANSWER: B – Positioning and reducing fluid removal are immediate first steps; saline if no
improvement.
11. What is the acceptable sodium concentration range in dialysate?
